From havemanf at CMS.HU-BERLIN.DE Mon Dec 3 09:47:37 2007 From: havemanf at CMS.HU-BERLIN.DE (Frank Havemann) Date: Mon, 3 Dec 2007 15:47:37 +0100 Subject: Looking for Price 1967 paper In-Reply-To: <200711211307.47585.havemanf@cms.hu-berlin.de> Message-ID: Again I ask for an important paper (because last times I got some from list members very quickly and because 25$ should not be paid for a piece of knowledge, all knowledge shoud be free for all): @article{price1976gtb, title={{A General Theory of Bibliometric and Other Cumulative Advantage Process}}, author={Price, D.J. deSolla}, journal={Journal of the American Society of Information Science}, volume={27}, pages={292--306}, year={1976} } Does anyone have a PDF version of this classic paper? Thank you in advance! (I will not thank via this list and will not give the name of the donator to JASIST) Frank Havemann *************************** Dr. Frank Havemann Department of Library and Information Science Humboldt University Dorotheenstr. 26 D-10099 Berlin Germany tel.: (0049) (030) 2093 4228 http://www.ib.hu-berlin.de/inf/havemann.html From havemanf at CMS.HU-BERLIN.DE Mon Dec 3 12:17:32 2007 From: havemanf at CMS.HU-BERLIN.DE (Frank Havemann) Date: Mon, 3 Dec 2007 18:17:32 +0100 Subject: Looking for Price 1976 (not 1967) paper In-Reply-To: <200712031547.37177.havemanf@cms.hu-berlin.de> Message-ID: And again I got a copy within one hour! I can recommend this kind of open access strongly. FH 3. Dezember 2007 15:47 havemanf at cms.hu-berlin.de: > Again I ask for an important paper (because last times I got some from list > members very quickly and because 25$ should not be paid for a piece of > knowledge, all knowledge shoud be free for all): > > @article{price1976gtb, > title={{A General Theory of Bibliometric and Other Cumulative Advantage > Process}}, > author={Price, D.J. deSolla}, > journal={Journal of the American Society of Information Science}, > volume={27}, > pages={292--306}, > year={1976} > } > > Does anyone have a PDF version of this classic paper? > > Thank you in advance! > (I will not thank via this list and will not give the name of the donator > to JASIST) > > Frank Havemann > > *************************** > Dr. Frank Havemann > Department of Library and Information Science > Humboldt University > Dorotheenstr. 26 > D-10099 Berlin > Germany > > tel.: (0049) (030) 2093 4228 > http://www.ib.hu-berlin.de/inf/havemann.html From eugene.garfield at THOMSON.COM Mon Dec 3 12:48:59 2007 From: eugene.garfield at THOMSON.COM (Eugene Garfield) Date: Mon, 3 Dec 2007 12:48:59 -0500 Subject: Looking for Price 1976 (not 1967) paper In-Reply-To: <200712031817.32699.havemanf@cms.hu-berlin.de> Message-ID: Dear Frank: If you go the following URL you will find several HistCite collections related to Derek Price's work. http://garfield.library.upenn.edu/histcomp/index-price.html Of late the 1976 paper in JASIS has become popular among physicists. Gene Garfield When responding, please attach my original message __________________________________________________ Eugene Garfield, PhD. email: garfield at codex.cis.upenn.edu home page: www.eugenegarfield.org Tel: 215-243-2205 Fax 215-387-1266 -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Frank Havemann Sent: Monday, December 03, 2007 12:18 PM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] Looking for Price 1976 (not 1967) paper And again I got a copy within one hour! I can recommend this kind of open access strongly. FH 3. Dezember 2007 15:47 havemanf at cms.hu-berlin.de: > Again I ask for an important paper (because last times I got some from list > members very quickly and because 25$ should not be paid for a piece of > knowledge, all knowledge shoud be free for all): > > @article{price1976gtb, > title={{A General Theory of Bibliometric and Other Cumulative Advantage > Process}}, > author={Price, D.J. deSolla}, > journal={Journal of the American Society of Information Science}, > volume={27}, > pages={292--306}, > year={1976} > } > > Does anyone have a PDF version of this classic paper? > > Thank you in advance! > (I will not thank via this list and will not give the name of the donator > to JASIST) > > Frank Havemann > > *************************** > Dr. Frank Havemann > Department of Library and Information Science > Humboldt University > Dorotheenstr. 26 > D-10099 Berlin > Germany > > tel.: (0049) (030) 2093 4228 > http://www.ib.hu-berlin.de/inf/havemann.html Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.22/1111 - Release Date: 11/5/2007 4:36 AM From havemanf at CMS.HU-BERLIN.DE Tue Dec 4 06:21:38 2007 From: havemanf at CMS.HU-BERLIN.DE (Frank Havemann) Date: Tue, 4 Dec 2007 12:21:38 +0100 Subject: Looking for Price 1976 (not 1967) paper In-Reply-To: <311174B69873F148881A743FCF1EE53703D4A308@TSHUSPAPHIMBX02.ERF.THOMSON.COM> Message-ID: Dear Gene, many thanks for your advice to HistCite. Years ago I read in the book of Egghe & Rousseau about Derek Price's paper. Later I found Mark Newman's 2003 review (see below) very instructive with regard to the exact solution of the Price Model. He is one of the physicists which cite this paper. He shows that the Price model is much better than the famous Barabasi-Albert model. Frank Havemann 3. Dezember 2007 18:48 Eugene Garfield: > Dear Frank: If you go the following URL you will find several HistCite > collections related to Derek Price's work. > http://garfield.library.upenn.edu/histcomp/index-price.html > > Of late the 1976 paper in JASIS has become popular among physicists. > Gene Garfield > > When responding, please attach my original message > __________________________________________________ > Eugene Garfield, PhD. email: garfield at codex.cis.upenn.edu > home page: www.eugenegarfield.org > Tel: 215-243-2205 Fax 215-387-1266 @Article{Newman2003structure, author = {M. E. J. Newman}, title = {The structure and function of complex networks}, journal = {SIAM Review}, volume = {45}, pages = {167--256}, year = {2003}, } From eugene.garfield at THOMSON.COM Tue Dec 4 10:54:45 2007 From: eugene.garfield at THOMSON.COM (Eugene Garfield) Date: Tue, 4 Dec 2007 10:54:45 -0500 Subject: Looking for Price 1976 (not 1967) paper In-Reply-To: <200712041221.38577.havemanf@cms.hu-berlin.de> Message-ID: That paper by Mark Newman has been cited in over a thousand papers. (WOS entry below) And he also cites the Egghe-Rousseau book which, although out of print, is available on the web. EG Title: The structure and function of complex networks Author(s): Newman MEJ Source: SIAM REVIEW 45 (2): 167-256 JUN 2003 Document Type: Review Language: English Cited References: 428 Times Cited: 1023 Abstract: Inspired by empirical studies of networked systems such as the Internet, social networks, and biological networks, researchers have in recent years developed a variety of techniques and models to help us understand or predict the behavior of these systems. Here we review developments in this field, including such concepts as the small-world effect, degree distributions, clustering, network correlations, random graph models, models of network growth and preferential attachment, and dynamical processes taking place on networks. Author Keywords: networks; graph theory; complex systems; computer networks; social networks; random graphs; percolation theory KeyWords Plus: SMALL-WORLD NETWORKS; SCALE-FREE NETWORKS; BARABASI-ALBERT NETWORKS; GROWING RANDOM NETWORKS; SOCIAL NETWORKS; RANDOM GRAPHS; EVOLVING NETWORKS; FOOD WEBS; WIDE-WEB; METABOLIC NETWORKS Addresses: Newman MEJ (reprint author), Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA Univ Michigan, Ctr Study Complex Syst, Ann Arbor, MI 48109 USA Publisher: SIAM PUBLICATIONS, 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA Subject Category: Mathematics, Applied -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Frank Havemann Sent: Tuesday, December 04, 2007 6:22 AM To: SIGMETRICS at LISTSERV.UTK.EDU Subject: Re: [SIGMETRICS] Looking for Price 1976 (not 1967) paper Dear Gene, many thanks for your advice to HistCite. Years ago I read in the book of Egghe & Rousseau about Derek Price's paper. Later I found Mark Newman's 2003 review (see below) very instructive with regard to the exact solution of the Price Model. He is one of the physicists which cite this paper. He shows that the Price model is much better than the famous Barabasi-Albert model. Frank Havemann 3. Dezember 2007 18:48 Eugene Garfield: > Dear Frank: If you go the following URL you will find several HistCite > collections related to Derek Price's work. > http://garfield.library.upenn.edu/histcomp/index-price.html > > Of late the 1976 paper in JASIS has become popular among physicists. > Gene Garfield > > When responding, please attach my original message > __________________________________________________ > Eugene Garfield, PhD. email: garfield at codex.cis.upenn.edu home page: > www.eugenegarfield.org > Tel: 215-243-2205 Fax 215-387-1266 @Article{Newman2003structure, author = {M. E. J. Newman}, title = {The structure and function of complex networks}, journal = {SIAM Review}, volume = {45}, pages = {167--256}, year = {2003}, } Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.22/1111 - Release Date: 11/5/2007 4:36 AM Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.22/1111 - Release Date: 11/5/2007 4:36 AM From garfield at CODEX.CIS.UPENN.EDU Thu Dec 6 11:02:41 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 6 Dec 2007 11:02:41 -0500 Subject: How is science cited on the web? A classification of google unique web citations, Kousha, K; Thelwall, M, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1631-1644 Message-ID: E-mail Address: kkoosha at ut.ac.ir Author(s): Kousha, K (Kousha, Kayvan); Thelwall, M (Thelwall, Mike) Title: How is science cited on the web? A classification of google unique web citations Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, 58 (11): 1631-1644 SEP 2007 Language: English Document Type: Article Keywords Plus: SCHOLARLY COMMUNICATION; SCIENTIFIC COMMUNICATION; LINK ANALYSIS; CO-WORDS; INFORMATION; FRAMEWORK; INTERNET; ACCESS; IMPACT; MODEL Cited Reference Count: 51 Times Cited: 0 Publisher: JOHN WILEY & SONS INC Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA ISSN: 1532-2882 Subject Category: Computer Science, Information Systems; Information Science & Library Science Abstract: Although the analysis of citations in the scholarly literature is now an established and relatively well understood part of information science, not enough is known about citations that can be found on the Web. In particular, are there new Web types, and if so, are these trivial or potentially useful for studying or evaluating research communication? We sought evidence based upon a sample of 1,577 Web citations of the URLs or titles of research articles in 64 open-access journals from biology, physics, chemistry, and computing. Only 25% represented intellectual impact, from references of Web documents (23%) and other informal scholarly sources (2%). Many of the Web/URL citations were created for general or subject-specific navigation (45%) or for self-publicity (22%). Additional analyses revealed significant disciplinary differences in the types of Google unique Web/URL citations as well as some characteristics of scientific open-access publishing on the Web. We conclude that the Web provides access to a new and different type of citation information, one that may therefore enable us to measure different aspects of research, and the research process in particular; but to obtain good information, the different types should be separated. Addresses: Univ Tehran, Dept Lib & Informat Sci, Tehran, Iran; Wolverhampton Univ, Sch Comp & Informat Technol, Wolverhampton WV1 1ST, England Reprint Address: Kousha, K, Univ Tehran, Dept Lib & Informat Sci, Tehran, Iran. E-mail Address: kkoosha at ut.ac.ir; m.thelwall at wlv.ac.uk Cited References: *CITEBASE, 2006, CIT INF HELP. BARILAN J, 2004, SCIENTOMETRICS, V59, P391. BARILAN J, 2005, INFORM PROCESS MANAG, V41, P973. BARJAK F, 2006, J AM SOC INF SCI TEC, V57, P1350. BORGMAN CL, 2000, WEB KNOWLEDGE FESTSC, P143. BORGMAN CL, 2002, ANNU REV INFORM SCI, V36, P3. BRODY T, 2002, P ACM HYP 2002. BROWN C, 2003, J AM SOC INF SCI TEC, V54, P362. COLE JR, 2000, WEB KNOWLEDGE FESTSC, P281. CRANE D, 1972, INVISIBLE COLL DIFFU. CRONIN B, 1998, J AM SOC INFORM SCI, V49, P1319. CRONIN B, 2003, NEW REV ACAD LIB, V9, P1. FRY J, IN PRESS WEBSEARCH I. FRY J, 2004, P 67 ASIST ANN M, P20. FRY J, 2006, INFORM PROCESS MANAG, V42, P299. GARVEY W, 1979, COMMUNICATION ESSENC. GEISLER E, 2000, METRICS SCI TECHNOLO. GOODRUM AA, 2001, INFORM PROCESS MANAG, V37, P661. HARNAD S, 2000, CURR SCI INDIA, V79, P629. HARRIES G, 2004, J INFORM SCI, V30, P436. HARTER SP, 2000, J AM SOC INFORM SCI, V51, P1159. HURD JM, 2000, J AM SOC INFORM SCI, V51, P1279. JACSO P, 2005, CURR SCI INDIA, V89, P1537. JEPSEN ET, 2004, J AM SOC INF SCI TEC, V55, P1239. KLING R, 1999, J AM SOC INFORM SCI, V50, P890. KLING R, 2000, J AM SOC INFORM SCI, V51, P1306. KLING R, 2003, J AM SOC INF SCI TEC, V54, P47. KOUSHA K, IN PRESS SCIENTOMETR, V74. KOUSHA K, 2004, J INFORM MANAGEMENT, V1, P13. KOUSHA K, 2006, SCIENTOMETRICS, V68, P501. KOUSHA K, 2007, J AM SOC INF SCI TEC, V58, P1055. LANCASTER FW, 1991, INDEXING ABSTRACTING. LEYDESDORFF L, 1989, RES POLICY, V18, P209. LEYDESDORFF L, 1997, J AM SOC INFORM SCI, V48, P418. LIEVROUW LA, 1990, SCHOLARLY COMMUNICAT, P59. MATZAT U, 2004, SOC NETWORKS, V26, P221. MOED HF, 2005, CITATION ANAL RES EV. OPPENHEIM C, 2000, WEB KNOWLEDGE FESTSC, P405. PALMER CL, 2005, J AM SOC INF SCI TEC, V56, P1140. SONDERGAARD TF, 2003, J DOC, V59, P278. THELWALL M, 2003, INFORM RES, V8. THELWALL M, 2003, ONLINE INFORM REV, V27. THELWALL M, 2004, LINK ANAL INFORM SCI. THELWALL M, 2005, ANNU REV INFORM SCI, V39, P81. THELWALL M, 2006, J AM SOC INF SCI TEC, V57, P60. VAUGHAN L, 2003, J AM SOC INF SCI TEC, V54, P1313. VAUGHAN L, 2005, J AM SOC INF SCI TEC, V56, P1075. WILKINSON D, 2003, J INFORMATION SCI, V29, P59. WOUTERS P, 1999, THESIS U AMSTERDAM. WOUTERS P, 2004, J AM SOC INF SCI TEC, V55, P1250. ZUCCALA A, 2006, J AM SOC INF SCI TEC, V57, P1487. From garfield at CODEX.CIS.UPENN.EDU Thu Dec 6 11:06:41 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 6 Dec 2007 11:06:41 -0500 Subject: A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 Message-ID: E-mail Address: simkin at ee.ucla.edu Author(s): Simkin, MV (Simkin, Mikhail V.); Roychowdhury, VP (Roychowdhury, Vwani P.) Title: A mathematical theory of citing Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, 58 (11): 1661-1673 SEP 2007 Language: English Document Type: Article Keywords Plus: NETWORKS; EVOLUTION; MODEL; CRITICALITY; ALLELES; CHANCE Cited Reference Count: 50 Times Cited: 0 Publisher: JOHN WILEY & SONS INC Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA ISSN: 1532-2882 Subject Category: Computer Science, Information Systems; Information Science & Library Science Abstract: Recently we proposed a model in which when a scientist writes a manuscript, he picks up several random papers, cites them, and also copies a fraction of their references. The model was stimulated by our finding that a majority of scientific citations are copied from the lists of references used in other papers. It accounted quantitatively for several properties of empirically observed distribution of citations; however, important features such as power-law distributions of citations to papers published during the same year and the fact that the average rate of citing decreases with aging of a paper were not accounted for by that model. Here, we propose a modified model: When a scientist writes a manuscript, he picks up several random recent papers, cites them, and also copies some of their references. The difference with the original model is the word recent. We solve the model using methods of the theory of branching processes, and find that it can explain the aforementioned features of citation distribution, which our original model could not account for. The model also can explain "sleeping beauties in science;" that is, papers that are little cited for a decade or so and later "awaken" and get many citations. Although much can be understood from purely random models, we find that to obtain a good quantitative agreement with empirical citation data, one must introduce Darwinian fitness parameter for the papers. Addresses: Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA Reprint Address: Simkin, MV, Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA. E-mail Address: simkin at ee.ucla.edu; vwani at ee.ucla.edu Cited References: ALSTROM P, 1988, PHYS REV A, V38, P4905. ASIMOV I, 1958, ONLY TRILLION. BAK P, 1988, PHYS REV A, V38, P364. BAK P, 1993, PHYS REV LETT, V71, P4083. BAK P, 1999, NATURE WORKS SCI SEL. BARABASI AL, 1999, SCIENCE, V286, P509. BENTLEY RA, 2004, P ROY SOC LOND B BIO, V271, P1443. BIANCONI G, 2001, EUROPHYS LETT, V54, P436. BRODY T, 2005, EARLIER WEB USAGE ST. BURRELL QL, 2002, SCIENTOMETRICS, V55, P273. BURRELL QL, 2003, J AM SOC INF SCI TEC, V54, P372. BURRELL QL, 2005, SCIENTOMETRICS, V65, P381. CAVALLISFORZA LL, 1981, CULTURAL TRANSMISSIO. CRONIN B, 1981, J DOC, V37, P16. DOROGOVTSEV SN, 2002, ADV PHYS, V51, P1079. EWENS WJ, 1964, GENETICS, V50, P891. FISHER RA, 1958, GENETICAL THEORY NAT. GARFIELD E, 2004, CURR CONTENTS, V21, P5. GLANZEL W, 1994, SCIENTOMETRICS, V30, P49. GLANZEL W, 2003, SCIENTOMETRICS, V58, P571. GLANZEL W, 2004, SCIENTIST, V18, P8. GUNTHER R, 1996, INT J THEOR PHYS, V35, P395. HAHN MW, 2003, P ROYAL SOC LOND B S. HARRIS TE, 1963, THEORY BRANCHING PRO. HERZOG HA, 1963, P ROYAL SOC LOND B S. KIMURA M, 1964, GENETICS, V49, P725. KLEENE SC, 1952, INTRO METANMATHEMATI. KRAPIVSKY PL, 2001, PHYS REV E 2, V63. LAURITSEN KB, 1996, PHYS REV E, V54, P2483. LEE DS, 2004, SANDPILE AVALANCHE D. MOTYLEV VM, 1989, SCIENTOMETRICS, V15, P97. NAKAMOTO H, 1988, INFORMETRIC 87 88. OTTER R, 1949, ANN MATH STAT, V20, P206. POLLMANN T, 2000, SCIENTOMETRICS, V47, P43. PRICE DJD, 1965, SCIENCE, V149, P510. PRICE DJD, 1976, J AM SOC INFORM SCI, V27, P292. RAAN AFJ, 2004, SCIENTOMETRICS, V59, P467. REDNER S, 1998, EUR PHYS J B, V4, P131. REDNER S, 2004, CITATION STAT MORE C. SIMKIN MV, 2003, COMPLEX SYSTEMS, V14, P269. SIMKIN MV, 2005, ANN IMPROBABKE RES, V1, P24. SIMKIN MV, 2005, SCIENTOMETRICS, V62, P367. SIMKIN MV, 2006, J MATH SOCIOL, V30, P33. SIMON HA, 1955, BIOMETRIKA, V42, P425. SOKAL A, 1998, FASHIONABLE NONSENSE. VANDEWALLE N, 1996, PHYSICA D, V90, P262. VAZQUEZ A, 2001, EUROPHYS LETT, V54, P430. WATSON HW, 1874, J ANTHR I, V4, P138. WEISSTEIN EW, ERF MATHWORLD. WEISSTEIN EW, LAGRANGE EXPANSION M. From garfield at CODEX.CIS.UPENN.EDU Thu Dec 6 11:18:00 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 6 Dec 2007 11:18:00 -0500 Subject: The international performance of the South African academic institutions: a citation assessment, Pouris, A HIGHER EDUCATION 54 (4). OCT 2007. p.501-509 Message-ID: E-mail Address: anastassios.pouris at up.ac.za Author(s): Pouris, A (Pouris, Anastassios) Title: The international performance of the South African academic institutions: a citation assessment Source: HIGHER EDUCATION, 54 (4): 501-509 OCT 2007 Language: English Document Type: Article Cited Reference Count: 15 Times Cited: 0 Publisher: SPRINGER Publisher Address: VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS ISSN: 0018-1560 Subject Category: Education & Educational Research Author Keywords: assessment; citations; evaluation; higher education; rankings; South Africa; universities Abstract: This article reports the results of an investigation to identify the disciplinary strengths and the international standing of the higher education institutions in South Africa. Even though comparative assessments provide valuable information for research administrations, researchers and students such information is not available in South Africa currently. The Essential Science Indicators database of the Institute for Scientific Information is utilized for the investigation and six South African universities are identified to be included in the top 1% of the world's institutions cited in the international scientific literature. The identified institutions are University of Cape Town, University of Pretoria, Orange Free State University, University of Witwatersrand, University of Natal and University of Stellenbosch. Analysis of the scientific disciplines in which the South African institutions meet the threshold requirements for inclusion in the database shows that the country has citation footprints in only nine of the 22 broad scientific disciplines. The article identifies the international standing of the South African universities in the various scientific disciplines, and elaborates on the consequences relevant to higher education and science and technology policy. Addresses: Univ Pretoria, Inst Technol Innovat, ZA-0002 Pretoria, South Africa Reprint Address: Pouris, A, Univ Pretoria, Inst Technol Innovat, Room 4- 4,Engn 2 Bldg,Main Campus, ZA-0002 Pretoria, South Africa. E-mail Address: anastassios.pouris at up.ac.za Cited References: *CHE, 2004, HIGH ED FIRST DEC DE. *DST, 2002, S AFR NAT RES DEV ST. *ED, 1970, NATURE, V227, P219. *THES, 2005, TIM HIGH ED SUPPL. *US NEWS, 2006, AM BEST COLL. BERRY C, 1999, HIGH EDUC REV, V31, P3. BUTLER L, 2003, RES POLICY, V32, P143. GRAVES PE, 1982, AM ECON REV, V72, P1131. HAIQI Z, 1997, INFORM PROCESSING MA, V33, P81. JOHNSON BS, 1997, HIGHER ED POLICY, V10, P297. MOED HF, 1985, RES POLICY, V14, P131. POURIS A, 1989, J AM SOC INFORM SCI, V40, P269. POURIS A, 2003, S AFR J SCI, V99, P425. SHARP W, 2000, BUILDING REPUTATIONS. VANRAAN AFJ, 2005, SCIENTOMETRICS, V62, P133. From garfield at CODEX.CIS.UPENN.EDU Thu Dec 6 11:57:58 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 6 Dec 2007 11:57:58 -0500 Subject: Citation classics in occupational medicine journals, Gehanno, JF; Takahashi, K; Darmoni, S; Weber, J, SCANDINAVIAN JOURNAL OF WORK ENVIRONMENT & HEALTH 33(4). AUG 2007. p.245-251 Message-ID: E-mail Address: jean-francois.gehanno at chu-rouen.fr Author(s): Gehanno, JF (Gehanno, Jean-Francois); Takahashi, K (Takahashi, Ken); Darmoni, S (Darmoni, Stephan); Weber, J (Weber, Jacques) Title: Citation classics in occupational medicine journals Source: SCANDINAVIAN JOURNAL OF WORK ENVIRONMENT & HEALTH, 33 (4): 245-251 AUG 2007 Language: English Document Type: Article Cited Reference Count: 19 Times Cited: 1 Publisher: SCAND J WORK ENV HEALTH Publisher Address: TOPELIUKSENKATU 41A, SF-00250 HELSINKI, FINLAND ISSN: 0355-3140 Subject Category: Public, Environmental & Occupational Health Author Keywords: bibliometrics; numerical data; occupational health; periodical; statistics Keywords Plus: MOST-CITED ARTICLES; ARCHIVES; HEALTH Abstract: Objectives The number of citations an article receives after its publication not only reflects its impact on the scientific community, but also the impact of the institutions or countries in the field studied. In 1987, Garfield introduced the concept of "citation classics" for the best- cited articles. An analysis of top-cited articles coming from journals in the field of occupational medicine (eg, Occupational and Environmental Medicine, Scandinavian Journal of Work, Environment & Health) has not yet been reported. The purpose of this study was to assess whether or not such citation classics exist in this field and to analyze their characteristics. Methods The most frequently cited articles published in the five major journals in occupational medicine were identified using the database of Science Citation Index Expanded. The data were obtained by searching one year and one journal at a time. All of the articles cited more than 100 times were collected and analyzed. Results Among the 15 553 articles published by the five journals since 1949, only 85 articles had been cited more than 100 times. The oldest had been published in 1950 and the latest in 1997. The United Kingdom contributed 28% of the citation classics and the United States or Sweden produced 19%. The most cited article had been cited 979 times. The main topics of articles were metabolism, occupational neoplasms, and work- related musculoskeletal disorders. Conclusions Since the 1980s, Scandinavia and the United States have taken the leadership in the publication of citation classic papers. Nevertheless, according to the level of citations, the influence of literature published in occupational medicine journals remains limited. Addresses: Rouen Univ Hosp, Inst Occupat Med, Rouen, France; Univ Occupat & Environm Hlth, Kitakyushu, Fukuoka 807, Japan; Rouen Univ Hosp, Comp & Networks Dept, Rouen, France; Rouen Univ Hosp, Pedagog Board, Rouen, France Reprint Address: Gehanno, JF, Rouen Univ Hosp, Inst Occupat Med, Rouen, France. E-mail Address: jean-francois.gehanno at chu-rouen.fr ALBERT DM, 1988, ARCH OPHTHALMOL-CHIC, V106, P465. ARONSON JK, 2004, BRIT J CLIN PHARMACO, V58, S699. BALTUSSEN A, 2004, INTENS CARE MED, V30, P902. DARMONI SJ, 2006, BMC MED INFORM DECIS, V6, P7. DUBIN D, 1993, ARCH DERMATOL, V129, P1121. FENTON JE, 2002, J LARYNGOL OTOL, V116, P494. GARFIELD E, 1987, JAMA-J AM MED ASSOC, V257, P52. GEHANNO JF, 2000, OCCUP ENVIRON MED, V57, P706. HALL GM, 1998, BRIT J ANAESTH, V80, P4. KEY JD, 1987, FERTIL STERIL, V47, P910. KEY JD, 1988, ARCH PHYS MED REHAB, V69, P1058. MCCUNNEY RJ, 1992, J OCCUP MED, V34, P279. OLLERTON JE, 2005, J TRAUMA, V58, P364. PALADUGU R, 2002, WORLD J SURG, V26, P1099. PICKNETT T, 1999, J MOL BIOL, V293, P171. RUOTSALAINEN JH, 2006, AM J IND MED, V49, P865. SABIN AB, 1960, JAMA-J AM MED ASSOC, V173, P1521. TERAJIMA K, 2003, ACTA ANAESTH SCAND, V47, P655. THOMAS K, 2003, EUR UROL, V43, P591. Cited Reference Count: 19 Times Cited: 1 Publisher: SCAND J WORK ENV HEALTH Publisher Address: TOPELIUKSENKATU 41A, SF-00250 HELSINKI, FINLAND ISSN: 0355-3140 Subject Category: Public, Environmental & Occupational Health From Steven.Morris at BAKERHUGHES.COM Thu Dec 6 12:07:52 2007 From: Steven.Morris at BAKERHUGHES.COM (Morris, Steven (BA)) Date: Thu, 6 Dec 2007 11:07:52 -0600 Subject: A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 In-Reply-To: A Message-ID: Of all the airy-fairy network growth models that physicists have inflicted upon us, in my opinion this 'reference copying' model takes the cake. Does anyone out there really believe that researchers blindly copy references into their papers? Steve Morris Houston -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Eugene Garfield Sent: Thursday, December 06, 2007 10:07 AM To: SIGMETRICS at listserv.utk.edu Subject: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 E-mail Address: simkin at ee.ucla.edu Author(s): Simkin, MV (Simkin, Mikhail V.); Roychowdhury, VP (Roychowdhury, Vwani P.) Title: A mathematical theory of citing Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, 58 (11): 1661-1673 SEP 2007 Language: English Document Type: Article Keywords Plus: NETWORKS; EVOLUTION; MODEL; CRITICALITY; ALLELES; CHANCE Cited Reference Count: 50 Times Cited: 0 Publisher: JOHN WILEY & SONS INC Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA ISSN: 1532-2882 Subject Category: Computer Science, Information Systems; Information Science & Library Science Abstract: Recently we proposed a model in which when a scientist writes a manuscript, he picks up several random papers, cites them, and also copies a fraction of their references. The model was stimulated by our finding that a majority of scientific citations are copied from the lists of references used in other papers. It accounted quantitatively for several properties of empirically observed distribution of citations; however, important features such as power-law distributions of citations to papers published during the same year and the fact that the average rate of citing decreases with aging of a paper were not accounted for by that model. Here, we propose a modified model: When a scientist writes a manuscript, he picks up several random recent papers, cites them, and also copies some of their references. The difference with the original model is the word recent. We solve the model using methods of the theory of branching processes, and find that it can explain the aforementioned features of citation distribution, which our original model could not account for. The model also can explain "sleeping beauties in science;" that is, papers that are little cited for a decade or so and later "awaken" and get many citations. Although much can be understood from purely random models, we find that to obtain a good quantitative agreement with empirical citation data, one must introduce Darwinian fitness parameter for the papers. Addresses: Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA Reprint Address: Simkin, MV, Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA. E-mail Address: simkin at ee.ucla.edu; vwani at ee.ucla.edu Cited References: ALSTROM P, 1988, PHYS REV A, V38, P4905. ASIMOV I, 1958, ONLY TRILLION. BAK P, 1988, PHYS REV A, V38, P364. BAK P, 1993, PHYS REV LETT, V71, P4083. BAK P, 1999, NATURE WORKS SCI SEL. BARABASI AL, 1999, SCIENCE, V286, P509. BENTLEY RA, 2004, P ROY SOC LOND B BIO, V271, P1443. BIANCONI G, 2001, EUROPHYS LETT, V54, P436. BRODY T, 2005, EARLIER WEB USAGE ST. BURRELL QL, 2002, SCIENTOMETRICS, V55, P273. BURRELL QL, 2003, J AM SOC INF SCI TEC, V54, P372. BURRELL QL, 2005, SCIENTOMETRICS, V65, P381. CAVALLISFORZA LL, 1981, CULTURAL TRANSMISSIO. CRONIN B, 1981, J DOC, V37, P16. DOROGOVTSEV SN, 2002, ADV PHYS, V51, P1079. EWENS WJ, 1964, GENETICS, V50, P891. FISHER RA, 1958, GENETICAL THEORY NAT. GARFIELD E, 2004, CURR CONTENTS, V21, P5. GLANZEL W, 1994, SCIENTOMETRICS, V30, P49. GLANZEL W, 2003, SCIENTOMETRICS, V58, P571. GLANZEL W, 2004, SCIENTIST, V18, P8. GUNTHER R, 1996, INT J THEOR PHYS, V35, P395. HAHN MW, 2003, P ROYAL SOC LOND B S. HARRIS TE, 1963, THEORY BRANCHING PRO. HERZOG HA, 1963, P ROYAL SOC LOND B S. KIMURA M, 1964, GENETICS, V49, P725. KLEENE SC, 1952, INTRO METANMATHEMATI. KRAPIVSKY PL, 2001, PHYS REV E 2, V63. LAURITSEN KB, 1996, PHYS REV E, V54, P2483. LEE DS, 2004, SANDPILE AVALANCHE D. MOTYLEV VM, 1989, SCIENTOMETRICS, V15, P97. NAKAMOTO H, 1988, INFORMETRIC 87 88. OTTER R, 1949, ANN MATH STAT, V20, P206. POLLMANN T, 2000, SCIENTOMETRICS, V47, P43. PRICE DJD, 1965, SCIENCE, V149, P510. PRICE DJD, 1976, J AM SOC INFORM SCI, V27, P292. RAAN AFJ, 2004, SCIENTOMETRICS, V59, P467. REDNER S, 1998, EUR PHYS J B, V4, P131. REDNER S, 2004, CITATION STAT MORE C. SIMKIN MV, 2003, COMPLEX SYSTEMS, V14, P269. SIMKIN MV, 2005, ANN IMPROBABKE RES, V1, P24. SIMKIN MV, 2005, SCIENTOMETRICS, V62, P367. SIMKIN MV, 2006, J MATH SOCIOL, V30, P33. SIMON HA, 1955, BIOMETRIKA, V42, P425. SOKAL A, 1998, FASHIONABLE NONSENSE. VANDEWALLE N, 1996, PHYSICA D, V90, P262. VAZQUEZ A, 2001, EUROPHYS LETT, V54, P430. WATSON HW, 1874, J ANTHR I, V4, P138. WEISSTEIN EW, ERF MATHWORLD. WEISSTEIN EW, LAGRANGE EXPANSION M. From Christina.Pikas at JHUAPL.EDU Thu Dec 6 12:41:05 2007 From: Christina.Pikas at JHUAPL.EDU (Pikas, Christina K.) Date: Thu, 6 Dec 2007 12:41:05 -0500 Subject: A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 In-Reply-To: A<34CD94B89930AD41A35871287ABBC6A0024DD736@MSGHOUMBX01.ent.bhicorp.com> Message-ID: Actually, that was in a paper a couple of years ago posted to ArXiv -- it was the only way to explain the propagation of obvious critical errors; that is, errors that: - would prevent the easy retrieval of the article (switched page numbers) - were fairly uncommon or would be fairly unlikely to happen repeatedly by chance alone Ah, but you're being tongue in cheek? Christina K. Pikas -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Morris, Steven (BA) Sent: Thursday, December 06, 2007 12:08 PM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 Of all the airy-fairy network growth models that physicists have inflicted upon us, in my opinion this 'reference copying' model takes the cake. Does anyone out there really believe that researchers blindly copy references into their papers? Steve Morris Houston -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Eugene Garfield Sent: Thursday, December 06, 2007 10:07 AM To: SIGMETRICS at listserv.utk.edu Subject: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 E-mail Address: simkin at ee.ucla.edu Author(s): Simkin, MV (Simkin, Mikhail V.); Roychowdhury, VP (Roychowdhury, Vwani P.) Title: A mathematical theory of citing Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, 58 (11): 1661-1673 SEP 2007 Language: English Document Type: Article Keywords Plus: NETWORKS; EVOLUTION; MODEL; CRITICALITY; ALLELES; CHANCE Cited Reference Count: 50 Times Cited: 0 Publisher: JOHN WILEY & SONS INC Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA ISSN: 1532-2882 Subject Category: Computer Science, Information Systems; Information Science & Library Science Abstract: Recently we proposed a model in which when a scientist writes a manuscript, he picks up several random papers, cites them, and also copies a fraction of their references. The model was stimulated by our finding that a majority of scientific citations are copied from the lists of references used in other papers. It accounted quantitatively for several properties of empirically observed distribution of citations; however, important features such as power-law distributions of citations to papers published during the same year and the fact that the average rate of citing decreases with aging of a paper were not accounted for by that model. Here, we propose a modified model: When a scientist writes a manuscript, he picks up several random recent papers, cites them, and also copies some of their references. The difference with the original model is the word recent. We solve the model using methods of the theory of branching processes, and find that it can explain the aforementioned features of citation distribution, which our original model could not account for. The model also can explain "sleeping beauties in science;" that is, papers that are little cited for a decade or so and later "awaken" and get many citations. Although much can be understood from purely random models, we find that to obtain a good quantitative agreement with empirical citation data, one must introduce Darwinian fitness parameter for the papers. Addresses: Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA Reprint Address: Simkin, MV, Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA. E-mail Address: simkin at ee.ucla.edu; vwani at ee.ucla.edu Cited References: ALSTROM P, 1988, PHYS REV A, V38, P4905. ASIMOV I, 1958, ONLY TRILLION. BAK P, 1988, PHYS REV A, V38, P364. BAK P, 1993, PHYS REV LETT, V71, P4083. BAK P, 1999, NATURE WORKS SCI SEL. BARABASI AL, 1999, SCIENCE, V286, P509. BENTLEY RA, 2004, P ROY SOC LOND B BIO, V271, P1443. BIANCONI G, 2001, EUROPHYS LETT, V54, P436. BRODY T, 2005, EARLIER WEB USAGE ST. BURRELL QL, 2002, SCIENTOMETRICS, V55, P273. BURRELL QL, 2003, J AM SOC INF SCI TEC, V54, P372. BURRELL QL, 2005, SCIENTOMETRICS, V65, P381. CAVALLISFORZA LL, 1981, CULTURAL TRANSMISSIO. CRONIN B, 1981, J DOC, V37, P16. DOROGOVTSEV SN, 2002, ADV PHYS, V51, P1079. EWENS WJ, 1964, GENETICS, V50, P891. FISHER RA, 1958, GENETICAL THEORY NAT. GARFIELD E, 2004, CURR CONTENTS, V21, P5. GLANZEL W, 1994, SCIENTOMETRICS, V30, P49. GLANZEL W, 2003, SCIENTOMETRICS, V58, P571. GLANZEL W, 2004, SCIENTIST, V18, P8. GUNTHER R, 1996, INT J THEOR PHYS, V35, P395. HAHN MW, 2003, P ROYAL SOC LOND B S. HARRIS TE, 1963, THEORY BRANCHING PRO. HERZOG HA, 1963, P ROYAL SOC LOND B S. KIMURA M, 1964, GENETICS, V49, P725. KLEENE SC, 1952, INTRO METANMATHEMATI. KRAPIVSKY PL, 2001, PHYS REV E 2, V63. LAURITSEN KB, 1996, PHYS REV E, V54, P2483. LEE DS, 2004, SANDPILE AVALANCHE D. MOTYLEV VM, 1989, SCIENTOMETRICS, V15, P97. NAKAMOTO H, 1988, INFORMETRIC 87 88. OTTER R, 1949, ANN MATH STAT, V20, P206. POLLMANN T, 2000, SCIENTOMETRICS, V47, P43. PRICE DJD, 1965, SCIENCE, V149, P510. PRICE DJD, 1976, J AM SOC INFORM SCI, V27, P292. RAAN AFJ, 2004, SCIENTOMETRICS, V59, P467. REDNER S, 1998, EUR PHYS J B, V4, P131. REDNER S, 2004, CITATION STAT MORE C. SIMKIN MV, 2003, COMPLEX SYSTEMS, V14, P269. SIMKIN MV, 2005, ANN IMPROBABKE RES, V1, P24. SIMKIN MV, 2005, SCIENTOMETRICS, V62, P367. SIMKIN MV, 2006, J MATH SOCIOL, V30, P33. SIMON HA, 1955, BIOMETRIKA, V42, P425. SOKAL A, 1998, FASHIONABLE NONSENSE. VANDEWALLE N, 1996, PHYSICA D, V90, P262. VAZQUEZ A, 2001, EUROPHYS LETT, V54, P430. WATSON HW, 1874, J ANTHR I, V4, P138. WEISSTEIN EW, ERF MATHWORLD. WEISSTEIN EW, LAGRANGE EXPANSION M. From garfield at CODEX.CIS.UPENN.EDU Thu Dec 6 12:44:49 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 6 Dec 2007 12:44:49 -0500 Subject: National and institutional productivity and collaboration in Antarctic science: an analysis of 25 years of journal publications(1980-2004), Dastidar, PG, POLAR RESEARCH 26 (2). 2007. p.175-180 Message-ID: E-mail Address: prabirgd11 at rediffmail.com Author(s): Dastidar, PG (Dastidar, Prabir G.) Title: National and institutional productivity and collaboration in Antarctic science: an analysis of 25 years of journal publications (1980- 2004) Source: POLAR RESEARCH, 26 (2): 175-180 2007 Language: English Document Type: Article Cited Reference Count: 7 Times Cited: 0 Publisher: BLACKWELL PUBLISHING Publisher Address: 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND ISSN: 0800-0395 Subject Category: Environmental Sciences; Geography, Physical; Geosciences, Multidisciplinary; Oceanography Author Keywords: Antarctic science; journal articles; knowledge mapping; network analysis; Science Citation Index; scientometrics Abstract: Journal publications on Antarctic science were analysed for a period of 25 years (1980-2004) through a set of scientometrics and network analysis techniques. The study is based on 10 942 records (research articles, review articles, letters, etc.) with the word fragment "antarc*" in the title published in 961 international, peer-reviewed journals and retrieved from Thomson Scientific's Science Citation index database. During the period under investigation, productivity increased threefold and there was a 13-fold increase in journal publications co-written by authors from different countries. The five nations with the highest output were the USA (with 26.7% of the total output), the UK (13.8%), Australia (9.7%), Germany (8.8%) and Italy (6.0%). The top five institutions in terms of journal publications were the British Antarctic Survey (972 publications), the Alfred Wegener Institute of Polar and Marine Research, Germany (475), the Australian Antarctic Division (312), the University of Tasmania, Australia (305), and the National Aeronautics and Space Administration, USA (293). Addresses: Minist Earth Sci, New Delhi 110003, India Reprint Address: Dastidar, PG, Minist Earth Sci, Block No 9 &12,CGO Complex,Lodi Rd, New Delhi 110003, India. E-mail Address: prabirgd11 at rediffmail.com Cited References: COHEN HK, 2002, HDB ANTARTIC TREATY. DASTIDAR PG, 2004, SCIENTOMETRICS, V59, P15. DASTIDAR PG, 2005, CURR SCI INDIA, V89, P1552. DASTIDAR PG, 2005, SCIENTOMETRICS, V65, P199. OCONNOR M, 1978, WRITING SCI PAPERS E. PERSSON O, 2007, BIBEXCEL DOWNLOADED. YANK V, 1999, ANN INTERN MED, V130, P661. From garfield at CODEX.CIS.UPENN.EDU Thu Dec 6 12:49:34 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 6 Dec 2007 12:49:34 -0500 Subject: Modelling of bibliometric approaches and importance of output verification in research performance assessment Van Leeuwen, TN RESEARCH EVALUATION 16 (2). JUN 2007. p.93-105 Message-ID: E-mail Address: leeuwen at cwts.leidenuniv.ni Author(s): Van Leeuwen, TN (Van Leeuwen, Thed N.) Title: Modelling of bibliometric approaches and importance of output verification in research performance assessment Source: RESEARCH EVALUATION, 16 (2): 93-105 JUN 2007 Language: English Document Type: Article Cited Reference Count: 3 Times Cited: 0 Publisher: BEECH TREE PUBLISHING Publisher Address: 10 WATFORD CLOSE,, GUILDFORD GU1 2EP, SURREY, ENGLAND ISSN: 0958-2029 Subject Category: Information Science & Library Science Abstract: This paper presents a model describing the various possibilities in the application of bibliometric techniques in evaluation processes. The model distinguishes between the goals and functions of a bibliometric analysis, and clearly indicates the limits of the various bibliometric approaches. In the so-called top-down or bottom-up approaches, the importance of verification of publication material is indicated. Another important feature of the paper is the description of the problem of the interpretation of the relationship between on the one hand organizational structures, and on the other hand fields of science, in the light of the two main approaches in bibliometric studies. Finally the paper contains a number of case-study examples of the model described. Addresses: Leiden Univ, CWTS, NL-2300 RB Leiden, Netherlands Reprint Address: Van Leeuwen, TN, Leiden Univ, CWTS, Wassenaarseweg 52,POB 9555, NL-2300 RB Leiden, Netherlands. E-mail Address: leeuwen at cwts.leidenuniv.ni Cited References: *NOWT, 2000, REP NETH OBS SCI TEC. VANLEEUWEN TN, 2002, RES PROF DELFT U TEC. VANRAAN AFJ, 2001, SCI STUDIES PROBING, P87. From Steven.Morris at BAKERHUGHES.COM Thu Dec 6 15:20:15 2007 From: Steven.Morris at BAKERHUGHES.COM (Morris, Steven (BA)) Date: Thu, 6 Dec 2007 14:20:15 -0600 Subject: A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 In-Reply-To: A<934BB0B6D8A02C42BC6099FDE8149CCD02739460@aplesjustice.dom1.jhuapl.edu> Message-ID: Christina, Blind copying of references by authors is not a valid assumption. Given that the basic assumption used in the model is wrong, it can't be used to explain propagation of errors - or anything else that follows from it. It's like the Ptolemaic model of the solar system. It explains the position of the Sun and Moon and planets in the sky pretty well. But its basic assumption is that the Earth is at the center of the solar system. An invalid assumption makes the model meaningless, even if it correctly predicts empirical results. Steve Morris. -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Pikas, Christina K. Sent: Thursday, December 06, 2007 11:41 AM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 Actually, that was in a paper a couple of years ago posted to ArXiv -- it was the only way to explain the propagation of obvious critical errors; that is, errors that: - would prevent the easy retrieval of the article (switched page numbers) - were fairly uncommon or would be fairly unlikely to happen repeatedly by chance alone Ah, but you're being tongue in cheek? Christina K. Pikas -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Morris, Steven (BA) Sent: Thursday, December 06, 2007 12:08 PM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 Of all the airy-fairy network growth models that physicists have inflicted upon us, in my opinion this 'reference copying' model takes the cake. Does anyone out there really believe that researchers blindly copy references into their papers? Steve Morris Houston -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Eugene Garfield Sent: Thursday, December 06, 2007 10:07 AM To: SIGMETRICS at listserv.utk.edu Subject: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 E-mail Address: simkin at ee.ucla.edu Author(s): Simkin, MV (Simkin, Mikhail V.); Roychowdhury, VP (Roychowdhury, Vwani P.) Title: A mathematical theory of citing Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, 58 (11): 1661-1673 SEP 2007 Language: English Document Type: Article Keywords Plus: NETWORKS; EVOLUTION; MODEL; CRITICALITY; ALLELES; CHANCE Cited Reference Count: 50 Times Cited: 0 Publisher: JOHN WILEY & SONS INC Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA ISSN: 1532-2882 Subject Category: Computer Science, Information Systems; Information Science & Library Science Abstract: Recently we proposed a model in which when a scientist writes a manuscript, he picks up several random papers, cites them, and also copies a fraction of their references. The model was stimulated by our finding that a majority of scientific citations are copied from the lists of references used in other papers. It accounted quantitatively for several properties of empirically observed distribution of citations; however, important features such as power-law distributions of citations to papers published during the same year and the fact that the average rate of citing decreases with aging of a paper were not accounted for by that model. Here, we propose a modified model: When a scientist writes a manuscript, he picks up several random recent papers, cites them, and also copies some of their references. The difference with the original model is the word recent. We solve the model using methods of the theory of branching processes, and find that it can explain the aforementioned features of citation distribution, which our original model could not account for. The model also can explain "sleeping beauties in science;" that is, papers that are little cited for a decade or so and later "awaken" and get many citations. Although much can be understood from purely random models, we find that to obtain a good quantitative agreement with empirical citation data, one must introduce Darwinian fitness parameter for the papers. Addresses: Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA Reprint Address: Simkin, MV, Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA. E-mail Address: simkin at ee.ucla.edu; vwani at ee.ucla.edu Cited References: ALSTROM P, 1988, PHYS REV A, V38, P4905. ASIMOV I, 1958, ONLY TRILLION. BAK P, 1988, PHYS REV A, V38, P364. BAK P, 1993, PHYS REV LETT, V71, P4083. BAK P, 1999, NATURE WORKS SCI SEL. BARABASI AL, 1999, SCIENCE, V286, P509. BENTLEY RA, 2004, P ROY SOC LOND B BIO, V271, P1443. BIANCONI G, 2001, EUROPHYS LETT, V54, P436. BRODY T, 2005, EARLIER WEB USAGE ST. BURRELL QL, 2002, SCIENTOMETRICS, V55, P273. BURRELL QL, 2003, J AM SOC INF SCI TEC, V54, P372. BURRELL QL, 2005, SCIENTOMETRICS, V65, P381. CAVALLISFORZA LL, 1981, CULTURAL TRANSMISSIO. CRONIN B, 1981, J DOC, V37, P16. DOROGOVTSEV SN, 2002, ADV PHYS, V51, P1079. EWENS WJ, 1964, GENETICS, V50, P891. FISHER RA, 1958, GENETICAL THEORY NAT. GARFIELD E, 2004, CURR CONTENTS, V21, P5. GLANZEL W, 1994, SCIENTOMETRICS, V30, P49. GLANZEL W, 2003, SCIENTOMETRICS, V58, P571. GLANZEL W, 2004, SCIENTIST, V18, P8. GUNTHER R, 1996, INT J THEOR PHYS, V35, P395. HAHN MW, 2003, P ROYAL SOC LOND B S. HARRIS TE, 1963, THEORY BRANCHING PRO. HERZOG HA, 1963, P ROYAL SOC LOND B S. KIMURA M, 1964, GENETICS, V49, P725. KLEENE SC, 1952, INTRO METANMATHEMATI. KRAPIVSKY PL, 2001, PHYS REV E 2, V63. LAURITSEN KB, 1996, PHYS REV E, V54, P2483. LEE DS, 2004, SANDPILE AVALANCHE D. MOTYLEV VM, 1989, SCIENTOMETRICS, V15, P97. NAKAMOTO H, 1988, INFORMETRIC 87 88. OTTER R, 1949, ANN MATH STAT, V20, P206. POLLMANN T, 2000, SCIENTOMETRICS, V47, P43. PRICE DJD, 1965, SCIENCE, V149, P510. PRICE DJD, 1976, J AM SOC INFORM SCI, V27, P292. RAAN AFJ, 2004, SCIENTOMETRICS, V59, P467. REDNER S, 1998, EUR PHYS J B, V4, P131. REDNER S, 2004, CITATION STAT MORE C. SIMKIN MV, 2003, COMPLEX SYSTEMS, V14, P269. SIMKIN MV, 2005, ANN IMPROBABKE RES, V1, P24. SIMKIN MV, 2005, SCIENTOMETRICS, V62, P367. SIMKIN MV, 2006, J MATH SOCIOL, V30, P33. SIMON HA, 1955, BIOMETRIKA, V42, P425. SOKAL A, 1998, FASHIONABLE NONSENSE. VANDEWALLE N, 1996, PHYSICA D, V90, P262. VAZQUEZ A, 2001, EUROPHYS LETT, V54, P430. WATSON HW, 1874, J ANTHR I, V4, P138. WEISSTEIN EW, ERF MATHWORLD. WEISSTEIN EW, LAGRANGE EXPANSION M. From quentinburrell at MANX.NET Thu Dec 6 15:47:47 2007 From: quentinburrell at MANX.NET (Quentin L. Burrell) Date: Thu, 6 Dec 2007 20:47:47 -0000 Subject: A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 Message-ID: The original work was flawed in that there were elementary, yet crucial, arithmetic mistakes that led the authors to conclude that copying was the only explanation. It was most certainly not. Their subsequent work has been less dogmatic, not claiming the result to have been proved or even demonstrated, merely that their model is consistent with observed results. In the JASIST paper they even concede - somewhat begrudgingly! - that there are other approaches. It is "a model" not "the model". Quentin ********************************** Dr Quentin L Burrell Isle of Man International Business School The Nunnery Old Castletown Road Douglas Isle of Man IM2 1QB via United Kingdom www.ibs.ac.im *********************************** ----- Original Message ----- From: "Pikas, Christina K." To: Sent: Thursday, December 06, 2007 5:41 PM Subject: Re: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Actually, that was in a paper a couple of years ago posted to ArXiv -- > it was the only way to explain the propagation of obvious critical > errors; that is, errors that: > - would prevent the easy retrieval of the article (switched page > numbers) > - were fairly uncommon or would be fairly unlikely to happen repeatedly > by chance alone > > Ah, but you're being tongue in cheek? > > > Christina K. Pikas > > > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Morris, Steven (BA) > Sent: Thursday, December 06, 2007 12:08 PM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; > Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION > SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Of all the airy-fairy network growth models that physicists have > inflicted upon us, in my opinion this 'reference copying' model takes > the cake. > > Does anyone out there really believe that researchers blindly copy > references into their papers? > > > Steve Morris > Houston > > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Eugene Garfield > Sent: Thursday, December 06, 2007 10:07 AM > To: SIGMETRICS at listserv.utk.edu > Subject: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; > Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION > SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > E-mail Address: simkin at ee.ucla.edu > > Author(s): Simkin, MV (Simkin, Mikhail V.); Roychowdhury, VP > (Roychowdhury, Vwani P.) > > Title: A mathematical theory of citing > > Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND > TECHNOLOGY, 58 (11): 1661-1673 SEP 2007 > > Language: English > Document Type: Article > > Keywords Plus: NETWORKS; EVOLUTION; MODEL; CRITICALITY; ALLELES; CHANCE > > Cited Reference Count: 50 > Times Cited: 0 > > Publisher: JOHN WILEY & SONS INC > Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA > > ISSN: 1532-2882 > > Subject Category: Computer Science, Information Systems; Information > Science & Library Science > > Abstract: Recently we proposed a model in which when a scientist writes > a manuscript, he picks up several random papers, cites them, and also > copies a fraction of their references. The model was stimulated by our > finding that a majority of scientific citations are copied from the > lists of references used in other papers. It accounted quantitatively > for several > > properties of empirically observed distribution of citations; however, > important features such as power-law distributions of citations to > papers published during the same year and the fact that the average rate > of citing decreases with aging of a paper were not accounted for by that > model. Here, we propose a modified model: When a scientist writes a > manuscript, he picks up several random recent papers, cites them, and > also copies some of their references. The difference with the original > model is the word recent. We solve the model using methods of the theory > of branching processes, and find that it can explain the aforementioned > features of citation distribution, which our original model could not > account for. The model also can explain "sleeping beauties in science;" > that is, papers that are little cited for a decade or so and later > "awaken" and get many citations. Although much can be understood from > purely random models, we find that to obtain a good quantitative > agreement with empirical citation data, one must introduce Darwinian > fitness parameter for the papers. > > Addresses: Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA > 90095 > USA > > Reprint Address: Simkin, MV, Univ Calif Los Angeles, Dept Elect Engn, > Los Angeles, CA 90095 USA. > > E-mail Address: simkin at ee.ucla.edu; vwani at ee.ucla.edu > > Cited References: > ALSTROM P, 1988, PHYS REV A, V38, P4905. > ASIMOV I, 1958, ONLY TRILLION. > BAK P, 1988, PHYS REV A, V38, P364. > BAK P, 1993, PHYS REV LETT, V71, P4083. > BAK P, 1999, NATURE WORKS SCI SEL. > BARABASI AL, 1999, SCIENCE, V286, P509. > BENTLEY RA, 2004, P ROY SOC LOND B BIO, V271, P1443. > BIANCONI G, 2001, EUROPHYS LETT, V54, P436. > BRODY T, 2005, EARLIER WEB USAGE ST. > BURRELL QL, 2002, SCIENTOMETRICS, V55, P273. > BURRELL QL, 2003, J AM SOC INF SCI TEC, V54, P372. > BURRELL QL, 2005, SCIENTOMETRICS, V65, P381. > CAVALLISFORZA LL, 1981, CULTURAL TRANSMISSIO. > CRONIN B, 1981, J DOC, V37, P16. > DOROGOVTSEV SN, 2002, ADV PHYS, V51, P1079. > EWENS WJ, 1964, GENETICS, V50, P891. > FISHER RA, 1958, GENETICAL THEORY NAT. > GARFIELD E, 2004, CURR CONTENTS, V21, P5. > GLANZEL W, 1994, SCIENTOMETRICS, V30, P49. > GLANZEL W, 2003, SCIENTOMETRICS, V58, P571. > GLANZEL W, 2004, SCIENTIST, V18, P8. > GUNTHER R, 1996, INT J THEOR PHYS, V35, P395. > HAHN MW, 2003, P ROYAL SOC LOND B S. > HARRIS TE, 1963, THEORY BRANCHING PRO. > HERZOG HA, 1963, P ROYAL SOC LOND B S. > KIMURA M, 1964, GENETICS, V49, P725. > KLEENE SC, 1952, INTRO METANMATHEMATI. > KRAPIVSKY PL, 2001, PHYS REV E 2, V63. > LAURITSEN KB, 1996, PHYS REV E, V54, P2483. > LEE DS, 2004, SANDPILE AVALANCHE D. > MOTYLEV VM, 1989, SCIENTOMETRICS, V15, P97. > NAKAMOTO H, 1988, INFORMETRIC 87 88. > OTTER R, 1949, ANN MATH STAT, V20, P206. > POLLMANN T, 2000, SCIENTOMETRICS, V47, P43. > PRICE DJD, 1965, SCIENCE, V149, P510. > PRICE DJD, 1976, J AM SOC INFORM SCI, V27, P292. > RAAN AFJ, 2004, SCIENTOMETRICS, V59, P467. > REDNER S, 1998, EUR PHYS J B, V4, P131. > REDNER S, 2004, CITATION STAT MORE C. > SIMKIN MV, 2003, COMPLEX SYSTEMS, V14, P269. > SIMKIN MV, 2005, ANN IMPROBABKE RES, V1, P24. > SIMKIN MV, 2005, SCIENTOMETRICS, V62, P367. > SIMKIN MV, 2006, J MATH SOCIOL, V30, P33. > SIMON HA, 1955, BIOMETRIKA, V42, P425. > SOKAL A, 1998, FASHIONABLE NONSENSE. > VANDEWALLE N, 1996, PHYSICA D, V90, P262. > VAZQUEZ A, 2001, EUROPHYS LETT, V54, P430. > WATSON HW, 1874, J ANTHR I, V4, P138. > WEISSTEIN EW, ERF MATHWORLD. > WEISSTEIN EW, LAGRANGE EXPANSION M. > > From Chaomei.Chen at CIS.DREXEL.EDU Thu Dec 6 16:25:13 2007 From: Chaomei.Chen at CIS.DREXEL.EDU (Chaomei Chen) Date: Thu, 6 Dec 2007 16:25:13 -0500 Subject: A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 In-Reply-To: <34CD94B89930AD41A35871287ABBC6A0024DD737@MSGHOUMBX01.ent.bhicorp.com> Message-ID: I agree with Steve. What is the value of this model? I wouldn't call it 'explaining'. I am amazed that JASIST publishes it. Chaomei Chen ASIS&T Special Interest Group on Metrics wrote on 12/06/2007 03:20:15 PM: > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Christina, > > Blind copying of references by authors is not a valid assumption. > > Given that the basic assumption used in the model is wrong, it can't be > used to explain propagation of errors - or anything else that follows > from it. > > It's like the Ptolemaic model of the solar system. It explains the > position of the Sun and Moon and planets in the sky pretty well. But its > basic assumption is that the Earth is at the center of the solar system. > An invalid assumption makes the model meaningless, even if it correctly > predicts empirical results. > > Steve Morris. > > > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Pikas, Christina K. > Sent: Thursday, December 06, 2007 11:41 AM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; > Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION > SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Actually, that was in a paper a couple of years ago posted to ArXiv -- > it was the only way to explain the propagation of obvious critical > errors; that is, errors that: > - would prevent the easy retrieval of the article (switched page > numbers) > - were fairly uncommon or would be fairly unlikely to happen repeatedly > by chance alone > > Ah, but you're being tongue in cheek? > > > Christina K. Pikas > > > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Morris, Steven (BA) > Sent: Thursday, December 06, 2007 12:08 PM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; > Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION > SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Of all the airy-fairy network growth models that physicists have > inflicted upon us, in my opinion this 'reference copying' model takes > the cake. > > Does anyone out there really believe that researchers blindly copy > references into their papers? > > > Steve Morris > Houston > > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Eugene Garfield > Sent: Thursday, December 06, 2007 10:07 AM > To: SIGMETRICS at listserv.utk.edu > Subject: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; > Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION > SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > E-mail Address: simkin at ee.ucla.edu > > Author(s): Simkin, MV (Simkin, Mikhail V.); Roychowdhury, VP > (Roychowdhury, Vwani P.) > > Title: A mathematical theory of citing > > Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND > TECHNOLOGY, 58 (11): 1661-1673 SEP 2007 > > Language: English > Document Type: Article > > Keywords Plus: NETWORKS; EVOLUTION; MODEL; CRITICALITY; ALLELES; CHANCE > > Cited Reference Count: 50 > Times Cited: 0 > > Publisher: JOHN WILEY & SONS INC > Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA > > ISSN: 1532-2882 > > Subject Category: Computer Science, Information Systems; Information > Science & Library Science > > Abstract: Recently we proposed a model in which when a scientist writes > a manuscript, he picks up several random papers, cites them, and also > copies a fraction of their references. The model was stimulated by our > finding that a majority of scientific citations are copied from the > lists of references used in other papers. It accounted quantitatively > for several > > properties of empirically observed distribution of citations; however, > important features such as power-law distributions of citations to > papers published during the same year and the fact that the average rate > of citing decreases with aging of a paper were not accounted for by that > model. Here, we propose a modified model: When a scientist writes a > manuscript, he picks up several random recent papers, cites them, and > also copies some of their references. The difference with the original > model is the word recent. We solve the model using methods of the theory > of branching processes, and find that it can explain the aforementioned > features of citation distribution, which our original model could not > account for. The model also can explain "sleeping beauties in science;" > that is, papers that are little cited for a decade or so and later > "awaken" and get many citations. Although much can be understood from > purely random models, we find that to obtain a good quantitative > agreement with empirical citation data, one must introduce Darwinian > fitness parameter for the papers. > > Addresses: Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA > 90095 > USA > > Reprint Address: Simkin, MV, Univ Calif Los Angeles, Dept Elect Engn, > Los Angeles, CA 90095 USA. > > E-mail Address: simkin at ee.ucla.edu; vwani at ee.ucla.edu > > Cited References: > ALSTROM P, 1988, PHYS REV A, V38, P4905. > ASIMOV I, 1958, ONLY TRILLION. > BAK P, 1988, PHYS REV A, V38, P364. > BAK P, 1993, PHYS REV LETT, V71, P4083. > BAK P, 1999, NATURE WORKS SCI SEL. > BARABASI AL, 1999, SCIENCE, V286, P509. > BENTLEY RA, 2004, P ROY SOC LOND B BIO, V271, P1443. > BIANCONI G, 2001, EUROPHYS LETT, V54, P436. > BRODY T, 2005, EARLIER WEB USAGE ST. > BURRELL QL, 2002, SCIENTOMETRICS, V55, P273. > BURRELL QL, 2003, J AM SOC INF SCI TEC, V54, P372. > BURRELL QL, 2005, SCIENTOMETRICS, V65, P381. > CAVALLISFORZA LL, 1981, CULTURAL TRANSMISSIO. > CRONIN B, 1981, J DOC, V37, P16. > DOROGOVTSEV SN, 2002, ADV PHYS, V51, P1079. > EWENS WJ, 1964, GENETICS, V50, P891. > FISHER RA, 1958, GENETICAL THEORY NAT. > GARFIELD E, 2004, CURR CONTENTS, V21, P5. > GLANZEL W, 1994, SCIENTOMETRICS, V30, P49. > GLANZEL W, 2003, SCIENTOMETRICS, V58, P571. > GLANZEL W, 2004, SCIENTIST, V18, P8. > GUNTHER R, 1996, INT J THEOR PHYS, V35, P395. > HAHN MW, 2003, P ROYAL SOC LOND B S. > HARRIS TE, 1963, THEORY BRANCHING PRO. > HERZOG HA, 1963, P ROYAL SOC LOND B S. > KIMURA M, 1964, GENETICS, V49, P725. > KLEENE SC, 1952, INTRO METANMATHEMATI. > KRAPIVSKY PL, 2001, PHYS REV E 2, V63. > LAURITSEN KB, 1996, PHYS REV E, V54, P2483. > LEE DS, 2004, SANDPILE AVALANCHE D. > MOTYLEV VM, 1989, SCIENTOMETRICS, V15, P97. > NAKAMOTO H, 1988, INFORMETRIC 87 88. > OTTER R, 1949, ANN MATH STAT, V20, P206. > POLLMANN T, 2000, SCIENTOMETRICS, V47, P43. > PRICE DJD, 1965, SCIENCE, V149, P510. > PRICE DJD, 1976, J AM SOC INFORM SCI, V27, P292. > RAAN AFJ, 2004, SCIENTOMETRICS, V59, P467. > REDNER S, 1998, EUR PHYS J B, V4, P131. > REDNER S, 2004, CITATION STAT MORE C. > SIMKIN MV, 2003, COMPLEX SYSTEMS, V14, P269. > SIMKIN MV, 2005, ANN IMPROBABKE RES, V1, P24. > SIMKIN MV, 2005, SCIENTOMETRICS, V62, P367. > SIMKIN MV, 2006, J MATH SOCIOL, V30, P33. > SIMON HA, 1955, BIOMETRIKA, V42, P425. > SOKAL A, 1998, FASHIONABLE NONSENSE. > VANDEWALLE N, 1996, PHYSICA D, V90, P262. > VAZQUEZ A, 2001, EUROPHYS LETT, V54, P430. > WATSON HW, 1874, J ANTHR I, V4, P138. > WEISSTEIN EW, ERF MATHWORLD. > WEISSTEIN EW, LAGRANGE EXPANSION M. > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From eugene.garfield at THOMSON.COM Thu Dec 6 21:03:35 2007 From: eugene.garfield at THOMSON.COM (Eugene Garfield) Date: Thu, 6 Dec 2007 21:03:35 -0500 Subject: A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 In-Reply-To: <005e01c83849$42804610$0301a8c0@quentin> Message-ID: Dear Quentin; I do not know what mistakes you are referring to. However, I seem to recall that when this theory was first proposed to much fanfare I discovered that the authors did not seem to know anything about how the Science Citation Index is compiled and therefore made the assumption that any of the authors who were listed in SCI as having cited a particular paper, used the same reference when in fact that was not the case. The SCI unification systems may give that impression, but if the system happens to select a variant of the standard citation as the heading, you could easily get the impression that all of the citing authors used the same sequence of characters. Therefore you could erroneously conclude that all the citing authors copied that variant. The only way you can determine whether an erroneous citation was copied is to go to the original citing paper. The effort required is substantial especially for well cited papers. Furthermore, just because someone uses a surrogate paper or review to identify a reference citation does not mean it was not read. It is just a quick and sometimes dirty way to identify a paper you once read and need to cite. Eugene Garfield -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Quentin L. Burrell Sent: Thursday, December 06, 2007 3:48 PM To: SIGMETRICS at LISTSERV.UTK.EDU Subject: Re: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 The original work was flawed in that there were elementary, yet crucial, arithmetic mistakes that led the authors to conclude that copying was the only explanation. It was most certainly not. Their subsequent work has been less dogmatic, not claiming the result to have been proved or even demonstrated, merely that their model is consistent with observed results. In the JASIST paper they even concede - somewhat begrudgingly! - that there are other approaches. It is "a model" not "the model". Quentin ********************************** Dr Quentin L Burrell Isle of Man International Business School The Nunnery Old Castletown Road Douglas Isle of Man IM2 1QB via United Kingdom www.ibs.ac.im *********************************** ----- Original Message ----- From: "Pikas, Christina K." To: Sent: Thursday, December 06, 2007 5:41 PM Subject: Re: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Actually, that was in a paper a couple of years ago posted to ArXiv -- > it was the only way to explain the propagation of obvious critical > errors; that is, errors that: > - would prevent the easy retrieval of the article (switched page > numbers) > - were fairly uncommon or would be fairly unlikely to happen > repeatedly by chance alone > > Ah, but you're being tongue in cheek? > > > Christina K. Pikas > > > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Morris, Steven (BA) > Sent: Thursday, December 06, 2007 12:08 PM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; > Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION > SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Of all the airy-fairy network growth models that physicists have > inflicted upon us, in my opinion this 'reference copying' model takes > the cake. > > Does anyone out there really believe that researchers blindly copy > references into their papers? > > > Steve Morris > Houston > > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Eugene Garfield > Sent: Thursday, December 06, 2007 10:07 AM > To: SIGMETRICS at listserv.utk.edu > Subject: [SIGMETRICS] A mathematical theory of citing, Simkin, MV; > Roychowdhury, VP, JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION > SCIENCE AND TECHNOLOGY 58 (11). SEP 2007. p.1661-1673 > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > E-mail Address: simkin at ee.ucla.edu > > Author(s): Simkin, MV (Simkin, Mikhail V.); Roychowdhury, VP > (Roychowdhury, Vwani P.) > > Title: A mathematical theory of citing > > Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND > TECHNOLOGY, 58 (11): 1661-1673 SEP 2007 > > Language: English > Document Type: Article > > Keywords Plus: NETWORKS; EVOLUTION; MODEL; CRITICALITY; ALLELES; > CHANCE > > Cited Reference Count: 50 > Times Cited: 0 > > Publisher: JOHN WILEY & SONS INC > Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA > > ISSN: 1532-2882 > > Subject Category: Computer Science, Information Systems; Information > Science & Library Science > > Abstract: Recently we proposed a model in which when a scientist > writes a manuscript, he picks up several random papers, cites them, > and also copies a fraction of their references. The model was > stimulated by our finding that a majority of scientific citations are > copied from the lists of references used in other papers. It accounted > quantitatively for several > > properties of empirically observed distribution of citations; however, > important features such as power-law distributions of citations to > papers published during the same year and the fact that the average > rate of citing decreases with aging of a paper were not accounted for > by that model. Here, we propose a modified model: When a scientist > writes a manuscript, he picks up several random recent papers, cites > them, and also copies some of their references. The difference with > the original model is the word recent. We solve the model using > methods of the theory of branching processes, and find that it can > explain the aforementioned features of citation distribution, which > our original model could not account for. The model also can explain > "sleeping beauties in science;" that is, papers that are little cited > for a decade or so and later "awaken" and get many citations. Although > much can be understood from purely random models, we find that to > obtain a good quantitative agreement with empirical citation data, one > must introduce Darwinian fitness parameter for the papers. > > Addresses: Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA > 90095 USA > > Reprint Address: Simkin, MV, Univ Calif Los Angeles, Dept Elect Engn, > Los Angeles, CA 90095 USA. > > E-mail Address: simkin at ee.ucla.edu; vwani at ee.ucla.edu > > Cited References: > ALSTROM P, 1988, PHYS REV A, V38, P4905. > ASIMOV I, 1958, ONLY TRILLION. > BAK P, 1988, PHYS REV A, V38, P364. > BAK P, 1993, PHYS REV LETT, V71, P4083. > BAK P, 1999, NATURE WORKS SCI SEL. > BARABASI AL, 1999, SCIENCE, V286, P509. > BENTLEY RA, 2004, P ROY SOC LOND B BIO, V271, P1443. > BIANCONI G, 2001, EUROPHYS LETT, V54, P436. > BRODY T, 2005, EARLIER WEB USAGE ST. > BURRELL QL, 2002, SCIENTOMETRICS, V55, P273. > BURRELL QL, 2003, J AM SOC INF SCI TEC, V54, P372. > BURRELL QL, 2005, SCIENTOMETRICS, V65, P381. > CAVALLISFORZA LL, 1981, CULTURAL TRANSMISSIO. > CRONIN B, 1981, J DOC, V37, P16. > DOROGOVTSEV SN, 2002, ADV PHYS, V51, P1079. > EWENS WJ, 1964, GENETICS, V50, P891. > FISHER RA, 1958, GENETICAL THEORY NAT. > GARFIELD E, 2004, CURR CONTENTS, V21, P5. > GLANZEL W, 1994, SCIENTOMETRICS, V30, P49. > GLANZEL W, 2003, SCIENTOMETRICS, V58, P571. > GLANZEL W, 2004, SCIENTIST, V18, P8. > GUNTHER R, 1996, INT J THEOR PHYS, V35, P395. > HAHN MW, 2003, P ROYAL SOC LOND B S. > HARRIS TE, 1963, THEORY BRANCHING PRO. > HERZOG HA, 1963, P ROYAL SOC LOND B S. > KIMURA M, 1964, GENETICS, V49, P725. > KLEENE SC, 1952, INTRO METANMATHEMATI. > KRAPIVSKY PL, 2001, PHYS REV E 2, V63. > LAURITSEN KB, 1996, PHYS REV E, V54, P2483. > LEE DS, 2004, SANDPILE AVALANCHE D. > MOTYLEV VM, 1989, SCIENTOMETRICS, V15, P97. > NAKAMOTO H, 1988, INFORMETRIC 87 88. > OTTER R, 1949, ANN MATH STAT, V20, P206. > POLLMANN T, 2000, SCIENTOMETRICS, V47, P43. > PRICE DJD, 1965, SCIENCE, V149, P510. > PRICE DJD, 1976, J AM SOC INFORM SCI, V27, P292. > RAAN AFJ, 2004, SCIENTOMETRICS, V59, P467. > REDNER S, 1998, EUR PHYS J B, V4, P131. > REDNER S, 2004, CITATION STAT MORE C. > SIMKIN MV, 2003, COMPLEX SYSTEMS, V14, P269. > SIMKIN MV, 2005, ANN IMPROBABKE RES, V1, P24. > SIMKIN MV, 2005, SCIENTOMETRICS, V62, P367. > SIMKIN MV, 2006, J MATH SOCIOL, V30, P33. > SIMON HA, 1955, BIOMETRIKA, V42, P425. > SOKAL A, 1998, FASHIONABLE NONSENSE. > VANDEWALLE N, 1996, PHYSICA D, V90, P262. > VAZQUEZ A, 2001, EUROPHYS LETT, V54, P430. > WATSON HW, 1874, J ANTHR I, V4, P138. > WEISSTEIN EW, ERF MATHWORLD. > WEISSTEIN EW, LAGRANGE EXPANSION M. > > Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.22/1111 - Release Date: 11/5/2007 4:36 AM Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.22/1111 - Release Date: 11/5/2007 4:36 AM From Jessica.Shepherd at GUARDIAN.CO.UK Fri Dec 7 01:01:02 2007 From: Jessica.Shepherd at GUARDIAN.CO.UK (Jessica Shepherd) Date: Fri, 7 Dec 2007 06:01:02 +0000 Subject: Jessica Shepherd/Guardian/GNL is out of the office. Message-ID: I will be out of the office starting 07/12/2007 and will not return until 11/12/2007. I will be out of the office between 07/12 and 11/12. For any urgent messages, please contact Sharon Bainbridge on 020 72399943 or Stephanie Kerstein on 020 7239 9559. Many thanks. 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Guardian News & Media Limited A member of Guardian Media Group PLC Registered Office Number 1 Scott Place, Manchester M3 3GG Registered in England Number 908396 From eugene.garfield at THOMSON.COM Fri Dec 7 14:20:17 2007 From: eugene.garfield at THOMSON.COM (Eugene Garfield) Date: Fri, 7 Dec 2007 14:20:17 -0500 Subject: The Effect of open access on citation impact. An analysis of ArXiv's condensed matter section by Henk F. Moed in JASIST November 2007 Message-ID: Y Title: The effect of "Open access" on citation impact: An analysis of ArXiv's condensed matter section Authors: Moed, HF Author Full Names: Moed, Henk F. Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 58 (13): 2047-2054 NOV 2007 Language: English Document Type: Article Abstract: This article statistically analyzes how the citation impact of articles deposited in the Condensed Matter section of the preprint server ArXiv (hosted by Cornell University), and subsequently published in a scientific journal, compares to that of articles in the same journal that were not deposited in the archive. Its principal aim is to further illustrate and roughly estimate the effect of two factors, "early view" and "quality bias," on differences in citation impact between these two sets of papers, using citation data from Thomson Scientific's Web of Science. It presents estimates for a number of journals in the field of condensed matter physics. To discriminate between an "open access" effect and an early view effect, longitudinal citation data were analyzed covering a time period as long as 7 years. Quality bias was measured by calculating ArXiv citation impact differentials at the level of individual authors publishing in a journal, takin! g into account coauthorship. The analysis provided evidence of a strong quality bias and early view effect. Correcting for these effects, there is in a sample of six condensed matter physics journals studied in detail no sign of a general "open access advantage" of papers deposited in ArXiv. The study does provide evidence that ArXiv accelerates citation due to the fact that ArXiv makes papers available earlier rather than makes them freely available. Reprint Address: Moed, HF, Leiden Univ, Ctr Sci & Technol Studies, POB 9555, NL-2300 RB Leiden, Netherlands. Research Institution addresses: Leiden Univ, Ctr Sci & Technol Studies, NL-2300 RB Leiden, Netherlands E-mail Address: moed at cwts.leidenuniv.nl Cited References: DAVIS PM, 2006, SCIENTOMETRICS, V71. EGGHE L, 2000, J AM SOC INFORM SCI, V51, P158. EYSENBACH G, 2006, PLOS BIOL, V4, P692. GARFIELD E, 1972, SCIENCE, V178, P471. HARNAD S, 2004, DLIB MAGAZINE, V10. KURTZ MJ, 2005, INFORM PROCESS MANAG, V41, P1395. MOED HF, 2005, CITATION ANAL RES EV. Cited Reference Count: 7 Times Cited: 0 Publisher: JOHN WILEY & SONS INC; 111 RIVER ST, HOBOKEN, NJ 07030 USA Subject Category: Computer Science, Information Systems; Information Science & Library Science ISSN: 1532-2882 IDS Number: 228PE ________________________________ ________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: From garfield at CODEX.CIS.UPENN.EDU Mon Dec 10 14:33:43 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Mon, 10 Dec 2007 14:33:43 -0500 Subject: Science Citation Index Expanded: The effect of journal editorial policies, Buchanan, RA JOURNAL OF ACADEMIC LIBRARIANSHIP 33 (5). SEP 2007.p.532-539 Message-ID: E-mail Address: buchara at aubum.edu Author(s): Buchanan, RA (Buchanan, Robert A.) Title: Science Citation Index Expanded: The effect of journal editorial policies Source: JOURNAL OF ACADEMIC LIBRARIANSHIP, 33 (5): 532-539 SEP 2007 Language: English Document Type: Article Cited Reference Count: 31 Times Cited: 0 Keywords Plus: PERSISTENCE; STABILITY; ERRORS; IMPACT; URLS Abstract: Citation attributes were found to be strongly associated with the omission of citations from the cited article lists in 603 SCIE records from six chemistry journals. By requiring well-documented citations and by making it easier to identify where one citation ends and the next one begins, journals can help minimize the number of omitted citations from citation databases. Addresses: Auburn Univ, RBD Lib, Auburn, AL 36849 USA Reprint Address: Buchanan, RA, Auburn Univ, RBD Lib, 231 Mell St, Auburn, AL 36849 USA. E-mail Address: buchara at aubum.edu Cited References: *AM CHEM SOC, 1967, HDB AUTH PAP J AM CH, P72. *AM CHEM SOC, 1978, HDB AUTH PAP AM CHEM, P76. *AM I PHYS, 1990, AIP STYLE MAN, P9. *CHEM ABSTR SER, SCIF SCHOL. *I SCI INFORM, SCI CIT IND. BALLARD S, 2006, SEARCHER, V14, P24. BUCHANAN RA, 2006, COLL RES LIBR, V67, P292. CEOTTO M, 2004, J CHEM PHYS, V120, P6356. COGHILL AM, 2006, ACS STYLE GUIDE MANU, P292. DODD JS, 1986, ACS STYLE GUIDE MANU, P184. DODD JS, 1997, ACS STYLE GUIDE MANU, P184. GARFIELD E, 1964, SCIENCE, V144, P649. GARFIELD E, 1974, CURR CONTENTS, P5. GARFIELD E, 1978, CITATION INDEXING TH, P1. GARFIELD E, 1990, CURR CONTENTS, V41, P5. GERMAIN CA, 2000, COLL RES LIBR, V61, P359. GIBSON CL, 2004, TETRAHEDRON, V60, P943. HATHWELL D, 1978, STYLE MANUAL GUIDANC, P8. JORGENSEN WL, 1984, J AM CHEM SOC, V106, P6638. KOEHLER W, 2002, J AM SOC INF SCI TEC, V53, P162. MANN T, 2005, OXFORD GUIDE LIB RES. MOED HF, 1989, J INFORM SCI, V15, P95. MOED HF, 2002, NATURE, V415, P731. MUNAKATA M, 1984, INORG CHEM, V23, P3693. ORPHAN S, 2004, COLL RES LIB NEWS, V65, P643. PACK RT, 1984, J CHEM PHYS, V80, P4940. ROTH DL, 2005, CURR SCI INDIA, V89, P1531. ROUSH WR, 1984, J ORG CHEM, V49, P4332. SCHWERDTFEGER P, 2004, INORG CHEM, V43, P6707. SWEETLAND JH, 1989, LIBR QUART, V59, P291. WREN JD, 2004, BIOINFORMATICS, V20, P668. Publisher: ELSEVIER SCIENCE INC Publisher Address: 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA ISSN: 0099-1333 Subject Category: Information Science & Library Science From garfield at CODEX.CIS.UPENN.EDU Mon Dec 10 15:17:39 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Mon, 10 Dec 2007 15:17:39 -0500 Subject: The determinants of research output and impact: A study of Mexican researchers (Article, English),Gonzalez-Brambila, C; Veloso, FM RESEARCH POLICY 36 (7). SEP 2007. p.1035-1051 ELSEVIER SCIENCE BV, AMSTERDAM Message-ID: E-mail Address: cgonzalez at itam.mx; fveloso at cmu.edu Author(s): Gonzalez-Brambila, C (Gonzalez-Brambila, Claudia); Veloso, FM (Veloso, Francisco M.) Title: The determinants of research output and impact: A study of Mexican researchers Source: RESEARCH POLICY, 36 (7): 1035-1051 SEP 2007 Language: English Document Type: Article Cited Reference Count: 42 Times Cited: 0 Author Keywords: research output and impact; productivity over the life cycle; economics of science; Mexico Keywords Plus: RESEARCH PRODUCTIVITY; SCIENTIFIC PRODUCTIVITY; CUMULATIVE ADVANTAGE; SEX-DIFFERENCES; LIFE-CYCLE; SCIENCE; INEQUALITY; PATENTS; AGE Abstract: This paper uses a unique data set of Mexican researchers to explore the determinants of research output and impact. Our findings confirm a quadratic relationship between age and the number of published papers. However, publishing peaks when researchers are approximately 53 years old, 5 or 10 years later than what prior studies have shown. Overall, the results suggest that age does not have a substantial influence on research output and impact. We also find that reputation matters for the number of citations but not publications. Results also show important heterogeneity across areas of knowledge. Interpretations of other aspects, such as gender, country of PhD, and cohort effect, among others, are also discussed. (C) 2007 Elsevier B.V. All rights reserved. Addresses: Inst Tecnol Autonomo Mexico, Dept Business Adm, Mexico City 01000, DF, Mexico; Carnegie Mellon Univ, Dept Engn & Publ Policy, Pittsburgh, PA 15213 USA; Univ Catolica Portuguesa, Fac Ciencias Econ & Empresariais, P-1649023 Lisbon, Portugal Reprint Address: Gonzalez-Brambila, C, Inst Tecnol Autonomo Mexico, Dept Business Adm, Rio Hondo 1, Mexico City 01000, DF, Mexico. Cited References: *CONACYT, 2001, PROGR ESP CIENC TECH. *CONACYT, 2002, IND ACT CIENT TECHN. *I SCI INF, 2003, NAT CIT REP MEX. *OECD, 2002, AD HOC WORK GROUP. AGRAWAL A, 2002, MANAGE SCI, V48, P44. ALLISON PD, 1974, AM SOCIOL REV, V39, P596. ALLISON PD, 1980, SOC STUD SCI, V10, P163. ALLISON PD, 1982, AM SOCIOL REV, V47, P615. ARORA A, 1998, ANN EC STAT, V49, P163. ARORA A, 1998, IMPACT NSF SUPPORT B. ARUNDEL A, 2001, DOES PROXIMITY MATTE. BECKER GS, 1962, J POLIT ECON, V70, P9. BERNIER C, 1975, CHEM ENG EDUC, P194. BUCHMUELLER TC, 1999, ECON EDUC REV, V14, P65. COLE JR, 1984, ADV MOTIVATION ACHIE, V2, P217. COLE S, 1979, AM J SOCIOL, V84, P958. DELAPENA JA, 2003, ESTADO ACTUAL PROSPE. DIAMOND AM, 1986, J GERONTOL, V41, P520. FOX MF, 2001, SOC STUD SCI, V31, P109. FOX MF, 2006, J TECHNOLOGY TRANSFE, V31, P377. HAUSMAN J, 1984, ECONOMETRICA, V52, P909. HENDERSON R, 1996, RAND J ECON, V27, P32. JONES BF, 2005, 11359 NBER. LAWRENCE PA, 2003, NATURE, V422, P259. LEVIN SG, 1991, AM ECON REV, V81, P114. LONG JS, 1992, SOC FORCES, V71, P159. MADDALA GS, 1983, LIMITED DEPENDENT QU. MERTON RK, 1968, SCIENCE, V159, P56. MERTON RK, 1973, SOCIOLOGY SCI. MERTON RK, 1988, ISIS, V79, P606. NELSON R, 1993, NATL INNOVATION SYST. SCHULTZ TW, 1963, EC VALUE ED. SIMONTON DK, 1988, PSYCHOL BULL, V104, P251. STEPHAN PE, 1996, J ECON LIT, V34, P1199. TRAJTENBERG M, 1990, RAND J ECON, V21, P172. TURNER L, 2003, EXPLAINNING INDIVIDU. WEISS Y, 1982, RES LABOR EC, V5, P157. WOOLDRIDGE JM, 2002, EC ANAL CROSS SECTIO. XIE Y, 1998, AM SOCIOL REV, V63, P847. ZENER C, 1968, ANAL SCI PRODUCTIVIT. ZENER C, 1970, P NAT AC SCI US AM, V66, P18. ZUCKERMAN HA, 1973, SOCIOLOGY SCI THEORE. Publisher: ELSEVIER SCIENCE BV Publisher Address: PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS ISSN: 0048-7333 Subject Category: Management; Planning & Development From garfield at CODEX.CIS.UPENN.EDU Mon Dec 10 15:21:15 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Mon, 10 Dec 2007 15:21:15 -0500 Subject: Opening the box: Comparing EU and US scientific output by scientific field (Article, English),Horta, H; Veloso, FM TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE 74 (8). OCT 2007. p.1334-1356 ELSEVIER SCIENCE INC, NEW YORK Message-ID: E-mail Address: fveloso at cmu.edu Author(s): Horta, H (Horta, Hugo); Veloso, FM (Veloso, Francisco M.) Title: Opening the box: Comparing EU and US scientific output by scientific field Source: TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE, 74 (8): 1334-1356 OCT 2007 Language: English Document Type: Article Cited Reference Count: 52 Times Cited: 0 Author Keywords: scientific productivity; scientific competitiveness; science policy Keywords Plus: SCIENCE-AND-TECHNOLOGY; IMPACT FACTOR; INDICATORS; CITATION Abstract: Recent reports suggest that, during the 1990s, the EU15 overcame the US in scientific output. This paper provides a comprehensive comparative analysis of the evolution of the EU 15 and US scientific output and impact throughout the 1990s, looking at publications and impact trends by scientific field. Results show that changes in scientific production for the two blocks are driven by particular scientific fields which grew or declined at a fast rate during the decade. Throughout this period, the EU 15 had eight fields of science, corresponding to a 13% of the total papers published, growing at a rate faster than 10% in relation to world average, while the US had only four fast growing fields, representing 6% of its total output. The situation was exactly reversed for the decline, with the US having more than doubled the number of scientific fields when compared to the EU 15 declining at a rate faster than 10%. Despite this recent trend, the US maintains a distant leadership in impact across all scientific fields. A detailed analysis of the EU 15 countries shows some convergence in terms of outputs and impact, but considerable differences among countries remain. These reflect the evolution, not only of their science, technology and higher education systems, but also their integration in the international science system. (C) 2007 Elsevier Inc. All rights reserved. Addresses: Carnegie Mellon Univ, Dept Engn & Publ Policy, Pittsburgh, PA 15213 USA; Univ Tecn Lisbon, Inst Super Tecn, Ctr Innovat Technol & Policy Res IN, P-1049001 Lisbon, Portugal; Univ Catolica Portuguesa, Fac Ciencias Econ & Empresariais, Lisbon, Portugal Reprint Address: Veloso, FM, Carnegie Mellon Univ, Dept Engn & Publ Policy, Pittsburgh, PA 15213 USA. Cited References: *BUR IND EC, 1996, AUSTR SCI PERF PUBL. *EUR COMM, 2005, KEY FIG 2005 EUR RES. *EUR COMM, 2006, STUD EC TECHN EV SCI. *OECD, 2002, FRAS MAN PROP STAND. *OECD, 2005, MAIN SCI TECHN IND. *OFF SCI TECHN, 2004, PSA TARG METR UK RES. ADAMS J, 1998, NATURE, V396, P615. BECHER T, 1989, ACAD TRIBES TERRITOR. BECHER T, 2001, ACAD TRIBES TERRITOR. BOURKE P, 1994, CRISIS AUSTR SCI. BRAXTON JM, 1996, HIGHER ED HDB THEORY, V11. BURTON RE, 1960, AM DOC, V11, P18. CALZA L, 1995, NATURE, V374, P492. CHAPMAN AJ, 1989, B BR PSYCHOL SOC, V8, P339. CLARK BR, 1996, MOCKERS MOCKED COMPA. COLEMAN R, 1999, ANAT REC, V257, P54. CONCEICAO P, 2004, CHER 17 ANN C PUBL P. CONCEICAO P, 2004, TECHNOL FORECAST SOC, V71, P553. CONCEICAO P, 2005, INNOVATION ALL LEARN. EDQUIST C, 1993, NATL INNOVATION SYST. FRIEDMAN LM, 2002, AM LAW 20 CENTURY. GARFIELD E, 1998, UNFALLCHIRURG, V101, P413. GAUFFRIAU M, 2005, SCIENTOMETRICS, V64, P85. GIBBONS M, 1994, NEW PRODUCTION KNOWL. GINZBERG E, 1976, EC IMPACT LARGE PUBL. GRILICHES Z, 1998, R D PRODUCTIVITY EC. GRUPP H, 1990, SCIENTOMETRICS, V19, P447. HAGSTROM WO, 1965, SCI COMMUNITY. HAUSER J, 1998, EUROPEAN MANAGEMENT, V16, P517. HOLLANDERS H, 2006, EUR COMM GLOB INN SC. JOHNSON B, 1992, NATL SYSTEMS INNOVAT. KING DA, 2004, NATURE, V430, P310. KOZA MP, 1995, ORGAN SCI, V6, P1. LABAND DN, 1994, J POLIT ECON, V102, P194. LEYDESDORFF L, 2005, CURR SCI INDIA, V89, P1510. LOCKETT MW, 1989, LIBR INFORM SCI RES, V11, P21. MAY RM, 1997, SCIENCE, V275, P793. MERTON RK, 2004, TRAVELS ADVENTURES S. MOED HF, 1987, MEASUREMENT RES PERF. MOED HF, 1995, SCIENTOMETRICS, V33, P381. MONASTERSKY R, 2005, CHRON HIGHER EDUC, V52, A12. NONAKA I, 2003, INT HDB INNOVATION. OSAREH F, 2000, SCIENTOMETRICS, V48, P427. PRICE DJD, 1964, SCI SINCE BABYLON. PRICE DJD, 1986, LITTLE SCI BIG SCI. REISS T, 2004, SCI PUBL POLICY, V31, P344. SAPER CB, 1999, J COMP NEUROL, V411, P1. SHELTON RD, 2004, SCIENTOMETRICS, V60, P353. WALLEY B, 1986, UNCOVERING 3 WORLD S, V17, P186. WHITLEY R, 1984, INTELLECTUAL SOCIAL. WOOD F, 1989, HIGH ED RES DEV, V8, P243. ZIMAN J, 2000, REAL SCI. Publisher: ELSEVIER SCIENCE INC Publisher Address: 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA ISSN: 0040-1625 Subject Category: Business; Planning & Development From garfield at CODEX.CIS.UPENN.EDU Mon Dec 10 15:41:54 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Mon, 10 Dec 2007 15:41:54 -0500 Subject: Open access scientometrics and the UK research assessment exercise (Article, English),Harnad, S PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II. 2007. p.27-33 Message-ID: Email: harnad at ecs.soton.ac.uk TITLE: Open access scientometrics and the UK research assessment exercise (Article, English) AUTHOR: Harnad, S SOURCE: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II. 2007. p.27-33 INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI, LEUVEN SEARCH TERM(S): GARFIELD E rauth; SCIENTOMETRIC* item_title; GARFIELD E SCIENCE 122:108 1955 KEYWORDS: open access; research assessment exercise; united kingdom ABSTRACT: Scientometric predictors of research performance need to be validated by showing that they have a high correlation with the external criterion they are trying to predict. The UK Research Assessment Exercise (RAE) together with the growing movement toward making the full- texts of research articles freely available on the web offer a unique opportunity to test and validate a wealth of old and new scientometric predictors, through multiple regression analysis: Publications, journal impact factors, citations, co-citations, citation chronometrics (age, growth, latency to peak, decay rate), hub/authority scores, h-index, prior funding, student counts, co-authorship scores, endogamy/exogamy, textual proximity, download/co-downloads and their chronometrics, etc. can all be tested and validated jointly, discipline by discipline, against their RAE panel rankings in the forthcoming parallel panel-based and metric RAE in 2008. The weights of each predictor can be calibrated to maximize the joint correlation with the rankings. Open Access Scientometrics will provide powerful new means of navigating, evaluating, predicting and analyzing the growing Open Access database, as well as powerful incentives for making it grow faster. From loet at LEYDESDORFF.NET Tue Dec 11 04:38:03 2007 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Tue, 11 Dec 2007 10:38:03 +0100 Subject: Institutional collaboration analysis in scientific publishing Message-ID: InstColl.exe for Institutional Collaboration Analysis This program enables one to generate a representation of the institutional coauthorship relations in a document set in terms of the participating units. Input is a set saved using ISI's Web of Science, and outputs are: 1. cosine.dat provides an input file for Pajek as a visual representation of the institutional collaboration network within this set. The matrix is normalized using the cosine. 2. coocc.dat and matrix.dbf are the files which underly cosine.dat. Coocc.dat is the file before normalization; and matrix.dbf the asymmetrical data matrix. The latter file can be used for statistical analysis in SPSS, the former for graph-analytical analysis using UCINet or Pajek. 3. Like ISI.EXE, the program InstColl.EXE produces four databases containing the information in the original input set in relational format: au.dbf with the authors; cs.dbf with the address ("corporate sources"); core.dbf with information which is unique for each record (e.g., the title); and cr.dbf containing the cited references. The files are linked through the numbers in core.dbf. If one needs only these files, one is advised to use ISI.EXE, since the computation of the cosine is computer intensive, and therefore time-consuming. The routine creating the matrix and the cosine-normalized output uses the names of institutions in the first subfield of the corporate addresses (in file cs.dbf) as variable names, and the records in core.dbf as the cases (rows). The number of documents is unlimited; the number of institutional addresses is limited to 1024. The institutional names can be edited in the output files using an ASCII editor (e.g., Notepad). _____ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR) Kloveniersburgwal 48, 1012 CX Amsterdam loet at leydesdorff.net ; http://www.leydesdorff.net/ Visiting Professor, ISTIC, Beijing, 2007-2010; Honorary Fellow SPRU, 2007-2010 Now available: The Knowledge-Based Economy: Modeled, Measured, Simulated, 385 pp.; US$ 18.95; The Self-Organization of the Knowledge-Based Society ; The Challenge of Scientometrics -------------- next part -------------- An HTML attachment was scrubbed... URL: From harnad at ECS.SOTON.AC.UK Tue Dec 11 07:46:49 2007 From: harnad at ECS.SOTON.AC.UK (Stevan Harnad) Date: Tue, 11 Dec 2007 12:46:49 +0000 Subject: Scientometric Ranking of Research Productivity and Impact Message-ID: Still a primitive tool (and based mostly on Scopus), but Scimago http://www.scimagojr.com/ is yet another hint of the enormous latent scientometric potential that is waiting to open up for us -- if only we open up the data that we ourselves are providing -- (by mandating OA)! (Sample Scimago, and then also sample Citebase http://citebase.eprints.org/, and exercise a little combinatory imagination.) (Thanks to posting by Peter Suber in OA News.) Stevan Harnad AMERICAN SCIENTIST OPEN ACCESS FORUM: http://amsci-forum.amsci.org/archives/American-Scientist-Open-Access-Forum.html http://www.ecs.soton.ac.uk/~harnad/Hypermail/Amsci/ UNIVERSITIES and RESEARCH FUNDERS: If you have adopted or plan to adopt an policy of providing Open Access to your own research article output, please describe your policy at: http://www.eprints.org/signup/sign.php http://openaccess.eprints.org/index.php?/archives/71-guid.html http://openaccess.eprints.org/index.php?/archives/136-guid.html OPEN-ACCESS-PROVISION POLICY: BOAI-1 ("Green"): Publish your article in a suitable toll-access journal http://romeo.eprints.org/ OR BOAI-2 ("Gold"): Publish your article in an open-access journal if/when a suitable one exists. http://www.doaj.org/ AND in BOTH cases self-archive a supplementary version of your article in your own institutional repository. http://www.eprints.org/self-faq/ http://archives.eprints.org/ http://openaccess.eprints.org/ From garfield at CODEX.CIS.UPENN.EDU Tue Dec 11 09:36:36 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Tue, 11 Dec 2007 09:36:36 -0500 Subject: Garfield, Eugene, From the science of science to scientometrics. Visualizing the history of science with HistCite software Editor(s): TorresSalinas, D; Moed, HF PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF ISSI, VOLS I AND II 21-26, 2007 Message-ID: Email: garfield at codex.cis.upenn.edu URL: http://garfield.library.upenn.edu/papers/issispain2007.pdf Author(s): Garfield, Eugene Title: From the science of science to scientometrics. Visualizing the history of science with HistCite software Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 21-26, 2007 Language: English Document Type: Article Cited Reference Count: 15 Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: history of scientometrics; etymology of science; Derek JD Price; V. V. Nalimov; J. D. Bernal; science of science; HistCite; algorithm; historiography; bibliometrics KeyWords Plus: DIMENSION Abstract: While ISSI was founded in 1993, scientometrics and bibliometrics are now at least half a century old. Indeed, the field can be traced to early quantitative studies in the early 20(th) Century. In the thirties, it evolved to the "science of science." The publication of J. D. Bernal's Social Function of Science in 1939 was a key transition point but the field lay dormant until after World War II, when DJD Price's books Science Since Babylon in and Little Science, Big Science in were published in1961 and 1963. His role as the "father of scientometrics" is clearly evident by using the HislCite software (www.HistCite.com ) to visualize his impact as well as the subsequent impact of the journal Scientometrics on the growth of the field. Scientometrics owes its name to V. V. Nalimov, the author of Naukometriya, and to Tibor Braun who adapted the neologism for the journal. The primordial paper on citation indexing by Garfield which appeared in Science 1955 became a bridge between Bernal and Price. The timeline for the evolution of scientometrics is demonstrated by a HistCite tabulation of the ranked citation index of all the 100,000 references cited in the 3,000 papers citing Price. Addresses: Thomson ISI, Philadelphia, PA 19104 USA. Cited References: BENSMAN SJ, IN PRESS SCIENTOMETR BUSH V, 1945, ATLANTIC MONTHLY, V176, P101 DEREK PJ, 1965, SCIENCE, V149, P510 GARFIELD E, 1955, SCIENCE, V122, P108 GARFIELD E, 1964, SCIENCE, V144, P649 MERTON RK, 1986, FOREWOOD LITTLE SCI NALIMOV VV, 1969, NAUKOMETRIYA IZUCHEM PRICE DJD, 1956, DISCOVERY, V17, P240 PRICE DJD, 1963, LITTLE SCI BIG SCI PRICE DJD, 1975, SCI SINCE BABYLON PRICE DJD, 1976, SCI SINCE BABYLON PRICE DJD, 1980, ESSAYS INFORM SCI, V3 PRICE DJD, 1983, CURR CONTENTS, P28 PRITCHARD A, 1969, J DOC, V25, P348 TUKEY JW, 1962, SCIENCE, V138, P781 Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM From garfield at CODEX.CIS.UPENN.EDU Tue Dec 11 09:50:14 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Tue, 11 Dec 2007 09:50:14 -0500 Subject: Gehanno, JF (Gehanno, Jean-Francois); Takahashi, K (Takahashi, Ken); Darmoni, S (Darmoni, Stephan); Weber, J (Weber, Jacques), Citation classics in occupational medicine journals, SCANDINAVIAN JOURNAL OF WORK ENVIRONMENT & HEALTH, 33 (4): 245-251 AUG 2007 Message-ID: E-mail Address: jean-francois.gehanno at chu-rouen.fr Author(s): Gehanno, JF (Gehanno, Jean-Francois); Takahashi, K (Takahashi, Ken); Darmoni, S (Darmoni, Stephan); Weber, J (Weber, Jacques) Title: Citation classics in occupational medicine journals Source: SCANDINAVIAN JOURNAL OF WORK ENVIRONMENT & HEALTH, 33 (4): 245-251 AUG 2007 Language: English Document Type: Article Cited Reference Count: 19 Times Cited: 1 Author Keywords: bibliometrics; numerical data; occupational health; periodical; statistics Keywords Plus: MOST-CITED ARTICLES; ARCHIVES; HEALTH Abstract: Objectives The number of citations an article receives after its publication not only reflects its impact on the scientific community, but also the impact of the institutions or countries in the field studied. In 1987, Garfield introduced the concept of "citation classics" for the best- cited articles. An analysis of top-cited articles coming from journals in the field of occupational medicine (eg, Occupational and Environmental Medicine, Scandinavian Journal of Work, Environment & Health) has not yet been reported. The purpose of this study was to assess whether or not such citation classics exist in this field and to analyze their characteristics. Methods The most frequently cited articles published in the five major journals in occupational medicine were identified using the database of Science Citation Index Expanded. The data were obtained by searching one year and one journal at a time. All of the articles cited more than 100 times were collected and analyzed. Results Among the 15 553 articles published by the five journals since 1949, only 85 articles had been cited more than 100 times. The oldest had been published in 1950 and the latest in 1997. The United Kingdom contributed 28% of the citation classics and the United States or Sweden produced 19%. The most cited article had been cited 979 times. The main topics of articles were metabolism, occupational neoplasms, and work- related musculoskeletal disorders. Conclusions Since the 1980s, Scandinavia and the United States have taken the leadership in the publication of citation classic papers. Nevertheless, according to the level of citations, the influence of literature published in occupational medicine journals remains limited. Addresses: Rouen Univ Hosp, Inst Occupat Med, Rouen, France; Univ Occupat & Environm Hlth, Kitakyushu, Fukuoka 807, Japan; Rouen Univ Hosp, Comp & Networks Dept, Rouen, France; Rouen Univ Hosp, Pedagog Board, Rouen, France Reprint Address: Gehanno, JF, Rouen Univ Hosp, Inst Occupat Med, Rouen, France. E-mail Address: jean-francois.gehanno at chu-rouen.fr Cited References: ALBERT DM, 1988, ARCH OPHTHALMOL-CHIC, V106, P465. ARONSON JK, 2004, BRIT J CLIN PHARMACO, V58, S699. BALTUSSEN A, 2004, INTENS CARE MED, V30, P902. DARMONI SJ, 2006, BMC MED INFORM DECIS, V6, P7. DUBIN D, 1993, ARCH DERMATOL, V129, P1121. FENTON JE, 2002, J LARYNGOL OTOL, V116, P494. GARFIELD E, 1987, JAMA-J AM MED ASSOC, V257, P52. GEHANNO JF, 2000, OCCUP ENVIRON MED, V57, P706. HALL GM, 1998, BRIT J ANAESTH, V80, P4. KEY JD, 1987, FERTIL STERIL, V47, P910. KEY JD, 1988, ARCH PHYS MED REHAB, V69, P1058. MCCUNNEY RJ, 1992, J OCCUP MED, V34, P279. OLLERTON JE, 2005, J TRAUMA, V58, P364. PALADUGU R, 2002, WORLD J SURG, V26, P1099. PICKNETT T, 1999, J MOL BIOL, V293, P171. RUOTSALAINEN JH, 2006, AM J IND MED, V49, P865. SABIN AB, 1960, JAMA-J AM MED ASSOC, V173, P1521. TERAJIMA K, 2003, ACTA ANAESTH SCAND, V47, P655. THOMAS K, 2003, EUR UROL, V43, P591. Publisher: SCAND J WORK ENV HEALTH Publisher Address: TOPELIUKSENKATU 41A, SF-00250 HELSINKI, FINLAND ISSN: 0355-3140 Subject Category: Public, Environmental & Occupational Health From garfield at CODEX.CIS.UPENN.EDU Tue Dec 11 10:06:37 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Tue, 11 Dec 2007 10:06:37 -0500 Subject: A critical view of the h-index: observations based on a practical application, Costas R (Costas, Rodrigo), Bordons M (Bordons, Maria), PROFESIONAL DE LA INFORMACION 16 (5): 427-432 SEP-OCT 2007 Message-ID: Email: rodrigo.costas at cindoc.csic.es Author(s): Costas, R (Costas, Rodrigo); Bordons, M (Bordons, Maria) Title: A critical view of the h-index: observations based on a practical application Source: PROFESIONAL DE LA INFORMACION, 16 (5): 427-432 SEP-OCT 2007 Language: Spanish Document Type: Article Cited Reference Count: 26 Times Cited: 0 Author Keywords: h-index; citation analysis; bibliometric indicators; research evaluation Keywords Plus: BIBLIOMETRIC INDICATORS; SCIENCE POLICY; PUBLICATION Abstract: The possible use of h-index in the evaluation of individual researchers has raised great concern among policy-makers and scientists themselves. Research is needed to determine the advantages and limitations of this new indicator A study of publications in the Web of Science, 1994- 2004, applied the h-index to researchers working in the natural resources area at the Spanish Council for Scientific Research (CSIC). One of the findings presented is that the h-index detected the most outstanding scientists; however scientists who follow a selective publication strategy, publishing a relatively low number of documents that are frequently cited, could be penalized for this approach in h-index based evaluations. The authors emphasize the need to avoid the specific limitations of each indicator by combining indicators in the evaluation process. Addresses: CSIC, Cindoc, Madrid 28002, Spain Reprint Address: Costas, R, CSIC, Cindoc, Joaquin Costa 22, Madrid 28002, Spain. Cited References: 2006, PROFESIONAL INFORM, V15, P304. 2007, PROFESIONAL INFORM, V16, P47. BALL P, 2005, NATURE, V436, P900. BATISTA PD, 2006, SCIENTOMETRICS, V68, P179. BORNMANN L, 2007, IN PRESS J AM SOC IN. COLE S, 1967, AM SOCIOL REV, V32, P377. COSTAS R, 2005, RES EVALUAT, V14, P110. COSTAS R, 2007, IN PRESS J INFORM. EGGHE L, 2006, SCIENTOMETRICS, V69, P131. GARFIELD E, 1979, SCIENTOMETRICS, V1, P359. GLANZEL W, 2006, SCIENTOMETRICS, V67, P263. GLANZEL W, 2006, SCIENTOMETRICS, V67, P315. HIRSCH JE, 2005, P NAT AC SCI US AM, V102. IGLESIAS JE, 2006, ARXIV. IMPERIAL J, 2005, UTILIDAD INDICE HIRS. JIN BH, 2007, CHINESE SCI BULL, V52, P855. KELLY CD, 2006, TRENDS ECOL EVOL, V21, P167. LEHMANN S, 2005, ARXIV. LEWISON G, 1999, RES EVALUAT, V8, P47. MARTIN BR, 1996, SCIENTOMETRICS, V36, P343. MOED HF, 2000, SCIENTOMETRICS, V47, P323. PURVIS A, TRENDS ECOLOGY EVOLU, V21, P422. SCHREIBER M, 2007, EPL, V78. SIDIROPOULOS A, 2007, IN PRESS SCIENTOMETR, V72. VANLEEUWEN TN, 2003, SCIENTOMETRICS, V57, P257. VANRAAN AFJ, 2006, SCIENTOMETRICS, V67, P491. Publisher: EPI Publisher Address: APARTADO 32 280, BARCELONA, 08080, SPAIN ISSN: 1386-6710 Subject Category: Information Science & Library Science From felix at UGR.ES Tue Dec 11 12:46:44 2007 From: felix at UGR.ES (=?iso-8859-1?Q?F=E9lix_de_Moya_Aneg=F3n?=) Date: Tue, 11 Dec 2007 18:46:44 +0100 Subject: SJR portal again Message-ID: Appreciated colleague, We have incorporated two new functionalities to the Scimago Journal & Country Rank (www.scimagojr.com): 1. Compare function: This tool permit choose until four countries and one scientific indicator to represent the comparison among them. 2. Map Generator function: This tool build scientific maps based in subject areas cocitation. The user can select the country and period. In the next future we will add one compare journal function and the generation of subject category maps. Our goal is to improve the SJR portal incorporating new indicators and representations. As always, any suggestion will be welcomed. ******************************* F?lix de Moya Aneg?n http://www.ugr.es/~felix/ Grupo SCIMAGO http://www.scimago.es http://www.atlasofscience.net http://www.scimagojr.com/ Universidad de Granada ******************************* From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 11:14:39 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 11:14:39 -0500 Subject: Full-text publications in peer-reviewed journals derived from presentations at two ISSI conferences (Article, English),Aleixandre-Benavent, R; et al, PROCEEDINGS OF ISSI 2007: 11TH INTL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.37-44 Message-ID: Email address: Rafael.Aleixandre at uv.es Author(s): Aleixandre-Benavent, R (Aleixandre-Benavent, Rafael); Gonzalez- Alcaide, G (Gonzalez-Alcaide, Gregorio); Miguel-Dasit, A (Miguel-Dasit, Alberto); Navarro-Molina, C (Navarro-Molina, Carolina); Valderrama-Zurian, JC (Valderrama-Zurian, Juan Carlos) Title: Full-text publications in peer-reviewed journals derived from presentations at two ISSI conferences Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 37-44, 2007 Cited Reference Count: 23 Language: English Document Type: Article Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: ISSI conferences; derived publications; publication rate KeyWords Plus: SUBSEQUENT PUBLICATION; ABSTRACTS; MEETINGS; CITATION; PUBLISH; RATES; FATE Abstract: The purpose of this study is to analyse the bibliometric characteristics of the full presentations and posters at the 5th and 8th Conferences of the International Society for Scientometrics and Informetrics (ISSI), held in 1995 and 2001 respectively, which were subsequently published in peer-reviewed journals covered by the Science Citation Index, Social Science Citation Index and LISA databases. 25.1% of all the papers presented at the two conferences were published, with the full papers of the 8th Conference attaining the highest percentage. Scientometrics was the journal that published the highest proportions. This relatively low overall rate of publication deprives the scientific community of potentially interesting results and points up the role of the ISSI Conference proceedings as a primary source of information. Addresses: Univ Valencia, CSIC, Inst Hist Ciencia & Documentat Lopez Pinero, Valencia, E-46003 Spain. Cited References: ALEIXANDRE R, 2004, SCIENTOMETRICS, V59, P321 BIRD JE, 1999, SCIENTOMETRICS, V46, P287 BYDDER SA, 2004, AUSTRALAS RADIOL, V48, P25 BYERLY WG, 2000, ANN PHARMACOTHER, V34, P1123 CALLAHAM M, 2002, JAMA-J AM MED ASSOC, V287, P2847 CARROLL AE, 2003, PEDIATRICS, V112, P1238 DAVIS M, 2001, P 8 C SCI INF SYDN FENNEWALD J, 2005, COLL RES LIBR, V66, P517 GANDHI SG, 2004, J SOC GYNECOL INVEST, V11, P526 GLANZEL W, 2002, SCIENTOMETRICS, V54, P75 JUZYCH MS, 1993, INVEST OPHTHALMOL, V34, P879 KOENING MED, 1995, 5 INT C INT SOC SCI KRZYZANOWSKA MK, 2003, JAMA-J AM MED ASSOC, V290, P495 MARX WF, 1999, AM J NEURORADIOL, V20, P1173 MIGUELDASIT A, 2000, EUR RADIOL, V16, P445 MIGUELDASIT A, 2006, SCIENTOMETRICS, V66, P467 NGUYEN V, 1998, J ORTHOP TRAUMA, V12, P457 RIORDAN FAI, 2000, ARCH DIS CHILD, V83, P524 SPRAGUE S, 2003, J BONE JOINT SURG A, V85, P158 TIMMER A, 2002, BMC MED RES METHODOL, V2, P7 VONELM E, 2003, BMC MED RES METHODOL, V3, P12 WEBER EJ, 1998, JAMA-J AM MED ASSOC, V280, P257 YENTIS SM, 1993, CAN J ANAESTH, V40, P632 Cited Reference Count: 23 Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 11:20:13 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 11:20:13 -0500 Subject: Origins of measures of journal impact: Historical contingencies and their consequences on current use (Article, English),Archambault, E; Lariviere, V,PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.45-51 Message-ID: Email address: eric.archambault at science-metrix.com Author(s): Archambault, E (Archambault, Eric); Lariviere, V (Lariviere, Vincent) Title: Origins of measures of journal impact: Historical contingencies and their consequences on current use Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 45-51, 2007 Language: English Document Type: Article Cited Reference Count: 32 Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: journal impact factor; history; contingencies KeyWords Plus: SUBJECT CATEGORIES; SCIENCE; PERFORMANCE Abstract: This paper examines the genesis of journal impact measures and how their evolution culminated in the journal impact factor (JIF) produced by the Institute for Scientific Information. The paper shows how the form of the JIF, which is the result of historically contingent choices rather than a carefully chosen and tested set of features, affected its subsequent use, misuse, and manipulation by researchers, journal editors, and bibliometricians. Addresses: Science Metrix, Montreal, PQ H2H 2B5 Canada. Cited References: ALLEN ES, 1929, SCIENCE, V70, P592 BRODMAN E, 1944, B MED LIB ASS, V32, P479 BROWN CH, 1956, ACRL MONOGRAPH, V16 CUNNINGHAM ER, 1935, B MED LIB ASS, V24, P64 FASSOULAKI A, 2002, ACTA ANAESTH SCAND, V46, P902 FUYUNO I, 2006, NATURE, V441, P792 GARFIELD E, 1955, SCIENCE, V122, P108 GARFIELD E, 1963, AM DOC, V14, P195 GARFIELD E, 2006, JAMA-J AM MED ASSOC, V295, P90 GLANZEL W, 2002, SCIENTOMETRICS, V53, P171 GREGORY J, 1937, B MED LIBR ASSOC, V25, P172 GROSS PLK, 1931, SCIENCE, V73, P660 HACKH I, 1936, B MED LIB ASS, V25, P109 HENKLE HH, 1938, B MED LIBR ASSOC, V27, P139 HUTH EJ, 2001, CROAT MED J, V42, P14 LINDSEY D, 1989, SCIENTOMETRICS, V15, P189 MARTYN J, 1968, EVALUATION BRIT SCI MCNEELY JK, 1930, SCIENCE, V72, P81 MOED HF, 1995, J AM SOC INFORM SCI, V46, P461 OPTHOF T, 1997, CARDIOVASC RES, V33, P1 PUDOVKIN AI, 2004, P ASIST ANNU, V41, P507 RAISIG LM, 1960, SCIENCE, V131, P1417 RAMIREZ AM, 2000, SCIENTOMETRICS, V47, P3 SCHUBERT A, 1996, SCIENTOMETRICS, V36, P311 SCHWARTZ S, 1996, SCIENTOMETRICS, V35, P119 SEGLEN PO, 1992, J AM SOC INFORM SCI, V43, P628 SEGLEN PO, 1997, BRIT MED J, V314, P497 SEN BK, 1992, SCIENTOMETRICS, V23, P31 SMITH R, 1997, BRIT MED J, V314, P463 SOMBATSOMPOP N, 2005, SCIENTOMETRICS, V65, P293 VANLEEUWEN TN, 2001, CORTEX, V37, P607 WESTBROOK JH, 1960, SCIENCE, V132, P1229 Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 11:35:55 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 11:35:55 -0500 Subject: The lifespan of "Informetrics" on the web: an eight year study (1998-2006), Bar-Ilan, J; Peritz, BC PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.52-62 Message-ID: Email address: barilaj at mail.biu.ac.il Author(s): Bar-Ilan, J (Bar-Ilan, Judit); Peritz, BC (Peritz, Bluma C.) Title: The lifespan of "Informetrics" on the web: an eight year study (1998-2006) Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 52-62, 2007 Cited Reference Count: 30 Language: English Document Type: Article Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: informetrics; longitudinal web study; web evolution; growth decay KeyWords Plus: LINK ROT; PERSISTENCE; REFERENCES; EVOLUTION; PAGES; DECAY Abstract: The World Wide Web is growing at an enormous speed, and has become an indispensable source for information and research. New pages are constantly added, but there are additional processes as well: pages are moved or removed and/or their content changes. We report here the results of an eight year long project started in 1998, when multiple search engines were used to identify a set of pages containing the term informetrics. Data collection was repeated once a year for the last eight years (with the exception of 2000 and 2001) using both search engines and revisiting previously identified pages. The results show that the number of pages grew from 866 in 1998 to 28,914 in 2006 - a 33-fold growth. Besides the obvious growth of the topic on the Web, we observed both decay (pages disappearing from the Web) and modification. Even though most of the pages from 1998 either disappeared or ceased to contain the term informetrics, 165 pages (19.1%) still exist in 2006 and contain the search term. We followed the "fate" of these 165 pages: characterized the publishers, the contents and the changes that occurred the whole period. In recent years e-print servers and publishers' sites became sources of large number of pages related to informetrics. Longitudinal studies following the evolution of a topic on the Web are very important, since they provide insights about content and the underlying Web processes. Addresses: Bar Ilan Univ, Dept Informat Sci, Ramat Gan, IL-52900 Israel. Cited References: BAEZAYATES R, 2003, P 1 LAT AM WEB C LA BARILAN J, 1999, SCIENTOMETRICS, V46, P371 BARILAN J, 2000, J AM SOC INFORM SCI, V51, P432 BARILAN J, 2004, J AM SOC INF SCI TEC, V55, P980 BREWINGTON BE, 2000, COMPUTER, V33, P52 CASSERLY MF, 2003, COLL RES LIBR, V64, P300 CHO J, 2000, P 26 INT C VER LARG, P200 FETTERLY D, 2004, SOFTWARE PRACT EXPER, V34, P213 GOH DH, 2006, IN PRESS JASIST GOMES D, 2006, P 6 INT C WEB ENG PA, P193 KE YP, 2006, COMPUT NETW, V50, P1430 KIM SJ, 2005, LECT NOTES COMPUT SC, V3399, P632 KOEHLER W, 2004, INFORM RES, V9 KRIPPENDORFF K, 2003, CONTENT ANAL INTRO I LAWRENCE S, 2001, COMPUTER, V34, P26 MARKWELL J, 2003, BIOCHEM MOL BIOL EDU, V31, P69 MCCOWN F, 2005, 5 INT WEB ARCH WORKS MIZZARO S, 1998, INTERACTING COMPUTER, V10, P305 NELSON ML, 2002, D LIB MAGAZINE 1112, V8 NEUDORF KA, 2001, CONTENT ANAL GUIDEBO NTOULAS A, 2004, P 13 INT C WORLD WID, P1 ORTEGA JL, 2006, SCIENCE, V32, P344 ROUSSEAU R, 1999, CYBERMETRICS, V2 SARACEVIC T, 1998, P 2 C CONC LIB INF S, P201 SELLITTO C, 2005, J AM SOC INF SCI TEC, V56, P695 SPINELLIS D, 2003, COMMUN ACM, V46, P71 TOYODA M, 2006, P WWW 2006, P233 TYLER DC, 2003, PORTAL-LIBR ACAD, V3, P615 WREN JD, 2004, BIOINFORMATICS, V20, P668 WREN JD, 2006, ARCH DERMATOL, V142, P1147 Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 11:39:24 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 11:39:24 -0500 Subject: International collaboration, mobility and team diversity in the life sciences: Impact on research performance Barjak, F; Robinson, S PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.63-73 Message-ID: Email address: franz.barjak at fhnw.ch Author(s): Barjak, F (Barjak, Franz); Robinson, S (Robinson, Simon) Title: International collaboration, mobility and team diversity in the life sciences: Impact on research performance Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 63-73, 2007 Language: English Document Type: Article Cited Reference Count: 46 Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: research team; team diversity; international collaboration; research productivity; mobility in science KeyWords Plus: SCIENTIFIC COLLABORATION; BIOMEDICAL-RESEARCH; CO- AUTHORSHIP; BIBLIOMETRICS; COOPERATION; HYBRID; SIZE Abstract: The combination of knowledge and skills from different backgrounds or research cultures is often considered good for science. This paper describes the extent to which academic research teams in the life sciences draw on different national knowledge pools and how this is related to their research performance. We distinguish between international collaboration between research teams and international mobility leading to team diversity, where scientists with a background in another country work as members of a team over time. Our findings confirm previous results on the positive relationship between international collaboration and team performance. Moreover, we show that the most productive teams have a moderate level of diversity: maximizing diversity does not maximize performance. These results have implications for research team management and for research policy, in particular pointing out a need for adequate integration support to mobile scientists. Addresses: Univ Appl Sci NW Switzerland, Sch Business, Olten, CH-4600 Switzerland. Cited References: *EUR COMM, 2001, MOB STRAT EUR RES AR *EUR COMM, 2003, 3 EUR REP SCI TECHN *NAT SCI BOARD, 2004, SCI ENG IND 2004 ADAMS JD, 2005, RES POLICY, V34, P259 ANDREWS FM, 1979, SCI PRODUCTIVITY EFF ARORA A, 1998, ANN EC STAT, V49, P163 BARJAK F, 2006, 9 INT C S T IND NEW BONACCORSI A, 2005, SCIENTOMETRICS, V63, P87 BORDONS M, 1996, SCIENTOMETRICS, V37, P279 BORDONS M, 2000, WEB KNOWLEDGE FESTSC, P197 BORGMAN CL, 2002, ANNU REV INFORM SCI, V36, P3 BUNDERSON JS, 2002, ACAD MANAGE J, V45, P875 CAMERON AC, 1998, REGRESSION ANAL COUN CARAYOL N, 2004, RES POLICY, V33, P1081 CARAYOL N, 2004, WHY DO ACAD SCI ENGA CESARONI F, 2003, SCI INNOVATION RETHI, P202 COHEN JE, 1981, SCIENTOMETRICS, V3, P467 CRONIN B, 1984, CITATION PROCESS ROL EARLEY PC, 2000, ACAD MANAGE J, V43, P26 FIOL CM, 2005, ORGAN SCI, V16, P19 GEORGHIOU L, 1998, RES POLICY, V27, P611 GLANZEL W, 2001, SCIENTOMETRICS, V50, P199 GLANZEL W, 2001, SCIENTOMETRICS, V51, P69 GLANZEL W, 2006, COAUTHORSHIP LINKS L GREENE WH, 2000, ECONOMETRIC ANAL HAGSTROM W, 1965, SCI COMMUNITY HARSANYI MA, 1993, LIBR INFORM SCI RES, V15, P325 HERBERTZ H, 1995, SCIENTOMETRICS, V33, P117 HOLLINGSWORTH JR, 2000, MAJOR DISCOVERIES BI JEHN KA, 1999, ADMIN SCI QUART, V44, P741 JONS H, 2003, GRENZUBERSCHREITENDE KATZ JS, 1997, RES POLICY, V26, P1 LAREDO P, 2000, SCIENTOMETRICS, V47, P515 LAUDEL G, 2001, INT J TECHNOL MANAGE, V22, P762 LEEUWEN TN, 2001, SCIENTOMETRICS, V51, P335 LUUKKONEN T, 1992, SCI TECHNOL, V17, P101 NARIN F, 1991, SCIENTOMETRICS, V21, P313 PERSSON O, 2004, SCIENTOMETRICS, V55, P335 STEPHAN PE, 2001, POPUL RES POLICY REV, V20, P59 THELWALL M, 2003, J INFORM SCI, V29, P1 THORSTEINSDOTTIR OH, 2000, SCIENTOMETRICS, V49, P145 VONRAAN A, 1998, SCIENTOMETRICS, V42, P423 VONRAAN A, 2003, THEORIE PRAXIS, V12, P20 VONTUNZELMANN N, 2003, EFFECTS SIZE RES PER WAGNER CS, 2005, SCIENTOMETRICS, V62, P3 WILLIAMS KY, 1998, RES ORGAN BEHAV, V20, P77 Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 11:45:09 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 11:45:09 -0500 Subject: A modular sequence of retrieval procedures to delineate a scientific field: from vocabulary to citations and back Bassecoulard, E; Lelu, A; Zitt, M PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.74-84 Message-ID: Email address: bassecou at nantes.inra.fr Author(s): Bassecoulard, E (Bassecoulard, Elise); Lelu, A (Lelu, Alain); Zitt, M (Zitt, Michel) Title: A modular sequence of retrieval procedures to delineate a scientific field: from vocabulary to citations and back Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 74-84, 2007 Language: English Document Type: Article Cited Reference Count: 17 Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: bibliographic coupling; nanosciences; citation flows; language processing; term extraction KeyWords Plus: NANOSCIENCES; DELIMITATION; COCITATION Abstract: This communication presents a modular arrangement of lexical and citation operations to achieve a satisfactory delineation of a scientific field. Three querying methods are considered: on journals, on articles vocabulary, and on citation network. Rather than associating these querying modes, we consider possible sequences that make the best use of each method. At any stage of iteration, the retrieved set can be enhanced by either a citation-based analysis. or a vocabulary analysis (relative dictionaries), in order to reduce silence or noise. General noise- reduction techniques, such as clustering, are applicable at various points of the procedure. A particular sequence on a complex field (nanosciences) is described, starting with journal and lexical query, then applying a citation expansion with a final lexical adjustment. Another sequence is sketched, starting with an additional journal-based procedure. Addresses: INRA, Lereco, F-44316 France. Cited References: AKSNES DW, 2000, SCIENTOMETRICS, V49, P7 BASSECOULARD E, 2007, SCIENTOMETRICS, V70, P859 BRAAM RR, 1991, J AM SOC INFORM SCI, V42, P233 BRIN S, 1998, COMPUTER NETWORKS IS, V30, P1 DEBRUIN RE, 1993, SCIENTOMETRICS, V26, P65 GARFIELD E, 1967, J LIBRARY HISTORY, V2, P235 KOSTOFF RN, 2001, TECHNOL FORECAST SOC, V68, P223 LELU A, 1992, P 4 ACM C HYP MIL IT, P112 LELU A, 1994, NEW APPROACHES CLASS, P241 MEYER M, 2001, NANOTECHNOLOGY EXPER NOYONS EC, 2003, MAPPING EXCELLENCE S RINIA EJ, 1993, SCIENTOMETRICS, V28, P89 VANLEEUWEN TN, 2001, RES EVALUAT, V10, P195 VERGNE J, 1998, ACT CINQ C ANN TRAIT, P22 VERGNE J, 2001, ACTES TALN 2001, P15 ZITT M, 2003, SCIENTOMETRICS, V57, P93 ZITT M, 2006, INFORM PROCESS MANAG, V42, P1513 Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 13:25:26 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 13:25:26 -0500 Subject: Tomaiuolo N "Citations and Aberrations" The Searcher Magazine for Database Professionals 15(7): 17-24, July - August 2007. Message-ID: E-MAIL: tomaiuolon at ccsu.ctstateu.edu TITLE : Citations and aberrations AUTHOR : Tomaiuolo, N. SOURCE : The Searcher Magazine for Database Professionals 15(7):17-24, July-August 2007. AUTHOR ADDRESS: N.Nicholas G. Tomaiuolo, M.L.S. Bibliographic Instruction Librarian Central Connecticut State University Library Reference Department New Britain, CT 06050 ABSTRACT: In today's Webbed-up world, the subject of bibliographic citations may seem dreary at best. Writing teachers may love to pick citations apart, but creating them is tedious. Students detest them. Editors' assistants routinely suffer nightmares about correcting them. Researchers depend on them and faculty stake their reputations and hopes for recognition on the number of times they see theirs at the end of their peers' work. Most of us learned to compose them in elementary school or junior high, yet properly constructing bibliographic citations has inexplicably become a daunting and bewildering chore, especially in this age of digital research. What is the primary function of a citation? As a librarian who has spent many hours in the past 20 years decoding the bibliographic anomalies of others, I believe citations exist primarily to aid in retrieving the referenced materials. A survey I devised in 2006 and mailed to university and community college English professors throughout the U.S. showed that 91 percent (n=109) agreed with me (only 11 professors disagreed). While many writers concur that retrieval is the main purpose of citing information (refs 1,2,3), some authors assert "intellectual debt" (ref4), as well as the perils of plagiarism (ref5,6), as the basic missions. Regardless of one's perspective on the raison d'etre, everyone seems to agree that properly citing our sources is critical not only to scholars, but also in fields such as law. All researchers and scholars wishing to be published must demonstrate their scrupulous knowledge of citation formatting in their field and their strict adherence to it. Otherwise, their slipshod references, along with their discoveries, may end up tossed out or returned to them. Commenting on a "disconcerting volume of errors" Rose Mary Carroll-Johnson, current editor of Oncology Nursing Forum, wrote "with each year my tolerance for this lack of attention to detail has diminished to the point where I have taken to sending papers back to authors with a demand that the references be formatted correctly ... it is time for authors to accept the responsibility for what is really their job."(ref.7) From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 13:52:47 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 13:52:47 -0500 Subject: Jiang X and Mojon D."Filtering duplicate publications in bibliographic databases" Proceedings of the 1st International Workshop on New Developments in Digital Libraries: n conjunction with ICEIS 2001 table of contents p.79-88, 2001 Message-ID: Dr. Xiaoyi Jiang : xjiang at math.uni-muenster.de TITLE : Filtering Duplicate Publications in Bibliographic Databases AUTHORS: Xiaoyi Jiang and Daniel Mojon Source : Proceedings of the 1st International Workshop on New Developments in Digital Libraries: n conjunction with ICEIS 2001 table of contents Pages: 79 - 88 Year of Publication: 2001 ISBN:972-98050-4-0 Authors Xiaoyi Jiang & Daniel Mojon Publisher ICEIS Press ABSTRACT: Duplicate publications are generally considered unethical. In practice they are usually discovered by careful reviewers, editors, and readers in a totally unsystematic manner. With the availability of large bibliographic databases in electronical form, we are now able to explore systematic and extensive evaluation of publications for duplicates. In this paper we discuss a taxonomy of duplicate detection. A technique is proposed using the title and author name information only. Our approach has been applied to three different scenarios in the area of ophthalmology. In all cases we could gain interesting knowledge that would not have been possible without an automatic systematic evaluation of large bibliographic databases. From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 13:57:35 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 13:57:35 -0500 Subject: Agarwal A, Agarwal R. "The vulnerability and limitations of impact factor in evaluating quality " Journal of the Royal Society of Medicine 100(8):354-355, August 2007. Message-ID: E-Mail : rachna_anila at yahoo.co.in Author(s): Agarwal, A (Agarwal, Anil); Agarwal, R (Agarwal, Rachna) Title : The vulnerability and limitations of impact factor in evaluating quality Source : JOURNAL OF THE ROYAL SOCIETY OF MEDICINE, 100 (8): 354-355 AUG 2007 Language: English Document Type: Letter Addresses: CNBC, Dept Orthopaed, Delhi, India; Univ Coll Med Sci, Dept Obstet & Gynaecol, Delhi, India Reprint Address: Agarwal, A, 131,Ankur Apartments,7-IP Extens, Delhi 110092, India. E-mail Address: rachna-anila at yahoo.co.in Cited References: 2007, J ROY SOC MED, V100, P142. BOLLEN J, 2006, SCIENTOMETRICS, V69, P669. CHEW M, 2007, J ROY SOC MED, V100, P142. JENNINGS C, 1999, NEUROENDOCRINOL LETT, V20, P7. Cited Reference Count: 4 Times Cited: 0 Publisher: ROYAL SOC MEDICINE PRESS LTD Publisher Address: 1 WIMPOLE STREET, LONDON W1G 0AE, ENGLAND ISSN: 0141-0768 29-char Source Abbrev.: J ROY SOC MED ISO Source Abbrev.: J. R. Soc. Med. Source Item Page Count: 2 Subject Category: Medicine, General & Internal ISI Document Delivery No.: 199TW From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 14:01:13 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 14:01:13 -0500 Subject: Wilson AE "Journal Impact Factors are Inflated" Bioscience 57(7):550-551, July-August 2007 Message-ID: E-mail Address: alan.e.wilson at gmail.com Author(s): Wilson, AE (Wilson, Alan E.) Title: Journal impact factors are inflated Source: BIOSCIENCE, 57 (7): 550-551 JUL-AUG 2007 Language: English Document Type: Editorial Material Addresses: Auburn Univ, Dept Fisheries & Allied Aquacultures, Auburn, AL 36849 USA Reprint Address: Wilson, AE, Auburn Univ, Dept Fisheries & Allied Aquacultures, Auburn, AL 36849 USA. E-mail Address: alan.e.wilson at gmail.com Cited References: AGRAWAL AA, 2005, TRENDS ECOL EVOL, V20, P157, DOI 10.1016/j.tree.2005.02.002. BERGSTROM CT, 2006, FRONT ECOL ENVIRON, V4, P488. BERGSTROM CT, 2007, COLL RES LIB NEWS, V68. FRAZIER K, 2001, D LIB MAGAZINE, V7. GOWRISHANKAR J, 1999, NATURE, V401, P321. Cited Reference Count: 5 Times Cited: 0 Publisher: AMER INST BIOLOGICAL SCI Publisher Address: 1444 EYE ST, NW, STE 200, WASHINGTON, DC 20005 USA ISSN: 0006-3568 From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 14:08:02 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 14:08:02 -0500 Subject: Sharma OP "Journal Impact Factor: An essential primary quality indicator" Current Science 93(1): 5-5 July 10, 2007. Message-ID: FULL TEXT AVAILABLE AT : http://www.ias.ac.in/currsci/jul102007/5.pdf E-mail Address: omsharma53 at yahoo.com Author(s): Sharma, OP (Sharma, Om P.) Title: Journal impact factor: An essential primary quality indicator Source: CURRENT SCIENCE, 93 (1): 5-5 JUL 10 2007 Language: English Document Type: Letter Addresses: Indian Vet Res Inst, Reg Stn, Palampur 176061, Himachal Prades, India Reprint Address: Sharma, OP, Indian Vet Res Inst, Reg Stn, Palampur 176061, Himachal PradesH, India. E-mail Address: omsharma53 at yahoo.com Cited References: BALARAM P, 1999, CURR SCI INDIA, V76, P1519. GARFIELD E, 1999, CAN MED ASSOC J, V161, P979. GARFIELD E, 2006, JAMA-J AM MED ASSOC, V295, P90. GOWRISHANKAR J, 1999, CURR SCI INDIA, V76, P1424. Cited Reference Count: 4 Times Cited: 0 Publisher: CURRENT SCIENCE ASSOC Publisher Address: C V RAMAN AVENUE, PO BOX 8005, BANGALORE 560 080, INDIA ISSN: 0011-3891 From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 14:18:17 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 14:18:17 -0500 Subject: Stock WG "Folksonomies and Science Communication" Information Services & Use 27:97-103, 2007. Message-ID: E-mail: stock at phil-fak.uni-duesseldorf.de AUTOR : Stock, Wolfgang G. TITLE : Folksonomies and Science Communication SOURCE: Information Services & Use 27:97-103, 2007. ABSTRACT: Folksonomies complete the methods of indexing scientific documents. Now scientists in their function as readers may play an active role in science communication as well, since they can tag documents with terms taken from their professional or personal environment. Folksonomies allow the indexing of documents by everyone without following any rules. Besides the benefits of some folksonomies, there are severe problems, e.g. the tags' lack of precision. In order to overcome the shortcomings of this collaborative indexing method, we introduce natural language processing of tags and a relevance ranking algorithm which is based on specific tag distributions, on aspects of collaboration and on the actions of the "prosumers". This article is a plea for the combination of the "old" science databases and the benefits of the folksonomies. From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 14:36:39 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 14:36:39 -0500 Subject: Podlubny I, Kassayova K. "Towards a better list of citation superstars: compiling a multidisciplinary list of highly cited researchers " Research Evaluation 15(3):154-162 December 2006 Message-ID: E-MAIL : IGOR PODLUBNY : Igor.Podlubny at tuke.sk Author(s): Podlubny, I (Podlubny, Igor); Kassayova, K (Kassayova, Katarina) Title: Towards a better list of citation superstars: compiling a multidisciplinary list of highly cited researchers Source: RESEARCH EVALUATION, 15 (3): 154-162 DEC 2006 Language: English Document Type: Article Abstract: A new approach to producing multidisciplinary lists of highly cited researchers is described and used for compiling the first multidisciplinary list of highly cited researchers. This approach is essentially related to the recently discovered law of the constant ratios, and gives a better- balanced representation of different scientific fields. Addresses: Tech Univ Kosice, BERG Fac, Dept Appl Informat & Proc Control, Kosice, Slovakia; Safarik Univ, Dept Physiol, Kosice, Slovakia Reprint Address: Podlubny, I, Tech Univ Kosice, BERG Fac, Dept Appl Informat & Proc Control, Kosice, Slovakia. Cited References: *NSF, 2004, SCI ENG IND 2004 4 M, P5. ABREU P, 1996, Z PHYS C PART FIELDS, V73, P11. GARFIELD E, 1992, SCI PUBL POLICY, V19, P321. GLANZEL W, 2002, SCIENTOMETRICS, V53, P171. GLANZEL W, 2003, SCIENTOMETRICS, V56, P357. HIRSCH JE, 2005, P NATL ACAD SCI USA, V102, P16569, DOI 10.1073/pnas.0507655102. KATZ JS, 1999, RES POLICY, V28, P501. KATZ JS, 2000, SCI PUBL POLICY, V27, P23. KATZ JS, 2005, INTERDISCIPLINARY RE, V3, P24. MILMAN V, 2006, NOTICES AMS, V53, P351. MOED HF, 2005, CURR SCI INDIA, V89, P1990. MORRISEY LJ, 2002, SCI TECH LIBR, V22, P149, DOI 10.1300/J122v22n03_12. PODLUBNY I, 2005, SCIENTOMETRICS, V64, P95. SCHAFER NI, 2003, SCIENCEWATCH, V14. SEGLEN PO, 1997, BRIT MED J, V314, P497. VANRAAN AFJ, 2005, 1 INT C WORLD CLASS. VANRAAN AFJ, 2005, J AM SOC INFORM SCI, V57, P408. VANRAAN AJF, 2005, MEASUREMENT INTERDIS, V3, P1. WADE N, 1997, NY TIMES 1007. Cited Reference Count: 19 Times Cited: 0 Publisher: BEECH TREE PUBLISHING Publisher Address: 10 WATFORD CLOSE,, GUILDFORD GU1 2EP, SURREY, ENGLAND ISSN: 0958-2029 From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 14:55:53 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 14:55:53 -0500 Subject: Dellavalle RP, Schilling LM, Rodriguez MA, Van de Sompel H, Bollen J. "Refining dermatology journal impact factors using PageRank" J. American Academy of Dermatology 57(1):116-119, 2007. Message-ID: E-mail Addresses: robert.dellavalle at uchsc.edu Author(s): Dellavalle RP (Dellavalle, Robert P.), Schilling LM (Schilling, Lisa M.), Rodriguez MA (Rodriguez, Marko A.), Van de Sompel H (Van de Sompel, Herbert), Bollen J (Bollen, Johan) Title : Refining dermatology journal impact factors using PageRank Source: JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY Volume: 57 Issue: 1 Pages: 116-119 Published: JUL 2007 Times Cited: 0 References: 15 Abstract: Background: Thomson Institute for Scientific Information's journal impact factor, the most common measure of journal status, is based on crude citation counts that do not account for the quality of the journals where the citations originate. This study examines how accounting for citation origin affects the impact factor ranking of dermatology journals. Methods: The 2003 impact factors of dermatology journals were adjusted by a weighted PageRank algorithm that assigned greater weight to citations originating in more frequently cited journals. Results: Adjusting for citation origin moved the rank of the Journal of the American Academy of Dermatology higher than that of the Archives of Dermatology (third to second) but did not affect the ranking of the highest impact dermatology journal, the Journal of Investigative Dermatology. The dermatology journals most positively affected by adjusting for citation origin were Contact Dermatitis (moving from 22nd to 7th in rankings) and Burns (21st to 10th). Dermatology journals most negatively affected were Seminars in Cutaneous Medicine and Surgery (5th to 14th), the Journal of Cutaneous Medicine and Surgery (19th to 27th), and the, Journal of Investigative Dermatology Symposium Proceedings (26th to 34th). Limitations: Current measures of dermatology journal status do not incorporate survey data from dermatologists regarding which journals dermatologists esteem most. Conclusion: Adjusting for citation origin provides a more refined measure of journal status and changes relative dermatology journal rankings. Document Type: Article Language: English Addresses: Dellavalle, RP (reprint author), Univ Colorado, Hlth Sci Ctr Fitzsimmons, Dept Dermatol, POB 6511,Mail Stop F8127, Aurora, CO 80045 USA Univ Colorado Denver & Hlth Sci Ctr, Dept Vet Affairs Med Ctr, Denver, CO USA Univ Colorado Denver & Hlth Sci Ctr, Dept Dermatol, Denver, CO USA Univ Colorado Denver & Hlth Sci Ctr, Dept Med, Denver, CO USA Los Alamos Natl Lab, Res Lib, Los Alamos, NM USA E-mail Addresses: robert.dellavalle at uchsc.edu Publisher: MOSBY-ELSEVIER, 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA IDS Number: 183MS ISSN: 0190-9622 DOI: 10.1016/j.jaad.2007.03.005 CITED REFERENCES: INTERNET DIGEST GOOG. 2006, PLOS MED, V3, E291. BALL P, 2006, NATURE, V439, P770, DOI 10.1038/439770a. BOLLEN J, J STATUS. BOLLEN J, 2006, SCIENTOMETRICS, V69, P669. BRIN S, 1998, COMPUT NETWORKS ISDN, V30, P107. DONG P, 2005, BIOMED DIGIT LIB, V2, P7. EYSENBACH G, 2006, PLOS BIOL, V4, P692, ARTN e157. GARFIELD E, 2006, JAMA-J AM MED ASSOC, V295, P90. HOLDEN G, 2005, SOC WORK HEALTH CARE, V41, P67, DOI 10.1300/J010v41n03_03. JELLINEK NJ, 2004, J AM ACAD DERMATOL, V50, P470, DOI 10.1016/j.jaad.2003.08.012. JEMEC GB, 2001, BMC DERMATOL, V1, P7. LAWRENCE S, 2001, NATURE, V411, P521. LUNDBERG GD, 2003, MED J AUSTRALIA, V178, P253. MONASTERSKY R, 2005, CHRON HIGHER EDUC, V52, A12. From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 15:09:40 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 15:09:40 -0500 Subject: Kasal, P.; Janda, A.; Feberova, J.; Adla, T.; Hladikova, M.; Naidr, J.P.; Potuckova, R. "Evaluation of health care related Web resources based on Web citation analysis and other quality criteria " 2005 27th Annual Intnl Conf of the IEEE : 4 pp., 2006 Message-ID: E-Mail : Dr. J.P. Naidr : jan.naidr at lefmotol.cuni.cz Title: Evaluation of health care related Web resources based on Web citation analysis and other quality criteria Author(s): Kasal, P.; Janda, A.; Feberova, J.; Adla, T.; Hladikova, M.; Naidr, J.P.; Potuckova, R. Source: 2005 27th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE Cat. No.05CH37611C) : 4 pp., 2006 Conference Information: 2005 27th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Shanghai, China, 31 Aug.-3 Sept. 2005 Language: English Treatment: Practical Abstract: Automatic system for ranking of educational health care related Web resources based on quality criteria was developed. Automatic retrieval of new Web resources from well-known directories followed by their automatic evaluation is a keystone of the system. The system provides this information: a) location of the resource and its author, b) number of back links to the resource, c) checks presence of electronic labels of quality. Currently the system encompasses more than 500 links to educational Web resources divided into 47 medical specialities. The resources in all categories are ranked according to their link popularity, the electronic labels of quality are presented. History of link popularity is recorded and might be displayed at every resource. There are 2 language editions. The system operates automatically, the editors check and correct the retrieved values. The described system adds to Website indexing criteria for objective evaluation of quality of Webpages. It is useful for the selection of optimum education resources in health care. Controlled Indexing: biomedical education; health care; medical information systems; Web sites Uncontrolled Indexing: educational health care related Web resources; Web citation analysis; quality criteria; automatic retrieval; back links; electronic labels of quality; Website indexing criteria Classification Code(s): C7140 Medical administration C7330 Biology and medical computing C7210N Information networks Author Address: Kasal, P.; Janda, A.; Feberova, J.; Adla, T.; Hladikova, M.; Naidr, J.P.; Potuckova, R.; Inst. of Medical Informatics, Charles Univ., Prague, Czech Republic Publisher: IEEE, Piscataway, NJ, USA Number of References: 15 U.S. Copyright Clearance Code: 0 7803 8740 6/2005/$20.00 Standard Book Number: 0 7803 8740 6 From garfield at CODEX.CIS.UPENN.EDU Thu Dec 13 15:28:12 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 13 Dec 2007 15:28:12 -0500 Subject: Gonzalez L, Campanario JM, Structure of the impact factor of journals included in the Social Sciences Citation Index: Citations from documents labeled "editorial material" JASIST, 58 (2): 252-262 JAN 15 2007 Message-ID: E-mail Address: lgonzalez at uah.es; juan.campanario at uah.es Author(s): Gonzalez, L (Gonzalez, Lidia); Campanario, JM (Campanario, Juan Miguel) Title: Structure of the impact factor of journals included in the Social Sciences Citation Index: Citations from documents labeled "editorial material" Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, 58 (2): 252-262 JAN 15 2007 Language: English Document Type: Article Keywords Plus: QUALITY Abstract: We investigated how citations from documents labeled by the Institute for Scientific Information (ISI) as '' editorial material '' contribute to the impact factor of academic journals in which they were published. Our analysis is based on records corresponding to the documents classified by the ISI as editorial material published in journals covered by the Social Sciences Citation Index between 1999 and 2003 (50,273 records corresponding to editorial material published in 2,374 journals). The results appear to rule out widespread manipulation of the impact factor by academic journals publishing large amounts of editorial material with many citations to the journal itself as a strategy to increase the impact factor. Addresses: Univ Alcala de Henares, Dept Fis, Madrid 28871, Spain Reprint Address: Gonzalez, L, Univ Alcala de Henares, Dept Fis, Edificio Ciencias, Madrid 28871, Spain. E-mail Address: lgonzalez at uah.es; juan.campanario at uah.es Cited Reference Count: 25 Times Cited: 0 Publisher: JOHN WILEY & SONS INC Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA ISSN: 1532-2882 DOI: 10.1002/asi.20424 Cited References: AMIN M, 2000, PERSPECTIVES PUBLISH, V1, P1. BORDONS M, 2002, SCIENTOMETRICS, V53, P196. CAMPANARIO JM, 1996, J AM SOC INFORM SCI, V47, P184. CAMPANARIO JM, 1998, SCI COMMUN, V19, P181. CAMPANARIO JM, 2006, SCIENTOMETRICS, V69, P365, DOI 10.1007/s11192-006-0158-1. CAMPANELLI M, 1998, MULTIBODY SYSTEM DYN, V2, P277. COELHO PMZ, 2003, BRAZ J MED BIOL RES, V36, P1605. FASSOULAKI A, 2002, ACTA ANAESTH SCAND, V46, P902. GARFIELD E, 1999, CAN MED ASSOC J, V161, P979. GARFIELD E, 2003, INT J CLIN HLTH PSYC, V3, P363. GLANZEL W, 2002, SCIENTOMETRICS, V53, P171. HEMMINGSSON A, 2002, LANCET, V359, P173. JIMENEZCONTRERAS E, 2002, NATURE, V417, P898. LEMASTERS JJ, 2003, GASTROENTEROLOGY, V124, P286, DOI 10.1053/gast.2003.50105. LUNDBERG GD, 2003, MED J AUSTRALIA, V178, P253. MASSIE BM, 2002, J CARD FAIL, V8, P363, DOI 10.1054/jcaf.2002.130235. MOED HF, 1995, J AM SOC INFORM SCI, V46, P461. SEVINC A, 2004, SWISS MED WKLY, V134, P410. SHUGAN SM, 2002, MARKET SCI, V21, P1. SMITH R, 1997, BRIT MED J, V314, P461. SOMBATSOMPOP N, 2004, SCIENTOMETRICS, V60, P217. TRAYHURN P, 2002, BRIT J NUTR, V88, P1. VANDIEST PJ, 2001, J CLIN PATHOL, V54, P817. WALTER G, 2003, MED J AUSTRALIA, V178, P280. WHITEHOUSE G, 2001, BRIT J RADIOL, V74, P1. From Christina.Pikas at JHUAPL.EDU Tue Dec 18 09:36:58 2007 From: Christina.Pikas at JHUAPL.EDU (Pikas, Christina K.) Date: Tue, 18 Dec 2007 09:36:58 -0500 Subject: FW: GENERAL: accuracy of Thomson data Message-ID: Interesting article -- this came across another listserv I'm on. - Calls for an audit of WoS data. - Suggests median measure - Points to errors caused by article type designations. Christina K. Pikas, MLS R.E. Gibson Library & Information Center The Johns Hopkins University Applied Physics Laboratory Voice 240.228.4812 (Washington), 443.778.4812 (Baltimore) Fax 443.778.5353 -----Original Message----- From: PAMnet [mailto:PAMNET at listserv.nd.edu] On Behalf Of Carol Hutchins Sent: Tuesday, December 18, 2007 9:06 AM To: PAMNET at listserv.nd.edu Subject: GENERAL: accuracy of Thomson data The Suber blog has a pointer to an interesting editorial in the J. Cell Biology related to how articles are counted by Thomson ISI. Rather than repost here, I'll give the reference to JCB. (Worthwhile for the cartoon alone!) http://www.jcb.org/cgi/content/full/179/6/1091 From Hakan.Carlsson at LUB.LU.SE Tue Dec 18 09:46:07 2007 From: Hakan.Carlsson at LUB.LU.SE (=?iso-8859-1?Q?H=E5kan_Carlsson?=) Date: Tue, 18 Dec 2007 15:46:07 +0100 Subject: Invitation to Fourth Nordic Conference on Scholarly Communication NCSC 2008 Message-ID: **Apologies for any Cross-Posting** Dear Friends, Following up the success of the previous Nordic Conferences on Scholarly Communication, Lund University Libraries are proud to announce the Fourth Nordic Conference. The registration is now open at the conference website, http://www.lub.lu.se/en/ncsc.html. In order to discuss, present and analyse the problems and challenges that arise within scholarly communication Lund University Libraries invite scholars, publishers, vendors, editors, librarians and other interested parties to the Fourth Nordic Conference on Scholarly Communication 21 - 23 April 2008 in Lund, Sweden. The conference takes place every second year and aims to be an important contribution to the discussion and to the development within the Nordic countries. Welcome to Lund in April! Best regards, H?kan Carlsson --------- H?kan Carlsson Biblioteksdirektionen / Head Office Lunds universitet / Lund University Libraries Box 134 221 00 LUND Tel. +46 46-222 15 30 Fax + 46 46-222 36 82 -------------- next part -------------- An HTML attachment was scrubbed... URL: From loet at LEYDESDORFF.NET Tue Dec 18 14:50:06 2007 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Tue, 18 Dec 2007 20:50:06 +0100 Subject: FW: GENERAL: accuracy of Thomson data In-Reply-To: <934BB0B6D8A02C42BC6099FDE8149CCD0273989B@aplesjustice.dom1.jhuapl.edu> Message-ID: Dear Christina and colleagues: Incorrect journal abbreviations and non-ISI sources Citations J Phys Chem-US 54,139 Phys Rev 32,352 Biochim Biophys Acta 26,108 Communication 22,062 Am J Physiol 14,716 Unpub 14,020 Am J Med Genet 13,467 J Bone Joint Surg 13,405 J Biomed Mater Res 12,962 J Chem Soc Perk T 1 11,870 Am Rev Respir Dis 11,033 P Soc Photo-Opt Ins 10,817 Acta Metall Mater 10,310 Mmwr-Morbid Mortal W 10,208 Table 4: Non-ISI sources and incorrect journal abbreviations with more than 10,000 citations in the JCR 2005. "With its 54,139 citations, the J Phys Chem-US would belong to the top-50 journals of the database if it were included. However, this journal is included in the ISI-database under the abbreviations J Phys Chem A and J Phys Chem B with 32,086 and 59,826 citations, respectively. For some journals, however, the different spellings in the references may have large implications. Bornman et al. (2007, at p. 105) found 21.5% overestimation of the impact factor of Angewandte Chemie in 2005 because of authors providing references to both the German and international editions of this journal (Marx, 2001)." Source: " Caveats for the Use of Citation Indicators in Research and Journal Evaluations," Journal of the American Society for Information Science and Technology, February 2008 (forthcoming; available as Early View). With best wishes, Loet Leydesdorff _____ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR) Kloveniersburgwal 48, 1012 CX Amsterdam loet at leydesdorff.net ; http://www.leydesdorff.net/ Visiting Professor, ISTIC, Beijing; Honorary Fellow SPRU, University of Sussex Now available: The Knowledge-Based Economy: Modeled, Measured, Simulated, 385 pp.; US$ 18.95; The Self-Organization of the Knowledge-Based Society ; The Challenge of Scientometrics > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Pikas, Christina K. > Sent: Tuesday, December 18, 2007 3:37 PM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > > Interesting article -- this came across another listserv I'm on. > - Calls for an audit of WoS data. > - Suggests median measure > - Points to errors caused by article type designations. > > > Christina K. Pikas, MLS > R.E. Gibson Library & Information Center > The Johns Hopkins University Applied Physics Laboratory > Voice 240.228.4812 (Washington), 443.778.4812 (Baltimore) > Fax 443.778.5353 > > > > -----Original Message----- > From: PAMnet [mailto:PAMNET at listserv.nd.edu] On Behalf Of > Carol Hutchins > Sent: Tuesday, December 18, 2007 9:06 AM > To: PAMNET at listserv.nd.edu > Subject: GENERAL: accuracy of Thomson data > > The Suber blog has a pointer to an interesting editorial in > the J. Cell > Biology related to how articles are counted by Thomson ISI. > > Rather than repost here, I'll give the reference to JCB. (Worthwhile > for the cartoon alone!) > > http://www.jcb.org/cgi/content/full/179/6/1091 > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Chris.Armbruster at EUI.EU Wed Dec 19 02:44:36 2007 From: Chris.Armbruster at EUI.EU (Armbruster, Chris) Date: Wed, 19 Dec 2007 08:44:36 +0100 Subject: Accuracy of Thomson data - decentralising data collection and enhancing the scope of scientometrics? Message-ID: To the list: Would you trust the situation to improve if digital repositories (institutional, disciplinary and/or national) were to provide data in future? One would possibly expect that a decentralised solution would provide more comprehensive (types of publication, languages etc.) and more accurate coverage, but one might also worry that the corpus will be less well defined.... Hence, what would you think if repositories developed a system of author registration (unique identifier, institutional affiliation) and provided data? What is the scope for delivering scientometrics to the digital workbench of scientists? I have anecdotal evidence that review panels (for major grants, tenure etc. - often very senior scientists) routinely use software and search engines to look up the citation data and indices of applicants and candidates. If we were not to dismiss this simply as evaluation mania, but to say that all scientists (senior and junior) now need tools for metric research evaluation to reduce complexity on an everyday basis (and develop strategies for research, teaching, publishing and networking) - is scientometrics developed enough to be a reliable tool? Context: for the Max Planck Digital Library I am looking into the potential of digital libraries and repositories for the generation, collection and evaluation of scientometric data. Chris Armbruster http://ssrn.com/author=434782 -----Original Message----- From: ASIS&T Special Interest Group on Metrics on behalf of Loet Leydesdorff Sent: Tue 18/12/2007 20:50 To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data Dear Christina and colleagues: Incorrect journal abbreviations and non-ISI sources Citations http://users.fmg.uva.nl/lleydesdorff/list.htm Table 4: Non-ISI sources and incorrect journal abbreviations with more than 10,000 citations in the JCR 2005. "With its 54,139 citations, the J Phys Chem-US would belong to the top-50 journals of the database if it were included. However, this journal is included in the ISI-database under the abbreviations J Phys Chem A and J Phys Chem B with 32,086 and 59,826 citations, respectively. For some journals, however, the different spellings in the references may have large implications. Bornman et al. (2007, at p. 105) found 21.5% overestimation of the impact factor of Angewandte Chemie in 2005 because of authors providing references to both the German and international editions of this journal (Marx, 2001)." Source: " Caveats for the Use of Citation Indicators in Research and Journal Evaluations," Journal of the American Society for Information Science and Technology, February 2008 (forthcoming; available as Early View). With best wishes, Loet Leydesdorff Amsterdam School of Communications Research (ASCoR) Kloveniersburgwal 48, 1012 CX Amsterdam http://users.fmg.uva.nl/lleydesdorff/list.htm > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Pikas, Christina K. > Sent: Tuesday, December 18, 2007 3:37 PM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > > Interesting article -- this came across another listserv I'm on. > - Calls for an audit of WoS data. > - Suggests median measure > - Points to errors caused by article type designations. > > > Christina K. Pikas, MLS > R.E. Gibson Library & Information Center > The Johns Hopkins University Applied Physics Laboratory > Voice 240.228.4812 (Washington), 443.778.4812 (Baltimore) > Fax 443.778.5353 > > From Jessica.Shepherd at GUARDIAN.CO.UK Wed Dec 19 03:00:58 2007 From: Jessica.Shepherd at GUARDIAN.CO.UK (Jessica Shepherd) Date: Wed, 19 Dec 2007 08:00:58 +0000 Subject: Jessica Shepherd/Guardian/GNL is out of the office. Message-ID: I will be out of the office starting 19/12/2007 and will not return until 02/01/2008. I will be out of the office between 19/12 and 02/01. For any urgent messages, please contact Sharon Bainbridge on 020 72399943 or Stephanie Kerstein on 020 7239 9559. Many thanks. Jessica ------------------------------------------------------------------ Visit Guardian Unlimited - the UK's most popular newspaper website http://guardian.co.uk http://observer.co.uk ------------------------------------------------------------------ The Newspaper Marketing Agency Opening Up Newspapers http://www.nmauk.co.uk ------------------------------------------------------------------ This e-mail and all attachments are confidential and may also be privileged. If you are not the named recipient, please notify the sender and delete the e-mail and all attachments immediately. Do not disclose the contents to another person. You may not use the information for any purpose, or store, or copy, it in any way. Guardian News & Media Limited is not liable for any computer viruses or other material transmitted with or as part of this e-mail. You should employ virus checking software. Guardian News & Media Limited A member of Guardian Media Group PLC Registered Office Number 1 Scott Place, Manchester M3 3GG Registered in England Number 908396 From krichel at OPENLIB.ORG Wed Dec 19 03:21:28 2007 From: krichel at OPENLIB.ORG (Thomas Krichel) Date: Wed, 19 Dec 2007 02:21:28 -0600 Subject: Accuracy of Thomson data - decentralising data collection and enhancing the scope of scientometrics? In-Reply-To: <454C4EFF24E347449521ABDC1B63025D0214029B@MAILSRV1.iue.private> Message-ID: Armbruster, Chris writes > One would possibly expect that a decentralised solution would > provide more comprehensive (types of publication, languages etc.) > and more accurate coverage, but one might also worry that the corpus > will be less well defined.... Hence, what would you think if > repositories developed a system of author registration (unique > identifier, institutional affiliation) and provided data? Repositories can't do that. You need a very large cross-repository to do it. RePEc, under my iniative, haze done author and instititution registration. I am working on a cross-discipliary system. I should have an early version of the institutional data out early in January. Help welcome! Cheers, Thomas Krichel http://openlib.org/home/krichel RePEc:per:1965-06-05:thomas_krichel skype: thomaskrichel From loet at LEYDESDORFF.NET Wed Dec 19 03:27:54 2007 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Wed, 19 Dec 2007 09:27:54 +0100 Subject: Accuracy of Thomson data - decentralising data collection and enhancing the scope of scientometrics? In-Reply-To: <454C4EFF24E347449521ABDC1B63025D0214029B@MAILSRV1.iue.private> Message-ID: Dear Chris and colleagues, In my opinion, we have made a lot of progress in terms of data analysis. The quality of the data that one inputs into the analysis is a different issue. There are pros and cons using different data (SCI, Scopus, Google Scholar, etc.) as there are pros and cons using different techniques for the analysis (e.g., different clustering algorithms, similarity criteria, etc.). Nevertheless, I think that we have a state of the art in terms of techniques. I make some of them available as computer programs and lessons for my students at http://www.leydesdorff.net/indicators . If you have suggestions for improvements, please, let me know. With best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Armbruster, Chris > Sent: Wednesday, December 19, 2007 8:45 AM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] Accuracy of Thomson data - > decentralising data collection and enhancing the scope of > scientometrics? > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > To the list: > > Would you trust the situation to improve if digital > repositories (institutional, disciplinary and/or national) > were to provide data in future? > One would possibly expect that a decentralised solution would > provide more comprehensive (types of publication, languages > etc.) and more accurate coverage, but one might also worry > that the corpus will be less well defined.... Hence, what > would you think if repositories developed a system of author > registration (unique identifier, institutional affiliation) > and provided data? > > What is the scope for delivering scientometrics to the > digital workbench of scientists? > I have anecdotal evidence that review panels (for major > grants, tenure etc. - often very senior scientists) routinely > use software and search engines to look up the citation data > and indices of applicants and candidates. If we were not to > dismiss this simply as evaluation mania, but to say that all > scientists (senior and junior) now need tools for metric > research evaluation to reduce complexity on an everyday basis > (and develop strategies for research, teaching, publishing > and networking) - is scientometrics developed enough to be a > reliable tool? > > Context: for the Max Planck Digital Library I am looking into > the potential of digital libraries and repositories for the > generation, collection and evaluation of scientometric data. > > Chris Armbruster > http://ssrn.com/author=434782 > > > > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics on behalf of > Loet Leydesdorff > Sent: Tue 18/12/2007 20:50 > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Christina and colleagues: > > Incorrect journal abbreviations and non-ISI sources > > Citations > > http://users.fmg.uva.nl/lleydesdorff/list.htm > > Table 4: Non-ISI sources and incorrect journal abbreviations > with more than > 10,000 citations in the JCR 2005. > > "With its 54,139 citations, the J Phys Chem-US would belong > to the top-50 > journals of the database if it were included. However, this journal is > included in the ISI-database under the abbreviations J Phys > Chem A and J > Phys Chem B with 32,086 and 59,826 citations, respectively. For some > journals, however, the different spellings in the references > may have large > implications. Bornman et al. (2007, at p. 105) found 21.5% > overestimation of > the impact factor of Angewandte Chemie in 2005 because of > authors providing > references to both the German and international editions of > this journal > (Marx, 2001)." > > Source: " > > Caveats for the Use of Citation Indicators in Research and Journal > Evaluations," Journal of the American Society for Information > Science and > Technology, February 2008 (forthcoming; available as Early View). > > With best wishes, > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR) > Kloveniersburgwal 48, 1012 CX Amsterdam > http://users.fmg.uva.nl/lleydesdorff/list.htm > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Pikas, > Christina K. > > Sent: Tuesday, December 18, 2007 3:37 PM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > Interesting article -- this came across another listserv I'm on. > > - Calls for an audit of WoS data. > > - Suggests median measure > > - Points to errors caused by article type designations. > > > > > > Christina K. Pikas, MLS > > R.E. Gibson Library & Information Center > > The Johns Hopkins University Applied Physics Laboratory > > Voice 240.228.4812 (Washington), 443.778.4812 (Baltimore) > > Fax 443.778.5353 > > > > > From harnad at ECS.SOTON.AC.UK Wed Dec 19 05:52:20 2007 From: harnad at ECS.SOTON.AC.UK (Stevan Harnad) Date: Wed, 19 Dec 2007 10:52:20 +0000 Subject: University Cross-Check on Thomson ISI Citation Metrics In-Reply-To: <454C4EFF24E347449521ABDC1B63025D0214029B@MAILSRV1.iue.private> Message-ID: ** Cross-Posted ** On Wed, 19 Dec 2007, Armbruster, Chris wrote: >> Subject: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data >> Incorrect journal abbreviations and non-ISI sources Citations >> http://users.fmg.uva.nl/lleydesdorff/list.htm >> Calls for an audit of WoS data. > > Would you trust the situation to improve if digital repositories > (institutional, disciplinary and/or national) were to provide data > in future? Of course -- and particularly institutional repositories (IRs), since the universities and research institutions themselves are the primary content-providers! http://roar.eprints.org/ > One would possibly expect that a decentralised solution > would provide more comprehensive (types of publication, languages > etc.) and more accurate coverage, Not because it was "decentralized" but because the authors' institutions (not their journals!) are the primary content-providers and have a direct stake in the discoverability, validity and attribution of their own research output. > but one might also worry that the corpus will be less well defined.... How will it be less well defined? All journal articles -- their full texts and metadata, *including their cited references* -- will be deposited, tagged, harvestable, harvested, indexed and analyzed by (open and transparent) software, globally. The reference lists of each article will provide a redundant, distributed cross-check on all the articles they cite, many times over. Central indexes of journals and their contents (like Thomson ISI) will provide further cross-checks on validity, and will be able to correct their own data against the primary OA database. But the prerequisite for all of this is that the primary content must be provided in the author's own institution's Open Access (OA) IR. http://openaccess.eprints.org/index.php?/archives/338-guid.html > Hence, what would you think > if repositories developed a system of author registration (unique > identifier, institutional affiliation) and provided data? It is an obvious and natural solution -- once all the primary content is being systematically self-archived in the author's own OA IR. (Not while only 15% of it is being haphazardly deposited willy-nilly -- in IRs, Central Repositories, and on arbitrary websites.) The way to ensure that all of this is systematically and reliably done is for researchers' own institutions (and funders) to mandate the self-archiving of their own published research output: http://openaccess.eprints.org/index.php?/archives/71-guid.html > What is the scope for delivering scientometrics to the digital > workbench of scientists? I have anecdotal evidence that review > panels (for major grants, tenure etc. - often very senior scientists) > routinely use software and search engines to look up the citation data > and indices of applicants and candidates. All that is need is for research institutions and funders to mandate that the all-important primary data itself be provided (by mandating self-archiving). The rest (the harvesting and the software) will take care of itself, many times over. It is that primary distributed institutional OA database itself that is still missing today, and urgently overdue. > If we were not to dismiss > this simply as evaluation mania, but to say that all scientists > (senior and junior) now need tools for metric research evaluation to > reduce complexity on an everyday basis (and develop strategies for > research, teaching, publishing and networking) - is scientometrics > developed enough to be a reliable tool? What is not "developed enough" is university and research-funder policy for exposing and managing their own research assets online -- for which the essential component is each researcher's institution's own OA IR, reliably filled with each institution's own research article output. Scientometrics is waiting to data-mine that OA corpus, once universities (and funders) get around to doing the obvious (and already overdue) thing in the online era: to mandate the deposit of their research output in the researcher's OA IR. http://openaccess.eprints.org/index.php?/archives/136-guid.html http://www.eprints.org/openaccess/policysignup/ > Context: for the Max Planck Digital Library I am looking into the > potential of digital libraries and repositories for the generation, > collection and evaluation of scientometric data. Splendid! And are the Max-Planck Institutes at long last getting around to implementing their "Berlin Declaration" by mandating the deposit of their own research output in their own IR (and making the IR OA)? http://www.dlib.org/dlib/march05/harnad/03harnad.html http://www.eprints.org/events/berlin3/outcomes.html For some idea of how long this has been taking at the MPIs, Google: site:users.ecs.soton.ac.uk amsci ("max planck" OR mpi) Brody, T., Carr, L., Gingras, Y., Hajjem, C., Harnad, S. and Swan, A. (2007) Incentivizing the Open Access Research Web: Publication-Archiving, Data-Archiving and Scientometrics. CTWatch Quarterly 3(3). http://eprints.ecs.soton.ac.uk/14418/ Harnad, S. (2007) Open Access Scientometrics and the UK Research Assessment Exercise. Proceedings of 11th Annual Meeting of the International Society for Scientometrics and Informetrics 11(1) : 27-33, Madrid, Spain. Torres-Salinas, D. and Moed, H. F., Eds. http://eprints.ecs.soton.ac.uk/13804/ Shadbolt, N., Brody, T., Carr, L. and Harnad, S. (2006) The Open Research Web: A Preview of the Optimal and the Inevitable, in Jacobs, N., Eds. Open Access: Key Strategic, Technical and Economic Aspects. Chandos. http://eprints.ecs.soton.ac.uk/12453/ Stevan Harnad AMERICAN SCIENTIST OPEN ACCESS FORUM: http://amsci-forum.amsci.org/archives/American-Scientist-Open-Access-Forum.html http://www.ecs.soton.ac.uk/~harnad/Hypermail/Amsci/ UNIVERSITIES and RESEARCH FUNDERS: If you have adopted or plan to adopt an policy of providing Open Access to your own research article output, please describe your policy at: http://www.eprints.org/signup/sign.php http://openaccess.eprints.org/index.php?/archives/71-guid.html http://openaccess.eprints.org/index.php?/archives/136-guid.html OPEN-ACCESS-PROVISION POLICY: BOAI-1 ("Green"): Publish your article in a suitable toll-access journal http://romeo.eprints.org/ OR BOAI-2 ("Gold"): Publish your article in an open-access journal if/when a suitable one exists. http://www.doaj.org/ AND in BOTH cases self-archive a supplementary version of your article in your own institutional repository. http://www.eprints.org/self-faq/ http://archives.eprints.org/ http://openaccess.eprints.org/ From garfield at CODEX.CIS.UPENN.EDU Wed Dec 19 10:23:56 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Wed, 19 Dec 2007 10:23:56 -0500 Subject: Van den Besselaar, P;et al, Variety in web spheres between research fields: Content and function Editor(s): TorresSalinas, D; Moed, HF, PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II 85-94, 2007 Message-ID: Email: p.vandenbesselaar at rathenau.nl Author(s): Van den Besselaar, P (Van den Besselaar, Peter); Heimeriks, G (Heimeriks, Gaston); Frenken, K (Frenken, Koen) Title: Variety in web spheres between research fields: Content and function Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 85-94, 2007 Cited Reference Count: 25 Language: English Document Type: Article Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: webometrics; indicators; research fields KeyWords Plus: SCIENCE; COMMUNICATION Abstract: In this paper we investigate the different ways the Internet and the W W W are used in different research fields. The question we address is: is the variation in use related to the type of research field - especially with the difference between basic research and more application oriented research? We compare fields from sciences, life sciences, social sciences and humanities, and among these some are more application oriented than others. The results indicate that the observed differences between the disciplinary websites are not systematically related to application orientation. We discuss other differences between research fields that may explain the use and nature of the websites. Addresses: Univ Amsterdam, Rathenau Inst, Netherlands Ctr Sci Syst Assessment, Amsterdam, NL-1012 WX Netherlands. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM ISBN: ***************** Cited References: *ESFRI 1 EUR ROADM NEW LARG : 2006 *OECD GLOB RES VILL INF CO : 1998 ARROYO N DESCRIPTION WEB DATA : 2003 BARJAK F INTEGRATION INTERNET : 2004 BONACCORSI A BETTER POLICIES VERS : 2005 DASGUPTA P TOWARD A NEW ECONOMICS OF SCIENCE RES POLICY 23 : 487 1994 DAVID PA INT SOCIAL SCI J MAR : 9 2002 DEJONG H The computer revolution in science: Steps towards the realization of computer-supported discovery environments ARTIF INTELL 91 : 225 1997 ETZKOWITZ H U GLOBAL KNOWLEDGE E : 1997 GIBBONS MC NEW PRODUCTION KNOWL : 1994 GOODING DC SCI EXPT ITS PHILOS : 2002 HARRIES G Hyperlinks as a data source for science mapping J INFORM SCI 30 : 436 2004 HEIMERIKS G CYBERMETRICS 10 : 2006 HEIMERIKS G Mapping communication and collaboration in heterogeneous research networks SCIENTOMETRICS 58 : 391 2003 KLING R Not just a matter of time: Field differences and the shaping of electronic media in supporting scientific communication J AM SOC INFORM SCI 51 : 1306 2000 NELSON RR The market economy, and the scientific commons RES POLICY 33 : 455 2004 NENTWICH M CYBERSCIENCE RES AGE : 2003 PRICE DD THE SCIENCE-TECHNOLOGY RELATIONSHIP, THE CRAFT OF EXPERIMENTAL SCIENCE, AND POLICY FOR THE IMPROVEMENT OF HIGH TECHNOLOGY INNOVATION RES POLICY 13 : 3 1984 RIP A FUTURE SCI HUMANITIE : 2002 STOKES D PASTEURS QUADRANT BA : 1997 VANDENBESSELAAR P IN PRESS NEW MEDIA C VANDENBESSELAAR P KNOWLEDGE NETWORKS : 2007 VASILEIADOU CYBERMETRICS 10 : 2006 WHITLEY R INTELLECTUAL SOCIAL : 2000 WILKINSON D Motivations for academic web site interlinking: evidence for the Web as a novel source of information on informal scholarly communication J INFORM SCI 29 : 49 2003 From Christina.Pikas at JHUAPL.EDU Wed Dec 19 10:25:55 2007 From: Christina.Pikas at JHUAPL.EDU (Pikas, Christina K.) Date: Wed, 19 Dec 2007 10:25:55 -0500 Subject: Accuracy of Thomson data - decentralising data collection and enhancing the scope of scientometrics? In-Reply-To: A<002801c84219$0efcc000$6702a8c0@loet> Message-ID: I do think that a promising line of research is information fusion from the multiple databases -- getting Loet et al the good quality data for their analyses. Sure some platforms "de-dup" but I think there's a need for quantifiable and testable rules and metrics to understand how this can be done in a justifiable manner. I think we've seen that multiple sources need to be searched -- particularly in areas such as applied math and computer science. Adding in institutional and disciplinary repositories is important, but would be extremely difficult from a data cleansing point of view (plus the theoretical part: what is a work? Which work? Which version? How to roll up citations to different versions? Is a citation to a book chapter the "same" as a citation to a conference paper in x domain? -- others are taking on some of these issues). (Continuing a sort of stream of consciousness -- would some of the analysis that's gone into FRBR be helpful?) Recent articles I've seen have used (hundreds if not thousands of) hours of graduate student time to process the retrieved records, but that isn't really scalable and it seems unnecessary with all of the developments in areas like sensor fusion and information fusion from multiple sensors (in science and engineering). If this work has already been done, it surely hasn't been applied in the articles I've read. Christina Christina K. Pikas, MLS R.E. Gibson Library & Information Center The Johns Hopkins University Applied Physics Laboratory Voice 240.228.4812 (Washington), 443.778.4812 (Baltimore) Fax 443.778.5353 -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Loet Leydesdorff Sent: Wednesday, December 19, 2007 3:28 AM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] Accuracy of Thomson data - decentralising data collection and enhancing the scope of scientometrics? Dear Chris and colleagues, In my opinion, we have made a lot of progress in terms of data analysis. The quality of the data that one inputs into the analysis is a different issue. There are pros and cons using different data (SCI, Scopus, Google Scholar, etc.) as there are pros and cons using different techniques for the analysis (e.g., different clustering algorithms, similarity criteria, etc.). Nevertheless, I think that we have a state of the art in terms of techniques. I make some of them available as computer programs and lessons for my students at http://www.leydesdorff.net/indicators . If you have suggestions for improvements, please, let me know. With best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Armbruster, Chris > Sent: Wednesday, December 19, 2007 8:45 AM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] Accuracy of Thomson data - decentralising > data collection and enhancing the scope of scientometrics? > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > To the list: > > Would you trust the situation to improve if digital repositories > (institutional, disciplinary and/or national) were to provide data in > future? > One would possibly expect that a decentralised solution would provide > more comprehensive (types of publication, languages > etc.) and more accurate coverage, but one might also worry that the > corpus will be less well defined.... Hence, what would you think if > repositories developed a system of author registration (unique > identifier, institutional affiliation) and provided data? > > What is the scope for delivering scientometrics to the digital > workbench of scientists? > I have anecdotal evidence that review panels (for major grants, tenure > etc. - often very senior scientists) routinely use software and search > engines to look up the citation data and indices of applicants and > candidates. If we were not to dismiss this simply as evaluation mania, > but to say that all scientists (senior and junior) now need tools for > metric research evaluation to reduce complexity on an everyday basis > (and develop strategies for research, teaching, publishing and > networking) - is scientometrics developed enough to be a reliable > tool? > > Context: for the Max Planck Digital Library I am looking into the > potential of digital libraries and repositories for the generation, > collection and evaluation of scientometric data. > > Chris Armbruster > http://ssrn.com/author=434782 > > > > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics on behalf of Loet > Leydesdorff > Sent: Tue 18/12/2007 20:50 > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Christina and colleagues: > > Incorrect journal abbreviations and non-ISI sources > > Citations > > http://users.fmg.uva.nl/lleydesdorff/list.htm > > Table 4: Non-ISI sources and incorrect journal abbreviations with more > than 10,000 citations in the JCR 2005. > > "With its 54,139 citations, the J Phys Chem-US would belong to the > top-50 journals of the database if it were included. However, this > journal is included in the ISI-database under the abbreviations J Phys > Chem A and J Phys Chem B with 32,086 and 59,826 citations, > respectively. For some journals, however, the different spellings in > the references may have large implications. Bornman et al. (2007, at > p. 105) found 21.5% overestimation of the impact factor of Angewandte > Chemie in 2005 because of authors providing references to both the > German and international editions of this journal (Marx, 2001)." > > Source: " > > Caveats for the Use of Citation Indicators in Research and Journal > Evaluations," Journal of the American Society for Information Science > and Technology, February 2008 (forthcoming; available as Early View). > > With best wishes, > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR) Kloveniersburgwal > 48, 1012 CX Amsterdam http://users.fmg.uva.nl/lleydesdorff/list.htm > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Pikas, > Christina K. > > Sent: Tuesday, December 18, 2007 3:37 PM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > Interesting article -- this came across another listserv I'm on. > > - Calls for an audit of WoS data. > > - Suggests median measure > > - Points to errors caused by article type designations. > > > > > > Christina K. Pikas, MLS > > R.E. Gibson Library & Information Center The Johns Hopkins > > University Applied Physics Laboratory Voice 240.228.4812 > > (Washington), 443.778.4812 (Baltimore) Fax 443.778.5353 > > > > > From garfield at CODEX.CIS.UPENN.EDU Wed Dec 19 11:06:39 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Wed, 19 Dec 2007 11:06:39 -0500 Subject: Bhattacharya, S, Impact of Indian patents: Assessment through citation analysis Editor(s): TorresSalinas, D; Moed, HF, Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II 95-99, 2007 Message-ID: Email: Sujit_academic at yahoo.com Author(s): Bhattacharya, S (Bhattacharya, Sujit) Title: Impact of Indian patents: Assessment through citation analysis Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 95-99, 2007 Cited Reference Count: 16 Language: English Document Type: Article Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: citation analysis; forward citation; impact assessment KeyWords Plus: RIGHTS Abstract: The present study examined the impact of patents granted to Indian organisations by the USPTO during the period 1990-2002. The impact analysis was based on the patents cited by other patents and journal articles. The citing and cited data was disaggregated at different levels to bring out the various characteristics. The impact of patents of 'prolific' patenting organisation, impact of patents in different sectors/sub-sectors, highly cited patents, scientific fields/sub-fields that were citing Indian patents, and organisations that were noticing these patents, ete were uncovered. The importance of this exercise for policy and strategic purpose are discussed. Addresses: Natl Inst Sci Technol & Dev Studies, New Delhi, 110012 India. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM BHATTACHARYA B INDIAN PATENTING ACT : 2005 CHEN CM Tracing knowledge diffusion SCIENTOMETRICS 59 : 199 2004 GULLEC D Applications, grants and the value of patent ECON LETT 69 : 109 2000 HALL B Market value and patent citations 7741 NBER : 2000 HARHOFF D Citations, family size, opposition and the value of patent rights RES POLICY 32 : 1343 2003 HARHOFF D Citation frequency and the value of patented inventions REV ECON STAT 81 : 511 1999 LANJOUW J Stylised facts of patent litigation: Value, scope and ownership 6297 NBER : 1997 LANJOUW J The quality of ideas: measuring innovation with multiple indicators 7345 NBER : 1999 LERNER J THE IMPORTANCE OF PATENT SCOPE - AN EMPIRICAL-ANALYSIS RAND J ECON 25 : 319 1994 NARIN F Tech-Line Background Paper TECH LINE BACKGROUND : 1993 PRICE DJD NETWORKS OF SCIENTIFIC PAPERS SCIENCE 149 : 510 1965 ROSENKOPF L Beyond local search: Boundary-spanning, exploration, and impact in the optical disk industry STRATEGIC MANAGE J 22 : 287 2001 SAPSALIS E The institutional sources of knowledge and the value of Academic patents P 5 TRIPL HEL C CAP : 2005 SHANE S Technological opportunities and new firm creation MANAGE SCI 47 : 205 2001 SHERRY EF Royalties, evolving patent rights, and the value of innovation RES POLICY 33 : 179 2004 TRAJTENBERG M A PENNY FOR YOUR QUOTES - PATENT CITATIONS AND THE VALUE OF INNOVATIONS RAND J ECON 21 : 172 1990 From Nina.Lane at DIA.MIL Wed Dec 19 11:33:10 2007 From: Nina.Lane at DIA.MIL (Lane, Nina M.) Date: Wed, 19 Dec 2007 11:33:10 -0500 Subject: Help Please on WIKI and/or DATABASE Metrics Software In-Reply-To: A<934BB0B6D8A02C42BC6099FDE8149CCD02739936@aplesjustice.dom1.jhuapl.edu> Message-ID: Hi,all, I'm new to this group. I have a project to collect info & write a paper on the literature on Metrics for either Wikis or content databases. [We have added metadata to both.] Any thoughts, direction or experience would be welcome. Also has anyone had experience with using software on the Wiki to help w/ metric collection? Thank you all for help! Happy Holidays! Sincerely, Nina Nina Lane W 202-231-1145 Nina.lane at dia.mil From garfield at CODEX.CIS.UPENN.EDU Wed Dec 19 11:57:40 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Wed, 19 Dec 2007 11:57:40 -0500 Subject: Onyancha, OB; Ocholla, DN, Is HIV/AIDS in Africa distinct? What can we learn from an analysis of the literature? (Article, English),PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.100-111 Message-ID: Email: b_onyancha at yahoo.com Author(s): Onyancha, OB (Onyancha, Omwoyo Bosire); Ocholla, DN (Ocholla, Dennis N.) Title: Is HIV/AIDS in Africa distinct? What can we learn from an analysis of the literature? Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 100-111, 2007 Cited Reference Count: 30 Language: English Document Type: Article Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: AIDS; Africa KeyWords Plus: CO-WORD ANALYSIS; SCIENCE Abstract: This paper investigates the notion held by several people that HIV/AIDS in Africa is unique by use of the published literature. Using co- word and factor analyses of MEDLINE-extracted HIV/AIDS records, this study used five lists of terms to investigate the related-ness of various factors and diseases to HIV/AIDS. The lists consisted of risk factors, sexually transmitted diseases, tropical diseases, opportunistic diseases, and predisposing factors. Data (i.e. words.txt - consisting of keywords/phrases describing the aforementioned factors and diseases; and text.txt - containing HIV/AIDS papers' titles) were analyzed using TI computer-aided application software, developed by Prof. Loet Leydesdorff. Results revealed that several factors and diseases that are pre-dominant in Sub-Saharan Africa exhibited strong and high pattern of co-occurrences with HIV/AIDS, implying close associated-ness with the epidemic in the region. Further areas of research, whose results will be used to make conclusive observations and arguments concerning the uniqueness of HIV/AIDS in Sub-Saharan Africa, are recommended. Addresses: Univ Eastern Africa, Eldoret, Kenya. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: *UNICEF MAL HIV AIDS : 2003 *WHO MAL HIV AIDS INT IMP : 2004 AIZAWA A Calculating association between technical terms based on co-occurences in keyword lists of academic papers SYST COMPUT JPN 34 : 85 2003 AMUYUNZUNYAMONG.M HIV/AIDS in Kenya: Moving beyond policy and rhetoric AFRICAN SOCIOLOGICAL 5 : 2001 BALDWIN C Ethics and dementia: mapping the literature by bibliometric analysis INT J GERIATR PSYCH 18 : 41 2003 BOOKSTEIN A Adapting measures of clumping strength to assess term-term similarity J AM SOC INF SCI TEC 54 : 611 2003 BOOKSTEIN A Discovering term occurrence structure in text J AM SOC INF SCI TEC 52 : 476 2001 CALLON M MAPPING DYNAMICS SCI : 1986 CALLON M Co-word analysis as a tool for describing the network of interactions between basic and technological research: The case of polymer chemistry SCIENTOMETRICS 22 : 153 1991 COHEN J Is AIDS in Africa a distinct disease? SCIENCE 288 : 2153 2000 CONLON CP MOSBYS COLOR ATLAS T : 2004 COULTER N Software engineering as seen through its research literature: A study in co-word analysis J AM SOC INFORM SCI 49 : 1206 1998 COURTIAL JP A COWORD ANALYSIS OF SCIENTOMETRICS SCIENTOMETRICS 31 : 251 1994 COURTIAL JP A CO-WORD STUDY OF ARTIFICIAL-INTELLIGENCE SOC STUD SCI 19 : 301 1989 DING Y Bibliometric cartography of information retrieval research by using co- word analysis INFORM PROCESS MANAG 37 : 817 2001 HUI JYH High-resolution computed tomography is useful for early diagnosis of severe acute respiratory syndrome-associated coronavirus pneumonia in patients with normal chest radiographs J COMPUT ASSIST TOMO 28 : 1 2004 JACOBS N Co-term network analysis as a means of describing the information landscapes of knowledge communities across sectors J DOC 58 : 548 2002 KOPCSA A Science and technology mapping: A new iteration model for representing multidimensional relationships JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE 49 : 7 1998 KOSTOFF RN SCI TECHNOLOGY METRI : 2001 KRSUL I COWORD ANAL TOOL : 2002 LAW J MAPPING ACIDIFICATION RESEARCH - A TEST OF THE CO-WORD METHOD SCIENTOMETRICS 23 : 417 1992 LEYDESDORFF L FULLTEXT EXE FULL TE : 2004 LEYDESDORFF L WORDS AND CO-WORDS AS INDICATORS OF INTELLECTUAL ORGANIZATION RES POLICY 18 : 209 1989 MEDECINS SF HIV AIDS : 2003 NORDBERG E COMMUNICABLE DIS MAN : 2001 ONYANCHA OB An informetric investigation of the relatedness of opportunistic infections to HIV/AIDS INFORM PROCESS MANAG 41 : 1573 2005 SCHNEIDER JW Introduction to bibliometrics for construction and maintenance of thesauri - Methodical considerations J DOC 60 : 524 2004 TURNER WA Packaging information for peer review: new co-word analysis techniques HDB QUANTITATIVE STU : 291 1988 WHITTAKER J CREATIVITY AND CONFORMITY IN SCIENCE - TITLES, KEYWORDS AND CO-WORD ANALYSIS SOC STUD SCI 19 : 473 1989 YITZHAKI M Relation of title length of journal article to length of article P 8 INT C SCI INF SY 2 : 759 2001 From bgsloan2 at YAHOO.COM Wed Dec 19 12:06:16 2007 From: bgsloan2 at YAHOO.COM (B.G. Sloan) Date: Wed, 19 Dec 2007 09:06:16 -0800 Subject: Accuracy of Thomson data - decentralising data collection and enhancing the scope of scientometrics? In-Reply-To: <934BB0B6D8A02C42BC6099FDE8149CCD02739936@aplesjustice.dom1.jhuapl.edu> Message-ID: For some reason this reminded me of something I did a few years ago, my "Personal Citation Index". It was pretty much sort of a throwaway exercise to satisfy my own curiousity, but it did wind up getting cited seven times in the Web of Science. It's not online anymore, but you can still view it at the Internet Archive: http://tinyurl.com/3bpoxz I remember the process being pretty labor-intensive, even though it was a relatively small project. And I remember grappling with what sorts of things/citations I should be counting. Bernie Sloan "Pikas, Christina K." wrote: Adminstrative info for SIGMETRICS (for example unsubscribe): http://web.utk.edu/~gwhitney/sigmetrics.html I do think that a promising line of research is information fusion from the multiple databases -- getting Loet et al the good quality data for their analyses. Sure some platforms "de-dup" but I think there's a need for quantifiable and testable rules and metrics to understand how this can be done in a justifiable manner. I think we've seen that multiple sources need to be searched -- particularly in areas such as applied math and computer science. Adding in institutional and disciplinary repositories is important, but would be extremely difficult from a data cleansing point of view (plus the theoretical part: what is a work? Which work? Which version? How to roll up citations to different versions? Is a citation to a book chapter the "same" as a citation to a conference paper in x domain? -- others are taking on some of these issues). (Continuing a sort of stream of consciousness -- would some of the analysis that's gone into FRBR be helpful?) Recent articles I've seen have used (hundreds if not thousands of) hours of graduate student time to process the retrieved records, but that isn't really scalable and it seems unnecessary with all of the developments in areas like sensor fusion and information fusion from multiple sensors (in science and engineering). If this work has already been done, it surely hasn't been applied in the articles I've read. Christina Christina K. Pikas, MLS R.E. Gibson Library & Information Center The Johns Hopkins University Applied Physics Laboratory Voice 240.228.4812 (Washington), 443.778.4812 (Baltimore) Fax 443.778.5353 -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Loet Leydesdorff Sent: Wednesday, December 19, 2007 3:28 AM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] Accuracy of Thomson data - decentralising data collection and enhancing the scope of scientometrics? Dear Chris and colleagues, In my opinion, we have made a lot of progress in terms of data analysis. The quality of the data that one inputs into the analysis is a different issue. There are pros and cons using different data (SCI, Scopus, Google Scholar, etc.) as there are pros and cons using different techniques for the analysis (e.g., different clustering algorithms, similarity criteria, etc.). Nevertheless, I think that we have a state of the art in terms of techniques. I make some of them available as computer programs and lessons for my students at http://www.leydesdorff.net/indicators . If you have suggestions for improvements, please, let me know. With best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Armbruster, Chris > Sent: Wednesday, December 19, 2007 8:45 AM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] Accuracy of Thomson data - decentralising > data collection and enhancing the scope of scientometrics? > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > To the list: > > Would you trust the situation to improve if digital repositories > (institutional, disciplinary and/or national) were to provide data in > future? > One would possibly expect that a decentralised solution would provide > more comprehensive (types of publication, languages > etc.) and more accurate coverage, but one might also worry that the > corpus will be less well defined.... Hence, what would you think if > repositories developed a system of author registration (unique > identifier, institutional affiliation) and provided data? > > What is the scope for delivering scientometrics to the digital > workbench of scientists? > I have anecdotal evidence that review panels (for major grants, tenure > etc. - often very senior scientists) routinely use software and search > engines to look up the citation data and indices of applicants and > candidates. If we were not to dismiss this simply as evaluation mania, > but to say that all scientists (senior and junior) now need tools for > metric research evaluation to reduce complexity on an everyday basis > (and develop strategies for research, teaching, publishing and > networking) - is scientometrics developed enough to be a reliable > tool? > > Context: for the Max Planck Digital Library I am looking into the > potential of digital libraries and repositories for the generation, > collection and evaluation of scientometric data. > > Chris Armbruster > http://ssrn.com/author=434782 > > > > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics on behalf of Loet > Leydesdorff > Sent: Tue 18/12/2007 20:50 > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Christina and colleagues: > > Incorrect journal abbreviations and non-ISI sources > > Citations > > http://users.fmg.uva.nl/lleydesdorff/list.htm > > Table 4: Non-ISI sources and incorrect journal abbreviations with more > than 10,000 citations in the JCR 2005. > > "With its 54,139 citations, the J Phys Chem-US would belong to the > top-50 journals of the database if it were included. However, this > journal is included in the ISI-database under the abbreviations J Phys > Chem A and J Phys Chem B with 32,086 and 59,826 citations, > respectively. For some journals, however, the different spellings in > the references may have large implications. Bornman et al. (2007, at > p. 105) found 21.5% overestimation of the impact factor of Angewandte > Chemie in 2005 because of authors providing references to both the > German and international editions of this journal (Marx, 2001)." > > Source: " > > Caveats for the Use of Citation Indicators in Research and Journal > Evaluations," Journal of the American Society for Information Science > and Technology, February 2008 (forthcoming; available as Early View). > > With best wishes, > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR) Kloveniersburgwal > 48, 1012 CX Amsterdam http://users.fmg.uva.nl/lleydesdorff/list.htm > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Pikas, > Christina K. > > Sent: Tuesday, December 18, 2007 3:37 PM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > Interesting article -- this came across another listserv I'm on. > > - Calls for an audit of WoS data. > > - Suggests median measure > > - Points to errors caused by article type designations. > > > > > > Christina K. Pikas, MLS > > R.E. Gibson Library & Information Center The Johns Hopkins > > University Applied Physics Laboratory Voice 240.228.4812 > > (Washington), 443.778.4812 (Baltimore) Fax 443.778.5353 > > > > > --------------------------------- Never miss a thing. Make Yahoo your homepage. -------------- next part -------------- An HTML attachment was scrubbed... URL: From garfield at CODEX.CIS.UPENN.EDU Wed Dec 19 12:12:56 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Wed, 19 Dec 2007 12:12:56 -0500 Subject: Boyack, KW; Borner, K; Klavans, R, Mapping the structure and evolution of chemistry research (Article, English) PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.112-123 Message-ID: Email: kboyack at sandia.gov Author(s): Boyack, KW (Boyack, Kevin W.); Borner, K (Boerner, Katy); Klavans, R (Klavans, Richard) Title: Mapping the structure and evolution of chemistry research Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 112-123, 2007 Language: English Document Type: Article Cited Reference Count: 17 Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: mapping chemistry; journal mapping; dynamics; diffusion KeyWords Plus: JOURNAL COCITATION ANALYSIS; SCIENCE-CITATION-INDEX; MAPS Abstract: How does our collective scholarly knowledge grow over time? What major areas of science exist and how are they interlinked? Which areas are major knowledge producers; which ones are consumers? Computational scientometrics - the application of bibliometric/scientometric methods to large-scale scholarly datasets - and the communication of results via maps of science might help us answer these questions. This paper represents the results of a prototype study that aims to map the structure and evolution of chemistry research over a 30 year time frame. Information from the combined Science (SCIE) and Social Science (SSCI) Citations Indexes from 2002 was used to generate a disciplinary map of 7.227 journals and 671 journal clusters. Clusters relevant to study the structure and evolution of chemistry were identified using JCR categories and were further clustered into 14 disciplines. The changing scientific composition of these 14 disciplines and their knowledge exchange via citation linkages was computed. Major changes on the dominance, influence, and role of Chemistry, Biology, Biochemistry, and Bioengineering over these 30 years are discussed. The paper concludes with suggestions for future work. Addresses: Sandia Natl Labs, Albuquerque, NM 87185 USA. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: BOYACK KW Mapping the backbone of science SCIENTOMETRICS 64 : 351 2005 CHEN CM CiteSpace II: Detecting and visualizing emerging trends and transient patterns in scientific literature J AM SOC INF SCI TEC 57 : 359 2006 DAVIDSON GS Cluster stability and the use of noise in interpretation of clustering P IEEE INF VIS 2001 : 23 2001 DING Y Journal as markers of intellectual space: Journal co-citation analysis of information Retrieval area, 1987-1997 SCIENTOMETRICS 47 : 55 2000 KLAVANS R Identifying a better measure of relatedness for mapping science J AM SOC INF SCI TEC 57 : 251 2006 KLAVANS R Quantitative evaluation of large maps of science SCIENTOMETRICS 68 : 475 2006 LEYDESDORFF L Betweenness centrality as an indicator of the interdisciplinarity of scientific journals 9 INT C SCI TECHN IN : 2006 LEYDESDORFF L Clusters and maps of science journals based on bi-connected graphs in Journal Citation Reports J DOC 60 : 371 2004 LEYDESDORFF L Top-down decomposition of the Journal Citation Report of the Social Science Citation Index: Graph- and factor-analytical approaches SCIENTOMETRICS 60 : 159 2004 LEYDESDORFF L VARIOUS METHODS FOR THE MAPPING OF SCIENCE SCIENTOMETRICS 11 : 295 1987 MCCAIN KW Neural networks research in context: A longitudinal journal cocitation analysis of an emerging interdisciplinary field SCIENTOMETRICS 41 : 389 1998 MORRIS TA The structure of medical informatics journal literature J AM MED INFORM ASSN 5 : 448 1998 MOYAANEGON F A new technique for building maps of large scientific domains based on the cocitation of classes and categories SCIENTOMETRICS 61 : 129 2004 NARIN F INTERRELATIONSHIPS OF SCIENTIFIC JOURNALS J AM SOC INFORM SCI 23 : 323 1972 SAMOYLENKO I Visualizing the scientific world and its evolution J AM SOC INF SCI TEC 57 : 1461 2006 SMALL H CLUSTERING THE SCIENCE CITATION INDEX USING CO-CITATIONS .2. MAPPING SCIENCE SCIENTOMETRICS 8 : 321 1985 TSAY MY Journal co-citation analysis of semiconductor literature SCIENTOMETRICS 57 : 7 2003 From loet at LEYDESDORFF.NET Wed Dec 19 13:24:37 2007 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Wed, 19 Dec 2007 19:24:37 +0100 Subject: Accuracy of Thomson data - decentralising data collection and enhancing the scope of scientometrics? In-Reply-To: <934BB0B6D8A02C42BC6099FDE8149CCD02739936@aplesjustice.dom1.jhuapl.edu> Message-ID: Dear Christina and colleagues, I was thinking along similar lines and therefore decided to write a routine which allows me to fuse Scopus data with ISI data. The first (preliminary version) is available at http://www.leydesdorff.net/software/scop2isi/index.htm. The program reads a file in the csv-format exported from Scopus and produces a file ISI.txt which is in the tagged format of the ISI database. This file can be used for input into HistCite or to my programs. (One may have to rename the file.) I tested two of my programs and I have to make some adaptations, but it seems doable. The Scopus files contain also mistakes. For example, addresses are often given twice, and sometimes incomplete. With best wishes, Loet > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Pikas, Christina K. > Sent: Wednesday, December 19, 2007 4:26 PM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] Accuracy of Thomson data - > decentralising data collection and enhancing the scope of > scientometrics? > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > I do think that a promising line of research is information > fusion from > the multiple databases -- getting Loet et al the good quality data for > their analyses. Sure some platforms "de-dup" but I think > there's a need > for quantifiable and testable rules and metrics to understand how this > can be done in a justifiable manner. > > I think we've seen that multiple sources need to be searched -- > particularly in areas such as applied math and computer > science. Adding > in institutional and disciplinary repositories is important, but would > be extremely difficult from a data cleansing point of view (plus the > theoretical part: what is a work? Which work? Which version? > How to roll > up citations to different versions? Is a citation to a book > chapter the > "same" as a citation to a conference paper in x domain? -- others are > taking on some of these issues). (Continuing a sort of stream of > consciousness -- would some of the analysis that's gone into FRBR be > helpful?) > > Recent articles I've seen have used (hundreds if not > thousands of) hours > of graduate student time to process the retrieved records, but that > isn't really scalable and it seems unnecessary with all of the > developments in areas like sensor fusion and information fusion from > multiple sensors (in science and engineering). If this work > has already > been done, it surely hasn't been applied in the articles I've read. > > > Christina > > Christina K. Pikas, MLS > R.E. Gibson Library & Information Center > The Johns Hopkins University Applied Physics Laboratory > Voice 240.228.4812 (Washington), 443.778.4812 (Baltimore) > Fax 443.778.5353 > > > > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Loet Leydesdorff > Sent: Wednesday, December 19, 2007 3:28 AM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] Accuracy of Thomson data - > decentralising data > collection and enhancing the scope of scientometrics? > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Chris and colleagues, > > In my opinion, we have made a lot of progress in terms of > data analysis. > The quality of the data that one inputs into the analysis is > a different > issue. > There are pros and cons using different data (SCI, Scopus, Google > Scholar, > etc.) as there are pros and cons using different techniques for the > analysis (e.g., different clustering algorithms, similarity criteria, > etc.). > > Nevertheless, I think that we have a state of the art in terms of > techniques. I make some of them available as computer programs and > lessons for my students at http://www.leydesdorff.net/indicators . If > you have suggestions for improvements, please, let me know. > > With best wishes, > > > Loet > > ________________________________ > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal > 48, 1012 CX Amsterdam. > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; > http://www.leydesdorff.net/ > > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Armbruster, Chris > > Sent: Wednesday, December 19, 2007 8:45 AM > > To: SIGMETRICS at listserv.utk.edu > > Subject: Re: [SIGMETRICS] Accuracy of Thomson data - decentralising > > data collection and enhancing the scope of scientometrics? > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > To the list: > > > > Would you trust the situation to improve if digital repositories > > (institutional, disciplinary and/or national) were to > provide data in > > future? > > One would possibly expect that a decentralised solution > would provide > > more comprehensive (types of publication, languages > > etc.) and more accurate coverage, but one might also worry that the > > corpus will be less well defined.... Hence, what would you think if > > repositories developed a system of author registration (unique > > identifier, institutional affiliation) and provided data? > > > > What is the scope for delivering scientometrics to the digital > > workbench of scientists? > > I have anecdotal evidence that review panels (for major > grants, tenure > > > etc. - often very senior scientists) routinely use software > and search > > > engines to look up the citation data and indices of applicants and > > candidates. If we were not to dismiss this simply as > evaluation mania, > > > but to say that all scientists (senior and junior) now need > tools for > > metric research evaluation to reduce complexity on an > everyday basis > > (and develop strategies for research, teaching, publishing and > > networking) - is scientometrics developed enough to be a reliable > > tool? > > > > Context: for the Max Planck Digital Library I am looking into the > > potential of digital libraries and repositories for the generation, > > collection and evaluation of scientometric data. > > > > Chris Armbruster > > http://ssrn.com/author=434782 > > > > > > > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics on behalf of Loet > > Leydesdorff > > Sent: Tue 18/12/2007 20:50 > > To: SIGMETRICS at listserv.utk.edu > > Subject: Re: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Dear Christina and colleagues: > > > > Incorrect journal abbreviations and non-ISI sources > > > > Citations > > > > http://users.fmg.uva.nl/lleydesdorff/list.htm > > > > Table 4: Non-ISI sources and incorrect journal > abbreviations with more > > > than 10,000 citations in the JCR 2005. > > > > "With its 54,139 citations, the J Phys Chem-US would belong to the > > top-50 journals of the database if it were included. However, this > > journal is included in the ISI-database under the > abbreviations J Phys > > > Chem A and J Phys Chem B with 32,086 and 59,826 citations, > > respectively. For some journals, however, the different > spellings in > > the references may have large implications. Bornman et al. > (2007, at > > p. 105) found 21.5% overestimation of the impact factor of > Angewandte > > Chemie in 2005 because of authors providing references to both the > > German and international editions of this journal (Marx, 2001)." > > > > Source: " > > > > Caveats for the Use of Citation Indicators in Research and Journal > > Evaluations," Journal of the American Society for > Information Science > > and Technology, February 2008 (forthcoming; available as > Early View). > > > > With best wishes, > > > > Loet Leydesdorff > > Amsterdam School of Communications Research (ASCoR) > Kloveniersburgwal > > 48, 1012 CX Amsterdam http://users.fmg.uva.nl/lleydesdorff/list.htm > > > > > > > -----Original Message----- > > > From: ASIS&T Special Interest Group on Metrics > > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Pikas, > > Christina K. > > > Sent: Tuesday, December 18, 2007 3:37 PM > > > To: SIGMETRICS at LISTSERV.UTK.EDU > > > Subject: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data > > > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > > > > Interesting article -- this came across another listserv I'm on. > > > - Calls for an audit of WoS data. > > > - Suggests median measure > > > - Points to errors caused by article type designations. > > > > > > > > > Christina K. Pikas, MLS > > > R.E. Gibson Library & Information Center The Johns Hopkins > > > University Applied Physics Laboratory Voice 240.228.4812 > > > (Washington), 443.778.4812 (Baltimore) Fax 443.778.5353 > > > > > > > > > From loet at LEYDESDORFF.NET Wed Dec 19 14:17:41 2007 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Wed, 19 Dec 2007 20:17:41 +0100 Subject: Accuracy of Thomson data - decentralising data collection and enhancing the scope of scientometrics? In-Reply-To: <934BB0B6D8A02C42BC6099FDE8149CCD02739936@aplesjustice.dom1.jhuapl.edu> Message-ID: Dear Christina and colleagues, I was thinking along similar lines and therefore decided to write a routine which allows me to fuse Scopus data with ISI data. The first (preliminary version) is available at http://www.leydesdorff.net/software/scop2isi/index.htm. The program reads a file in the csv-format exported from Scopus and produces a file ISI.txt which is in the tagged format of the ISI database. This file can be used for input into HistCite or to my programs. (One may have to rename the file.) I tested two of my programs and I have to make some adaptations, but it seems doable. The Scopus files contain also mistakes. For example, addresses are often given twice, and sometimes incomplete. With best wishes, Loet From garfield at CODEX.CIS.UPENN.EDU Thu Dec 20 10:07:44 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 20 Dec 2007 10:07:44 -0500 Subject: Boyack, KW, Using detailed maps of science to identify potential collaborations (Article, English) PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.124-135 Message-ID: Email: kboyack at sandia.gov Author(s): Boyack, KW (Boyack, Kevin W.) Title: Using detailed maps of science to identify potential collaborations Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 124-135, 2007 Language: English Document Type: Article Cited Reference Count: 13 Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: mapping science; paper-level maps; research communities; vitality; collaboration Abstract: Research on the effects of collaboration in scientific research has been increasing in recent years. A variety of studies have been done at the institution and country level, many with an eye toward policy implications. However, the question of how to identify the most fruitful targets for future collaboration in high-performing areas of science has not been addressed. This paper presents a method for identifying targets for future collaboration between two institutions. The utility of the method is shown in two different applications: identifying specific potential collaborations at the author level between two institutions, and generating an index that can be used for strategic planning purposes. Identification of these potential collaborations is based on finding authors that belong to the same small paper-level community, using a paper- level map of science from the combined 2003 SCIE/SSCI/Proceedings databases containing nearly 1 million papers organized into 117,435 communities. Addresses: Sandia Natl Labs, Albuquerque, NM 87185 USA. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: *NAT SCI BOARD 0601 NSB 1 : 2006 *NAT SCI BOARD 0601A NSB 2 : 2006 BORNER K Visualizing knowledge domains ANNU REV INFORM SCI 37 : 179 2003 BOYACK KW Mapping the structure and evolution of chemistry research 11 INT C INT SOC SCI : 2007 BOYACK KW Mapping the backbone of science SCIENTOMETRICS 64 : 351 2005 GLANZEL W Proceedings literature as additional data source for bibliometric analysis SCIENTOMETRICS 68 : 457 2006 GLANZEL W Double effort = Double impact? A critical view at international co- authorship in chemistry SCIENTOMETRICS 50 : 199 2001 HAVEMANN F Collaboration and distances between German immunological institutes - a trend analysis J BIOMEDICAL DISCOVE 1 : 6 2006 KLAVANS R Identifying a better measure of relatedness for mapping science J AM SOC INF SCI TEC 57 : 251 2006 KLAVANS R Quantitative evaluation of large maps of science SCIENTOMETRICS 68 : 475 2006 KLAVANS R Thought leadership: A new indicator for national and institutional comparison UNPUB SCIENTOMETRICS MELIN G Studying research collaboration using co-authorships SCIENTOMETRICS 36 : 363 1996 NEWMAN MEJ The structure of scientific collaboration networks P NATL ACAD SCI USA 98 : 404 2001 From krichel at OPENLIB.ORG Thu Dec 20 10:40:30 2007 From: krichel at OPENLIB.ORG (Thomas Krichel) Date: Thu, 20 Dec 2007 09:40:30 -0600 Subject: accuracy of Thomson data Message-ID: On the ISI accuracy debate, here is an interesting contribution by Mark Doyle on the PAM mailing list. Cheers, Thomas Krichel http://openlib.org/home/krichel RePEc:per:1965-06-05:thomas_krichel skype: thomaskrichel Hi, On Dec 20, 2007, at 8:35 AM, A. Ben Wagner wrote: > Note also the errors are often not Thomson's fault, > but the result of notoriously poor citation checking by journal > authors and > editors. And it seems to be getting worse in the Internet age when > any one > including a 5th grader can put a bibliography out on the web. This simply is not true. Most, if not all, major publishers (and many, many more) now check references against CrossRef and get DOIs. In doing the PROLA archive, we tagged references for material from 1893 to 1995 and there was about a 10% error rate in citations over this time period. Nowadays, the error rate in our citations is well under 1% because of CrossRef. For PRL and other APS journals (and even Nature), we have found error rates (these are undercounts) in ISI's data ranging from about 17% to 25% when comparing Web of Science and JCR data. It is inexcusable really. ISI could be doing MUCH better for WoS and JCR by using XML references and metadata tagged with DOIs from publishers to feed their process, but they have shown little interest in doing this (at least for our material). Scopus, for instance, gets data about our citations from us this way. Best, Mark Mark Doyle Assistant Director, Journal Information Systems The American Physical Society From garfield at CODEX.CIS.UPENN.EDU Thu Dec 20 11:08:47 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 20 Dec 2007 11:08:47 -0500 Subject: Bornmann, L; et al Functional use of frequently and infrequently cited articles in citing publications.PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.149-153 Message-ID: Email: bornmann at gess.ethz.ch Author(s): Bornmann, L (Bornmann, Lutz); Daniel, HD (Daniel, Hans-Dieter) Title: Functional use of frequently and infrequently cited articles in citing publications. A content analysis of citations to articles with low and high citation counts Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 149-153, 2007 Cited Reference Count: 18 Language: English Document Type: Article Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: citation; citation behavior; citation content analysis; citation context analysis; evaluative bibliometrics Abstract: Using publication and citation data from a study on the selection procedure of the Boehringer Ingelheim Fonds (B.I.F.), this study investigated the extent to which frequently and infrequently cited articles were used differently by the scientists that cited them. The data set consisted of 31 articles by B.I.F. grant applicants that had received 451 citations in 270 citing publications. In a comprehensive content analysis each reference to the B.I.F. article in the citing publication was classified according to two categories: 1) the location of the citation within the citing publication (section of the paper in which the citation appears) and 2) meaningful or cursory mentioning of the article in the citing publication. The results showed statistically significant differences between the B.I.F. applicants' articles with low or high citation counts. All in all, the results indicate that an article with high citation counts had greater relevance for the citing author than an article with low citation counts. Addresses: ETH, Zurich, Switzerland. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: *CYT SOFTW CORP STATXACT VERS 7 : 2005 AGRESTI A CATEGORICAL DATA ANA : 2002 AMSTERDAMSKA O CITATIONS - INDICATORS OF SIGNIFICANCE SCIENTOMETRICS 15 : 449 1989 BONZI S CHARACTERISTICS OF A LITERATURE AS PREDICTORS OF RELATEDNESS BETWEEN CITED AND CITING WORKS J AM SOC INFORM SCI 33 : 208 1982 BORNMANN L What do citation counts measure? A review of studies on citing behavior. IN PRESS J DOCUMENTA BORNMANN L Selecting scientific excellence through committee peer review - A citation analysis of publications previously published to approval or rejection of post-doctoral research fellowship applicants SCIENTOMETRICS 68 : 427 2006 CANO V CITATION BEHAVIOR - CLASSIFICATION, UTILITY, AND LOCATION J AM SOC INFORM SCI 40 : 284 1989 CONROY RM Choosing an appropriate real-life measure of effect size: the case of a continuous predictor and binary outcome STATA J 2 : 290 2002 CRAMER H MATH METHODS STAT : 1980 HOOTEN PA FREQUENCY AND FUNCTIONAL USE OF CITED DOCUMENTS IN INFORMATION-SCIENCE J AM SOC INFORM SCI 42 : 397 1991 LATOUR B LAB LIFE SOCIAL CONS : 1979 MARICIC S Citation context versus the frequency counts of citation histories J AM SOC INFORM SCI 49 : 530 1998 MCCAIN KW CITATION CONTEXT ANALYSIS AND AGING PATTERNS OF JOURNAL ARTICLES IN MOLECULAR-GENETICS SCIENTOMETRICS 17 : 127 1989 MOED HF CITATION ANAL RES EV : 2005 MURUGESAN P VARIATION OF NATURE OF CITATION MEASURES WITH JOURNALS AND SCIENTIFIC SPECIALTIES J AM SOC INFORM SCI 29 : 141 1978 PREACHER KJ Use of the extreme groups approach: A critical reexamination and new recommendations PSYCHOL METHODS 10 : 178 2005 VONEYE A ANAL RATER AGREEMENT : 2005 VOOS H Are all citations equal? Or did we op. cit. your idem? J ACAD LIBR 1 : 19 1976 From garfield at CODEX.CIS.UPENN.EDU Thu Dec 20 11:25:09 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 20 Dec 2007 11:25:09 -0500 Subject: Danell, JAB; Danell, R, Spiritualised medicine? A bibliometric study of complementary and alternative medicine (Article, English) PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.154-161 Message-ID: Email: jenny-ann.brodin at soc.umu.se Author(s): Danell, JAB (Danell, Jenny-Ann Brodin); Danell, R (Danell, Rickard) Title: Spiritualised medicine? A bibliometric study of complementary and alternative medicine Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 154-161, 2007 Language: English Document Type: Article Cited Reference Count: 18 Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: complementary and alternative medicine; bibliometrics; publication behaviour; scientific journals KeyWords Plus: UNITED-STATES; PREVALENCE Abstract: Recent research has shown that complementary and alternative therapies (CAM) are increasingly popular in the western world. As a consequence, CAM is becoming more integrated into conventional medical practices. However, this could be seen as a paradox since most CAM relies on spiritual and religious assumptions, sometimes at odds with western scientific traditions. The purpose of this paper is to study the development of research concerned with CAM. To define and retrieve publications on complementary and alternative therapies we use MEDLINE Medical Subject Heading (MeSH). In the retrieval process we use all entries under category complementary therapies, except traditional medicine since this does not denote a specific therapeutic tradition. In the article we analyse general patterns concerning the development of research activity in different CAM traditions. In the article we conclude that the publication activity in CAM increases rapidly, and that the changing growth rate of CAM articles is not due to a general expansion of Medline. We also find that the character of CAM articles has changed, especially at the beginning of the 1990(th), towards more clinical oriented research. Addresses: Umea Univ, Dept Sociol, Umea, SE-90187 Sweden. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: AUSTIN JA Why patients use alternative medicine - Results of a National Study JAMA-J AM MED ASSOC 279 : 1548 1998 EISENBERG DM Trends in alternative medicine use in the United States, 1990-1997 - Results of a follow-up national survey JAMA-J AM MED ASSOC 280 : 1569 1998 EISENBERG DM UNCONVENTIONAL MEDICINE IN THE UNITED-STATES - PREVALENCE, COSTS, AND PATTERNS OF USE NEW ENGL J MED 328 : 246 1993 EKLOF M PERSPECKTIV KOMPLEME : 2004 FISHER P MEDICINE IN EUROPE .8. COMPLEMENTARY MEDICINE IN EUROPE BRIT MED J 309 : 107 1994 GIERYN TF CULTURAL BOUNDARIES : 1999 HARRIS P The prevalence of complementary and alternative medicine use among the general population: a systematic review of the literature COMPLEMENT THER MED 8 : 88 2000 HESS D SCI NEW AGE PARANORM : 1993 HESS DJ SCI TECHNOLOGY MULTI : 1995 JUTTE R HIST ASPECTS UNCONVE : 2001 KELNER M The role of the state in the social inclusion of complementary and alternative medical occupations COMPLEMENT THER MED 12 : 79 2004 MACLENNAN AH Prevalence and cost of alternative medicine in Australia LANCET 347 : 569 1996 MARTIN SC THE ONLY TRULY SCIENTIFIC METHOD OF HEALING - CHIROPRACTIC AND AMERICAN SCIENCE, 1895-1990 ISIS 85 : 207 1994 MAUSKOPF S ELUSIVE SCI ORIGINS : 1980 MILLAR WJ Use of alternative health care practitioners by Canadians CAN J PUBLIC HEALTH 88 : 154 1997 SALMON JW ALTERNATIVE MED POPU : 1984 STAR SL INSTITUTIONAL ECOLOGY, TRANSLATIONS AND BOUNDARY OBJECTS - AMATEURS AND PROFESSIONALS IN BERKELEYS-MUSEUM-OF-VERTEBRATE-ZOOLOGY, 1907-39 SOC STUD SCI 19 : 387 1989 WORSLEY P NON-WESTERN MEDICAL SYSTEMS ANNU REV ANTHROPOL 11 : 315 1982 From garfield at CODEX.CIS.UPENN.EDU Thu Dec 20 11:25:43 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 20 Dec 2007 11:25:43 -0500 Subject: Burrell, QL, Hirsch's h-index and Egghe's g-index (Article, English) PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.162-169 Message-ID: Email: q.burrell at ibs.ac.im Author(s): Burrell, QL (Burrell, Quentin L.) Title: Hirsch's h-index and Egghe's g-index Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 162-169, 2007 Language: English Document Type: Article Cited Reference Count: 18 Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: h-index; g-index; stochastic model; publication/citation process KeyWords Plus: MODEL Abstract: In a recent issue of the ISSI Newsletter, Egghe (2006a) proposed the g-index, claimed to be an improvement on the original h-index proposed by Hirsch (2005). The aim of this paper is to investigate the inter- relationships between these two measures and also their time dependence using the stochastic publication/citation model proposed by Burrell (1992, 2007a). We find that an author's g-index is directly proportional to career length and hence to the h-index. We also make some tentative suggestions regarding the relative merits of these proposed measures. Addresses: Isle Man Int Business Sch, Isle Of Man, IM2 1QB England. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: BANKS MG An extension of the Hirsch index: Indexing scientific topics and compounds SCIENTOMETRICS 69 : 161 2006 BURRELL QL 9 INT SCI TECHN IND : 26 2006 BURRELL QL On the h-index, the size of the Hirsch core and Jin's A- index IN PRESS J INFORMETR : 2007 BURRELL QL Hirsch index or Hirsch rate? Some thoughts arising from Liang's data IN PRESS SCIENTOMETR 73 : 2007 BURRELL QL A SIMPLE-MODEL FOR LINKED INFORMETRIC PROCESSES INFORMATION PROCESSI 28 : 637 1992 BURRELL QL Hirsch's h-index: A schoastic model J INFORM 1 : 16 2007 EGGHE L An improvement of the h-index: the g-index ISSI NEWSLETTER 2 : 8 2006 EGGHE L Dynamic h-index: The Hirsch index in function of time J AM SOC INF SCI TEC 58 : 452 2007 EGGHE L An informetric model for the Hirsch-index SCIENTOMETRICS 69 : 121 2006 EGGHE L Theory and practise of the g-index SCIENTOMETRICS 69 : 131 2006 GLANZEL W On the opportunities and limitations of the H-index SCI FOCUS 1 : 10 2006 GLANZEL W On the h-index - A mathematical approach to a new measure of publication activity and citation impact SCIENTOMETRICS 67 : 315 2006 HIRSCH JE An index to quantify an individual's scientific research output P NATL ACAD SCI USA 102 : 16569 2005 JIN BH H-index: an evaluation indicator proposed by scientist SCI FOCUS 1 : 8 2006 KOSMULSKI M A new Hirsch-type index saves time and works equally well as the original h-index ISSI NEWSLETTER 2 : 4 2006 LIANG LM h-index sequence and h-index matrix: Constructions and applications SCIENTOMETRICS 69 : 153 2006 ROUSSEAU R A case study: evolution of JASIS' Hirsch index SCI FOCUS 1 : 16 2006 ROUSSEAU R New developments related to the Hirsch index SCI FOCUS 1 : 23 2006 From garfield at CODEX.CIS.UPENN.EDU Thu Dec 20 11:26:49 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 20 Dec 2007 11:26:49 -0500 Subject: Butler, L; Henadeera, K, Is there a role for novel citation measures for the social sciences and humanities in a national research assessment exercise?PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL OF THE ISSI, VOLS I AND II. 2007. p.170-178 Message-ID: Email: linda.butler at anu.edu.au Author(s): Butler, L (Butler, Linda); Henadeera, K (Henadeera, Kumara) Title: Is there a role for novel citation measures for the social sciences and humanities in a national research assessment exercise? Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 170-178, 2007 Language: English Document Type: Article Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: citations to books; social sciences; humanities; research assessment Abstract: Australia is about to move to a new system of distributing government block grants for research among universities, with the introduction of a process similar to Britain's Research Assessment Exercise. In the Australian model, peer judgements will be informed by quantitative performance measures, including citation analysis. However, standard bibliometric measures are widely acknowledged to be inappropriate for most disciplines in the social sciences and humanities. In an attempt to identify a more suitable alternative, two recently completed pilot studies have trialled new approaches to bibliometrics, testing their applicability for the assessment of research in political science and history. The new methodology, which extended citation data to included citations to books, book chapters and journals outside the citation databases, was endorsed at discipline workshops by senior academics from the two disciplines. They found that this new approach to bibliometrics could be a valuable tool for both disciplines, with some caveats attached. The chief reservation related to the role of quantitative measures-there was consensus that they should be used to inform peer review, rather than drive the assessment process. Addresses: Australian Natl Univ, Res Evaluat & Policy Project, Canberra, ACT 0200 Australia. Cited Reference Count: 9 Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: *CHASS MEAS QUAL IMP PUBL F : 2005 *DEST RES QUAL FRAM ASS QU : 2006 BOURKE P A Bibliometric Analysis of Biological Sciences Research in Australia 6307HERC99A DETYA : 1999 BUTLER L Extending citation analysis to non-source items SCIENTOMETRICS 66 : 327 2006 CRONIN B Comparative citation rankings of authors in monographic and journal literature: A study of sociology J DOC 53 : 263 1997 MOED HF CITATION ANAL RES EV : 2005 VANLEEUWEN TN The application of bibliometric analyses in the evaluation of social science research. Who benefits from it and why it's still feasible SCIENTOMETRICS 66 : 133 2006 VANRAAN AFJ Fatal attraction: Conceptual and methodological problems in the ranking of universities by bibliometric methods SCIENTOMETRICS 62 : 133 2005 VANRAAN AFJ WEB KNOWLEDGE FESTSC : 301 2000 From garfield at CODEX.CIS.UPENN.EDU Thu Dec 20 11:27:43 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Thu, 20 Dec 2007 11:27:43 -0500 Subject: Medina, CC; Noyons, ECM, Combining mapping and citation network analysis for a better understanding of the scientific development:, PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.179-183 Message-ID: Email: clara at cwts.nl Author(s): Medina, CC (Medina, Clara Calero); Noyons, ECM (Noyons, Ed C. M.) Title: Combining mapping and citation network analysis for a better understanding of the scientific development: The case of the absorptive capacity field Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 179-183, 2007 Cited Reference Count: 13 Language: English Document Type: Article Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: citation network analysis; bibliometric mapping; main research stream; emerging terms Abstract: The general aim of this paper is to show the preliminary results of a study where we are combining bibliometric map and citation network analysis to better understand the process of creation and transfer of knowledge through scientific publications. The novelty of this approach is the combination of both methods. The bibliometric co-word map will provide insight into the content of the publication. This will be used to the interpretation of groups of citations that may constitute the backbones of a research tradition or the future of the research. Addresses: Leiden Univ, CWTS, Leiden, NL-2300 RB Netherlands. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: ASIMOV I GENETIC CODE : 1963 BATAGELJ V PAJEK PROGRAM PACKAG : 2006 BATAGELJ V U LJUBLJANA I MATH 41 : 1 2003 COHEN WM ABSORPTIVE-CAPACITY - A NEW PERSPECTIVE ON LEARNING AND INNOVATION ADMIN SCI QUART 35 : 128 1990 DENOOY W EXPLORATORY SOCIAL N : 2005 FOSS NJ Absorbing the Concept of Absorptive Capacity: How to Realize its Potential in the Organizational Field IN PRESS ORG SCI GARFIELD E USE CITATION DATA WR : 1964 HUMMON NP COMPUTATIONAL METHODS FOR SOCIAL NETWORK ANALYSIS SOC NETWORKS 12 : 273 1990 HUMMON NP CONNECTIVITY IN A CITATION NETWORK - THE DEVELOPMENT OF DNA THEORY SOC NETWORKS 11 : 39 1989 LANE PJ The reification of absorptive capacity: A critical review and rejuvenation of the construct ACAD MANAGE REV 31 : 833 2006 MOED HF CITATION ANAL RES EV : 2005 NOYONS ECM Bliometric Mapping as a science policy and research management tool THESIS U LEIDEN : 1999 SMALL HG CITED DOCUMENTS AS CONCEPT SYMBOLS SOC STUD SCI 8 : 327 1978 From jean.claude.guedon at UMONTREAL.CA Thu Dec 20 12:00:44 2007 From: jean.claude.guedon at UMONTREAL.CA (Jean-Claude =?ISO-8859-1?Q?Gu=E9don?=) Date: Thu, 20 Dec 2007 12:00:44 -0500 Subject: accuracy of Thomson data In-Reply-To: <20071220154030.GG4446@openlib.org> Message-ID: All this discussion leads to an interesting question: Routinely - in a recent (and very useful) paper ("Caveats for the Use of Citation Indicators...", Loet Leydesdorff uses the expression "codification process" - impact factors are given with three decimals. When I used to study chemistry, eons ago, my teachers used to tell us that measurements provided as is with no estimate measurement errors were simply meaningless. Do citation measurements escape this fundamental rule? I think not, especially when I see three or four significant figures being produced without anyone batting a single eyelash... When I see journal editors battling to get past their nearest competitor at the level of the third or fourth significant figures when we all know that these are the artifacts of calculations, not reflections of reality, I cannot help smile; or sigh, for such a treatment of figures intensifies the role of the impact factor as an arbiter of journal competition, which is very good for Thompson Scientific's business, but not much else. Perhaps some people at Scopus, etc. could produce a good statistical study of this phenomenon... :-) Imagine documenting the fact that impact factors are known ?30% ... Has anyone ever tried to put a general error figure on impact (and impact factors) measurements? Best, Jean-Claude Gu?don Le jeudi 20 d?cembre 2007 ? 09:40 -0600, Thomas Krichel a ?crit : > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > On the ISI accuracy debate, here is an interesting > contribution by Mark Doyle on the PAM mailing list. > > Cheers, > > Thomas Krichel http://openlib.org/home/krichel > RePEc:per:1965-06-05:thomas_krichel > skype: thomaskrichel > > > > > > Hi, > > On Dec 20, 2007, at 8:35 AM, A. Ben Wagner wrote: > > > Note also the errors are often not Thomson's fault, > > but the result of notoriously poor citation checking by journal > > authors and > > editors. And it seems to be getting worse in the Internet age when > > any one > > including a 5th grader can put a bibliography out on the web. > > This simply is not true. Most, if not all, major publishers (and > many, many more) now check references against CrossRef and get DOIs. > In doing the PROLA archive, we tagged references for material from > 1893 to 1995 and there was about a 10% error rate in citations over > this time period. Nowadays, the error rate in our citations is well > under 1% because of CrossRef. For PRL and other APS journals (and > even Nature), we have found error rates (these are undercounts) in > ISI's data ranging from about 17% to 25% when comparing Web of > Science and JCR data. It is inexcusable really. ISI could be doing > MUCH better for WoS and JCR by using XML references and metadata > tagged with DOIs from publishers to feed their process, but they have > shown little interest in doing this (at least for our material). > Scopus, for instance, gets data about our citations from us this way. > > Best, > Mark > > Mark Doyle > Assistant Director, Journal Information Systems > The American Physical Society -------------- next part -------------- An HTML attachment was scrubbed... URL: From notsjb at LSU.EDU Thu Dec 20 16:36:47 2007 From: notsjb at LSU.EDU (=?windows-1252?Q?Stephen_J._Bensman?=) Date: Thu, 20 Dec 2007 16:36:47 -0500 Subject: accuracy of Thomson data Message-ID: I try to do some of this in the paper posted on Dr. Garfield?s Web site at: http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf You might want to look at the second half of the paper, where I discuss the Impact Factor in terms of Poisson lambdas, sampling variance, random error, etc. The amazing thing to me, at least, is that despite all the random error and sampling variance, there is a remarkable stability of probability across time with Spearman rhos of 0.9 and above with high respectable correlations with Total Cites, library use, and expert ratings. Most impact factors move up and down within extremely narrow limits across time. I found a similar phenomenon in a paper just accepted by JASIST called ?Distributional Differences of the Impact Factor in the Sciences vs. the Social Sciences: An Analysis of the Probabilistic Structure of the 2005 Journal Citation Reports.? I no longer own the copyright and so cannot post it, but I suppose that I can let you read it on a private basis, if you?re willing to suffer the pain of reading it. There is much more to the Impact Factor than meets the eye, and it is an extremely good measure for many purposes, if of extremely doubtful use for ranking purposes in the vast bulk of the cases. Stephen J. Bensman, Ph.D. LSU Libraries Louisiana State University Baton Rouge, LA 70803 USA notsjb at lsu.edu From loet at LEYDESDORFF.NET Fri Dec 21 02:04:59 2007 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Fri, 21 Dec 2007 08:04:59 +0100 Subject: accuracy of Thomson data In-Reply-To: Message-ID: Dear Stephen and colleagues, These (Spearman) correlations teach us, in my opinion, that the measures covary across disciplines at the aggregate level. Since impact factors are higher in the biomedical sciences, library usages and expert ratings would be expected to be higher in these sciences as well? I would expect the c/p ratio, the impact factor, and the immediacy factor to correlate highly as one group, but total publication, total citations, library usage, expert ratings, etc., as a second group (size related). As you know, my preference goes in the direction of mapping local citation impact environments. These can be visualized using, for example, the files at http://www.leydesdorff.net/jcr06 . (See: Visualization of the Citation Impact Environments of Scientific Journals: An online mapping exercise, Journal of the American Society for Information Science and Technology 58(1), 25-38, 2007.) The normalization in terms of the vector space (cosine) takes care of the size effects in the relations (links), and size can be considered as an attribute of the nodes. I have no better operationalization at the moment, but I am open for suggestions. Best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J. Bensman > Sent: Thursday, December 20, 2007 10:37 PM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > I try to do some of this in the paper posted on Dr. > Garfield's Web site at: > > > > http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf > > > > You might want to look at the second half of the paper, where > I discuss > the Impact Factor in terms of Poisson lambdas, sampling > variance, random > error, etc. The amazing thing to me, at least, is that > despite all the > random error and sampling variance, there is a remarkable > stability of > probability across time with Spearman rhos of 0.9 and above with high > respectable correlations with Total Cites, library use, and expert > ratings. Most impact factors move up and down within > extremely narrow > limits across time. I found a similar phenomenon in a paper > just accepted > by JASIST called "Distributional Differences of the Impact > Factor in the > Sciences vs. the Social Sciences: An Analysis of the Probabilistic > Structure of the 2005 Journal Citation Reports." I no > longer own the > copyright and so cannot post it, but I suppose that I can let > you read it > on a private basis, if you're willing to suffer the pain of > reading it. > There is much more to the Impact Factor than meets the eye, > and it is an > extremely good measure for many purposes, if of extremely > doubtful use for > ranking purposes in the vast bulk of the cases. > > > > Stephen J. Bensman, Ph.D. > LSU Libraries > Louisiana State University > Baton Rouge, LA 70803 > USA > notsjb at lsu.edu > From notsjb at LSU.EDU Fri Dec 21 10:00:40 2007 From: notsjb at LSU.EDU (Stephen J Bensman) Date: Fri, 21 Dec 2007 09:00:40 -0600 Subject: accuracy of Thomson data In-Reply-To: A<002b01c8439f$cd990dc0$6702a8c0@loet> Message-ID: Loet, In re to your first paragraph, if you read the paper that is posted on Dr. Garfield's Web site, you will see that the probability was very stable across time both in terms of the Impact Factor and Total Cites not at the aggregate level but within one discipline--chemistry. This stability is essentially a reflection of the stability of the underlying social stratification system of chemistry. The only consistent change in probability was the continuing increase in dominance of the journals at the top of both measures, indicating the success-breeds-success mechanism of the Matthew Effect--technically known as "contagion" in statistics. This is the basic reason for the stability of both the social stratification system and the journal system based upon it. In re your method, I must admit that generally it shoots right by me. When I was young, a mathematics teacher once told me that minds can be divided into two types--those that think linearly and are good in algebra, and those that think spatially and are good in geometry. The teacher said that people very good in algebra often have hard time in geometry. I was extremely good in algebra but had a hard time in geometry due to difficulty in grasping spatial relationships. It seems that computer programmers have to be able to think spatially as well, and I have a hard time understanding this. However, your most important recent discovery--in my opinion--was in your recent "Caveats" paper, where you prove that JCRs do not aggregate Total Cites across title changes, splits, etc. In other words, much of the backfile is left out of the count. From my historical perspective, this is a most serious flaw. You also have to understand that I am a catalog librarian and define serial bibliographic entities in terms of volume count--if the volume sequence is consistent, it is still the same journal despite the title change. I investigated the problem briefly and found that I could not aggregate more than three years. I would like to know how you did that. For me it means that for Total Cites to be good, Total Cites across 3 years have to be highly correlated with Total Cites across the entire backfile. An initial view was that such a short backfile was a sufficient sample. If this is so, then the Total Cites measure is good. Stephen J. Bensman LSU Libraries Louisiana State University Baton Rouge, LA 70803 USA notsjb at lsu.edu -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff Sent: Friday, December 21, 2007 1:05 AM To: SIGMETRICS at LISTSERV.UTK.EDU Subject: Re: [SIGMETRICS] accuracy of Thomson data Dear Stephen and colleagues, These (Spearman) correlations teach us, in my opinion, that the measures covary across disciplines at the aggregate level. Since impact factors are higher in the biomedical sciences, library usages and expert ratings would be expected to be higher in these sciences as well? I would expect the c/p ratio, the impact factor, and the immediacy factor to correlate highly as one group, but total publication, total citations, library usage, expert ratings, etc., as a second group (size related). As you know, my preference goes in the direction of mapping local citation impact environments. These can be visualized using, for example, the files at http://www.leydesdorff.net/jcr06 . (See: Visualization of the Citation Impact Environments of Scientific Journals: An online mapping exercise, Journal of the American Society for Information Science and Technology 58(1), 25-38, 2007.) The normalization in terms of the vector space (cosine) takes care of the size effects in the relations (links), and size can be considered as an attribute of the nodes. I have no better operationalization at the moment, but I am open for suggestions. Best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J. Bensman > Sent: Thursday, December 20, 2007 10:37 PM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > I try to do some of this in the paper posted on Dr. > Garfield's Web site at: > > > > http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf > > > > You might want to look at the second half of the paper, where > I discuss > the Impact Factor in terms of Poisson lambdas, sampling > variance, random > error, etc. The amazing thing to me, at least, is that > despite all the > random error and sampling variance, there is a remarkable > stability of > probability across time with Spearman rhos of 0.9 and above with high > respectable correlations with Total Cites, library use, and expert > ratings. Most impact factors move up and down within > extremely narrow > limits across time. I found a similar phenomenon in a paper > just accepted > by JASIST called "Distributional Differences of the Impact > Factor in the > Sciences vs. the Social Sciences: An Analysis of the Probabilistic > Structure of the 2005 Journal Citation Reports." I no > longer own the > copyright and so cannot post it, but I suppose that I can let > you read it > on a private basis, if you're willing to suffer the pain of > reading it. > There is much more to the Impact Factor than meets the eye, > and it is an > extremely good measure for many purposes, if of extremely > doubtful use for > ranking purposes in the vast bulk of the cases. > > > > Stephen J. Bensman, Ph.D. > LSU Libraries > Louisiana State University > Baton Rouge, LA 70803 > USA > notsjb at lsu.edu > From garfield at CODEX.CIS.UPENN.EDU Fri Dec 21 10:10:45 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Fri, 21 Dec 2007 10:10:45 -0500 Subject: Campiteli, MG; et al, A research productivity index to account for different scientific disciplines PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.184-188 Message-ID: Email: mocampiteli at gmail.com Author(s): Campiteli, MG (Campiteli, Monica G.); Batista, PD (Batista, Pablo D.); Martinez, AS (Martinez, Alexandre S.) Title: A research productivity index to account for different scientific disciplines Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 184-188, 2007 Cited Reference Count: 6 Language: English Document Type: Article Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: scientometrics; h-index; co-authorship Abstract: number h of papers with at least h citations has been proposed to evaluate individual's scientific research production. This index is robust in several ways but yet strongly dependent on the research field. We propose a complementary index h(1) = h(2)/N-a((T)), with N-a((T)) being the total number of authors in the considered h papers. A researcher with index h(1) has h(1) papers with at least h(1) citation if he/she had published alone. We have obtained the rank plots of h and h(1) for seven German scientific communities. Contrasting to the h-index curve, the h(1) index present a perfect data collapse into a unique curve allowing comparison among different research areas. Addresses: Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Ribeirao Preto, SP BR-14040901 Brazil. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: BATISTA PD Is it possible to compare researchers with different scientific interests? SCIENTOMETRICS 68 : 179 2006 GLANZEL W Does co-authorship inflate the share of self-citations? SCIENTOMETRICS 61 : 395 2004 HIRSCH JE An index to quantify an individual's scientific research output P NATL ACAD SCI USA 102 : 16569 2005 LAHERRERE J Stretched exponential distributions in nature and economy: "fat tails" with characteristic scales EUR PHYS J B 2 : 525 1998 LEHMANN S Citation networks in high energy physics PHYS REV E 2 6802 : 6113 2003 POPOV SB A parameter to quantify dynamics of a researcher's scientific activity SCIENCE 309 : 4 2005 From garfield at CODEX.CIS.UPENN.EDU Fri Dec 21 10:11:31 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Fri, 21 Dec 2007 10:11:31 -0500 Subject: Chen, CM; Song, IY; Zhu, WZ, Trends in conceptual modeling: Citation analysis of the ER conference papers (1979-2005) (Article, English) PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.189-200 Message-ID: Email: chaomei.chen at cis.drexel.edu Author(s): Chen, CM (Chen, Chaomei); Song, IY (Song, Il-Yeol); Zhu, WZ (Zhu, Weizhong) Title: Trends in conceptual modeling: Citation analysis of the ER conference papers (1979-2005) Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 189-200, 2007 Cited Reference Count: 10 Language: English Document Type: Article Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: progressive knowledge domain visualization; CiteSpace Abstract: We analyze thematic trends and challenging issues in conceptual modeling based on the metadata of 943 research papers published in a series of conferences on conceptual modeling (known as the ER conferences) between 1979 and 2005. We specifically address 1) all-time prominent challenges in conceptual modeling, 2) current challenges and emerging trends, and 3) the structure and dynamics of the conceptual modeling community. We utilize CiteSpace, a progressive domain visualization tool, to identify and visualize the movement of research fronts and intellectual bases, persistent clusters of papers, critical paths connecting these clusters, and the evolution of co-authorship networks as well as citation networks. The work contributes an in-depth analysis of a major forum of conceptual modeling and a practical method that one can use as frequently as needed to keep abreast of the state of the art of conceptual modelling. Addresses: Drexel Univ, Coll Informat Sci & Technol, Philadelphia, PA 19104 USA. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: CHEN CM CiteSpace II: Detecting and visualizing emerging trends and transient patterns in scientific literature J AM SOC INF SCI TEC 57 : 359 2006 CHEN CM Searching for intellectual turning points: Progressive knowledge domain visualization PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 101 : 5303 2004 CHEN PPS The Entity-Relationship Model: Toward a Unified View of Data ACM T DATABASE SYST 1 : 9 1976 EMBLEY DW Synergistic Database Design with an Extended Entity Relationship Model P 8 INT C ENT REL AP : 1989 FREEMAN LC Centrality in social networks: Conceptual Clarification SOC NETWORKS 1 : 215 1979 GREGERSEN H Temporal entity-relationship models - A survey IEEE T KNOWL DATA EN 11 : 464 1999 SCHVANEVELDT RW PATHFINDER ASS NETWO : 1990 TEOREY TJ A Logical Design Methodology for Relational Databases Using the Ex-tended Entity-Relationship Model ACM COMPUT SURV 18 : 197 1986 THALHEIM B ENTITY RELATIONSHIP : 2000 TRYFONA N P ACM 2 INT WORKSH D : 1999 From garfield at CODEX.CIS.UPENN.EDU Fri Dec 21 10:12:22 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Fri, 21 Dec 2007 10:12:22 -0500 Subject: Chen, L; et al, A comparative study between international and domestic interdisciplinary journals and specialty journals: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.201-206 Message-ID: Email: Chenli313 at vip.sina.com Author(s): Chen, L (Chen Li); Pan, YT (Pan Yuntao); Ma, Z (Ma Zheng); Su, C (Su Cheng); Wu, YS (Wu Yishan) Title: A comparative study between international and domestic interdisciplinary journals and specialty journals: A trial analysis of medical journals, philosophy journals and journals in philosophy of medicines Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 201-206, 2007 Language: English Document Type: Article Cited Reference Count: 1 Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: interdisciplinary science; comparative study; journal; visualization; citation network; philosophy of medicine Abstract: Through the analysis of 17 international and domestic journals, this paper is to find the development trend of philosophy of medicine by using scientometric methods and visualization tool. The 17 journals include medical journals, philosophy journals, as well as journals bridging medicine and philosophy. The analysis involves such indicators as the Citing Half-Life and author affiliation. From the citation network maps derived from citation matrix, one can observe the development trend in philosophy of medicine, and the changing role played by philosophy or medicine in the development of an interdisciplinary field, namely philosophy of medicine. Addresses: Beijing Jiaotong Univ, Inst Sci & Tech Informat China, Beijing, Peoples R China. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: CHEN L A Comparative Study Between Interdisciplinary Journals and Specialty Journals THESIS I SCI TECHNIC : 2006 From garfield at CODEX.CIS.UPENN.EDU Fri Dec 21 10:12:54 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Fri, 21 Dec 2007 10:12:54 -0500 Subject: Chu, H; Krichel, T, Downloads vs. citations in economics: Relationships, contributing factors and beyond PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.207-215 Message-ID: Email: hchu at liu.edu Author(s): Chu, H (Chu, Heting); Krichel, T (Krichel, Thomas) Title: Downloads vs. citations in economics: Relationships, contributing factors and beyond Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 207-215, 2007 Language: English Document Type: Article Cited Reference Count: 16 Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: digital libraries; downloads; citations; usage analysis; Google Scholar KeyWords Plus: WEB-OF-SCIENCE; GOOGLE-SCHOLAR; IMPACT Abstract: Citations to 200 top downloaded papers at RePEc, a digital library in economics, were obtained from SSCI and Google Scholar respectively to address questions relating to downloads and their corresponding citations. This study finds that top downloaded documents are used in various degrees when citation is regarded as an indicator of usage. The results also show that a single downloaded paper selected for this study on average receives twice as many citations from Google Scholar as that from SSCI although the latter has been established much earlier in time. According to the coefficients computed, downloads appear having a moderate relationship with citations. However, other measures such as the download-citation ratio indicate a stronger connection between the two. While an author's reputation positively affects both download and citation frequencies, other factors (e.g., targeted readers and subject content) seem in play differently for the documents that are repeatedly downloaded or cited. The study suggests that an infrastructure which encourages downloading at digital libraries could lead to higher usage of their resources. Addresses: Long Isl Univ, Palmer Sch Lib & Informat Sci, Greenvale, NY 11548 USA. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: BAUER K An examination of citation counts in a new scholarly communication communication environment D LIB MAGAZINE 11 : 2005 BOLLEN J Toward alternative metrics of journal impact: A comparison of download and citation data INFORM PROCESS MANAG 41 : 1419 2005 BROWN C The e-volution of preprints in the scholarly communication of physicists and astronomers JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 52 : 187 2001 CHARBONNEAU L Google Scholar service matches Thomson ISI citation index I AFFAIRS : 2006 COATS AJS Top of the charts: Download versus citations in the International Journal of Cardiology INT J CARDIOL 105 : 123 2005 CRUZ BJM Cataloging economics preprints: An introduction to the RePEc project J INTERNET CATALOGRI 3 : 227 2000 DARMONI SJ Reading factor as credible alternative to impact factor TECHNOLOGY HLTH CARE 8 : 174 2000 DAVIS PM Does the arXiv lead to higher citations and reduced publisher downloads for mathematics articles? DOES ARXIV LEAD HIGH : 2006 FOSMIRE M Scan it and they will come ... but will they cite it? SCI TECH LIBR 25 : 55 2004 GARFIELD E Do Nobel Prize winners write citation classics? CURRENT CONTENTS : 3 1986 GARFIELD E Contemporary classics in the life sciences: An autographical feast CURRENT CONTENTS : 3 1985 JACSO P As we may search - Comparison of major features of the Web of Science, Scopus, and Google Scholar citation-based and citation-enhanced databases CURR SCI INDIA 89 : 1537 2005 KAPLAN NR Determining the publication impact of a digital library J AM SOC INFORM SCI 51 : 324 2000 MOED HF Statistical relationships between downloads and citations at the level of individual documents within a single journal J AM SOC INF SCI TEC 56 : 1088 2005 NORUZI A Google Scholar: The new generation of citation indexes LIBRI 55 : 170 2005 ROTH DL The emergence of competitors to the Science Citation Index and the Web of Science CURR SCI INDIA 89 : 1531 2005 From garfield at CODEX.CIS.UPENN.EDU Fri Dec 21 10:13:34 2007 From: garfield at CODEX.CIS.UPENN.EDU (=?windows-1252?Q?Eugene_Garfield?=) Date: Fri, 21 Dec 2007 10:13:34 -0500 Subject: Coccia, M, Does bureaucracy affect research performance of public research organizations? (Article, English) PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE ISSI, VOLS I AND II. 2007. p.216-225 Message-ID: Email: m.coccia at ceris.cnr.it Author(s): Coccia, M (Coccia, Mario) Title: Does bureaucracy affect research performance of public research organizations? Editor(s): TorresSalinas, D; Moed, HF Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 216-225, 2007 Language: English Document Type: Article Cited Reference Count: 32 Conference Title: 11th International Conference of the International- Society-for-Scientrometrics-and-Informetrics Conference Date: JUN 25-27, 2007 Conference Location: Madrid, SPAIN Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ Carlos III Madrid Author Keywords: bureaucracy; efficiency; research laboratory; research performance; organization rules Abstract: The purpose of this paper is to analyse the relationship between bureaucracy and research performance within Public Research Bodies. The research methodology is applied on a sample of 100 interviewed belonging to 11 institutes of National Research Council of Italy. The main finding is that within Italian Public Research Council there is organization bureaucracy that reduces performance and efficiency of institutes. In fact, institutes have two organizational behaviours: high bureaucracy-low performance and low bureaucracy-high performance. Addresses: CERIS CNR, Inst Econ Res Firm & Growth, Natl Res Council, Turin, I-10024 Italy. Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN, B-3000, BELGIUM Cited References: RISULATI RICERCA : 2003 *ISTAT ANN STAT : 1991 AGHION P ENDOGENOUS GROWTH TH : 1998 BAILEY KD METHODS SOCIAL RES : 1978 BOZEMAN B RED TAPE AND TASK DELAYS IN PUBLIC AND PRIVATE ORGANIZATIONS ADMIN SOC 24 : 290 1992 BOZEMAN B Organizational rules and the "bureaucratic personality" AMERICAN JOURNAL OF POLITICAL SCIENCE 42 : 163 1998 BOZEMAN B The Publicness Puzzle' in Organization Theory: A test of Alternative Explanations of Differences between Public and Private Organizations J PUBL ADM RES THEOR 4 : 197 1994 CARLI R LINTERVISTA : 1972 COCCIA M ANAL BURCORAZIA NEGL : 2006 COCCIA M New models for measuring the R&D performance and identifying the productivity of public research institutes R&D MANAGE 34 : 267 2004 COCCIA M Scientometric model for the assessment of the scientific research performance within the public institutes SCIENTOMETRICS 65 : 297 2005 COCCIA M Technology transfer analysis in the Italian National Research Council TECHNOVATION 22 : 291 2002 CONVERSE JM SURVEY QUESTION HAND : 1986 CROW M LIMITED DESIGN R D L : 1998 CROW M BUREAUCRATIZATION IN THE LABORATORY RES TECHNOL MANAGE 32 : 30 1989 CROZIER M BUREACUCRATIC PHENOM : 1964 ETZKOWITZ H Research groups as 'quasi-firms': the invention of the entrepreneurial university RES POLICY 32 : 109 2003 GIRONE G LEZIONI STATISICA : 1988 GOMITZKA A REV SCI LEARNING POL 36 : 25 1998 GORE A COMMON SENSE GOVT : 1995 GORE A RED TAPE RESULTS CRA : 1993 GREEN J Is Bureaucracy Dead? Don't Be So Sure CHARTERED SECRETARY : 18 1997 GUMPORT PJ A case of bureaucratic accretion - Context and consequences JOURNAL OF HIGHER EDUCATION 66 : 493 1995 HECKMAN J Assessing the performance of performance standards in public bureaucracies AMERICAN ECONOMIC REVIEW 87 : 389 1997 HERBST M CTR SCI TECHNOLOGY S 4 : 2004 LANE JE I REFORM PUBLIC POLI : 1990 MARVULLI R QUESTIONARIO : 1985 MEIER KJ Bureaucracy and organizational performance: Causality arguments about public schools AMERICAN JOURNAL OF POLITICAL SCIENCE 44 : 590 2000 MERTON RK TEORIA STRUTTURA SOC : 1970 RATTAZZI MA QUESTIONARIO : 1990 From loet at LEYDESDORFF.NET Fri Dec 21 11:31:00 2007 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Fri, 21 Dec 2007 17:31:00 +0100 Subject: accuracy of Thomson data In-Reply-To: <4928689828488E458AECE7AFDCB52CFE22889D@email003.lsu.edu> Message-ID: Dear Stephen, As you know, I was interested in the so-called "externally-cited impact factor" of a journal which is not included in the set and then I realized that one can search on non-includied journals. In the Web-version, it is easy. You can just type "J PHYS CHEM-US" in the cited reference search or if you wish "WALL STREET J" and you get the citations. It seems virtually impossible for me for the ISI (or Scopus) to attribute the citations to "J Phys Chem-US" to either "J Phys Chem A" or "J Phys Chem B". The same holds true for the BBA-volumes, etc. I don't blame them, but one should be aware of the problem. This underestimates the citations, but as you know we found also 21.5% overestimation in the case of "Angewandte Chemie" because of people citing both editions. However, the group of journals for which this latter effect may happen, can be delimited. You don't mind if I am not going to explain the vector space model. I think the reference is Salton & McGill (1983) and if I remember correctly, the explanation is rather algebraic. With best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J Bensman > Sent: Friday, December 21, 2007 4:01 PM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Loet, > In re to your first paragraph, if you read the paper that is posted on > Dr. Garfield's Web site, you will see that the probability was very > stable across time both in terms of the Impact Factor and Total Cites > not at the aggregate level but within one discipline--chemistry. This > stability is essentially a reflection of the stability of the > underlying > social stratification system of chemistry. The only consistent change > in probability was the continuing increase in dominance of > the journals > at the top of both measures, indicating the success-breeds-success > mechanism of the Matthew Effect--technically known as "contagion" in > statistics. This is the basic reason for the stability of both the > social stratification system and the journal system based upon it. > > In re your method, I must admit that generally it shoots right by me. > When I was young, a mathematics teacher once told me that minds can be > divided into two types--those that think linearly and are good in > algebra, and those that think spatially and are good in geometry. The > teacher said that people very good in algebra often have hard time in > geometry. I was extremely good in algebra but had a hard time in > geometry due to difficulty in grasping spatial relationships. > It seems > that computer programmers have to be able to think spatially as well, > and I have a hard time understanding this. > > However, your most important recent discovery--in my opinion--was in > your recent "Caveats" paper, where you prove that JCRs do not > aggregate > Total Cites across title changes, splits, etc. In other > words, much of > the backfile is left out of the count. From my historical > perspective, > this is a most serious flaw. You also have to understand that I am a > catalog librarian and define serial bibliographic entities in terms of > volume count--if the volume sequence is consistent, it is > still the same > journal despite the title change. I investigated the problem briefly > and found that I could not aggregate more than three years. I would > like to know how you did that. For me it means that for > Total Cites to > be good, Total Cites across 3 years have to be highly correlated with > Total Cites across the entire backfile. An initial view was > that such a > short backfile was a sufficient sample. If this is so, then the Total > Cites measure is good. > > Stephen J. Bensman > LSU Libraries > Louisiana State University > Baton Rouge, LA 70803 > USA > notsjb at lsu.edu > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > Sent: Friday, December 21, 2007 1:05 AM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Stephen and colleagues, > > These (Spearman) correlations teach us, in my opinion, that > the measures > covary across disciplines at the aggregate level. Since impact factors > are > higher in the biomedical sciences, library usages and expert ratings > would > be expected to be higher in these sciences as well? > > I would expect the c/p ratio, the impact factor, and the immediacy > factor to > correlate highly as one group, but total publication, total citations, > library usage, expert ratings, etc., as a second group (size > related). > > As you know, my preference goes in the direction of mapping local > citation > impact environments. These can be visualized using, for example, the > files > at http://www.leydesdorff.net/jcr06 . (See: Visualization of the > Citation > Impact Environments of Scientific Journals: An online mapping > exercise, > Journal of the American Society for Information Science and Technology > 58(1), 25-38, 2007.) The normalization in terms of the vector space > (cosine) > takes care of the size effects in the relations (links), and > size can be > considered as an attribute of the nodes. > > I have no better operationalization at the moment, but I am open for > suggestions. > > Best wishes, > > > Loet > > ________________________________ > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR), > Kloveniersburgwal 48, 1012 CX Amsterdam. > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J. Bensman > > Sent: Thursday, December 20, 2007 10:37 PM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > I try to do some of this in the paper posted on Dr. > > Garfield's Web site at: > > > > > > > > http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf > > > > > > > > You might want to look at the second half of the paper, where > > I discuss > > the Impact Factor in terms of Poisson lambdas, sampling > > variance, random > > error, etc. The amazing thing to me, at least, is that > > despite all the > > random error and sampling variance, there is a remarkable > > stability of > > probability across time with Spearman rhos of 0.9 and above > with high > > respectable correlations with Total Cites, library use, and expert > > ratings. Most impact factors move up and down within > > extremely narrow > > limits across time. I found a similar phenomenon in a paper > > just accepted > > by JASIST called "Distributional Differences of the Impact > > Factor in the > > Sciences vs. the Social Sciences: An Analysis of the Probabilistic > > Structure of the 2005 Journal Citation Reports." I no > > longer own the > > copyright and so cannot post it, but I suppose that I can let > > you read it > > on a private basis, if you're willing to suffer the pain of > > reading it. > > There is much more to the Impact Factor than meets the eye, > > and it is an > > extremely good measure for many purposes, if of extremely > > doubtful use for > > ranking purposes in the vast bulk of the cases. > > > > > > > > Stephen J. Bensman, Ph.D. > > LSU Libraries > > Louisiana State University > > Baton Rouge, LA 70803 > > USA > > notsjb at lsu.edu > > > From notsjb at LSU.EDU Fri Dec 21 12:09:41 2007 From: notsjb at LSU.EDU (Stephen J Bensman) Date: Fri, 21 Dec 2007 11:09:41 -0600 Subject: accuracy of Thomson data In-Reply-To: A<002501c843ee$dfd1b880$6702a8c0@loet> Message-ID: Loet, Thanks for the tip. I thought of that but that it requires knowing all the abbreviations used for the various parts. Then there was the problem of defining in what year the cites were made. They have to be limited to the JCR Year. At that point my mind boggled at the complexity of the process, and I thought perhaps it best to restrict oneself to what can be aggregated in the JCR and rely on the adequate sample theory that the JCRs first used. But I did not put a lot of time into this, because I am no longer interested in the Impact Factor. Thanks for sparing me the explanation of the "vector space models." The only vectors I know are compass ones used for triangulation purposes to knock out enemy artillery and other unhealthy things. Stephen J. Bensman LSU Libraries Louisiana State University Baton Rouge, LA 70803 USA notsjb at lsu.edu -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff Sent: Friday, December 21, 2007 10:31 AM To: SIGMETRICS at LISTSERV.UTK.EDU Subject: Re: [SIGMETRICS] accuracy of Thomson data Dear Stephen, As you know, I was interested in the so-called "externally-cited impact factor" of a journal which is not included in the set and then I realized that one can search on non-includied journals. In the Web-version, it is easy. You can just type "J PHYS CHEM-US" in the cited reference search or if you wish "WALL STREET J" and you get the citations. It seems virtually impossible for me for the ISI (or Scopus) to attribute the citations to "J Phys Chem-US" to either "J Phys Chem A" or "J Phys Chem B". The same holds true for the BBA-volumes, etc. I don't blame them, but one should be aware of the problem. This underestimates the citations, but as you know we found also 21.5% overestimation in the case of "Angewandte Chemie" because of people citing both editions. However, the group of journals for which this latter effect may happen, can be delimited. You don't mind if I am not going to explain the vector space model. I think the reference is Salton & McGill (1983) and if I remember correctly, the explanation is rather algebraic. With best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J Bensman > Sent: Friday, December 21, 2007 4:01 PM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Loet, > In re to your first paragraph, if you read the paper that is posted on > Dr. Garfield's Web site, you will see that the probability was very > stable across time both in terms of the Impact Factor and Total Cites > not at the aggregate level but within one discipline--chemistry. This > stability is essentially a reflection of the stability of the > underlying > social stratification system of chemistry. The only consistent change > in probability was the continuing increase in dominance of > the journals > at the top of both measures, indicating the success-breeds-success > mechanism of the Matthew Effect--technically known as "contagion" in > statistics. This is the basic reason for the stability of both the > social stratification system and the journal system based upon it. > > In re your method, I must admit that generally it shoots right by me. > When I was young, a mathematics teacher once told me that minds can be > divided into two types--those that think linearly and are good in > algebra, and those that think spatially and are good in geometry. The > teacher said that people very good in algebra often have hard time in > geometry. I was extremely good in algebra but had a hard time in > geometry due to difficulty in grasping spatial relationships. > It seems > that computer programmers have to be able to think spatially as well, > and I have a hard time understanding this. > > However, your most important recent discovery--in my opinion--was in > your recent "Caveats" paper, where you prove that JCRs do not > aggregate > Total Cites across title changes, splits, etc. In other > words, much of > the backfile is left out of the count. From my historical > perspective, > this is a most serious flaw. You also have to understand that I am a > catalog librarian and define serial bibliographic entities in terms of > volume count--if the volume sequence is consistent, it is > still the same > journal despite the title change. I investigated the problem briefly > and found that I could not aggregate more than three years. I would > like to know how you did that. For me it means that for > Total Cites to > be good, Total Cites across 3 years have to be highly correlated with > Total Cites across the entire backfile. An initial view was > that such a > short backfile was a sufficient sample. If this is so, then the Total > Cites measure is good. > > Stephen J. Bensman > LSU Libraries > Louisiana State University > Baton Rouge, LA 70803 > USA > notsjb at lsu.edu > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > Sent: Friday, December 21, 2007 1:05 AM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Stephen and colleagues, > > These (Spearman) correlations teach us, in my opinion, that > the measures > covary across disciplines at the aggregate level. Since impact factors > are > higher in the biomedical sciences, library usages and expert ratings > would > be expected to be higher in these sciences as well? > > I would expect the c/p ratio, the impact factor, and the immediacy > factor to > correlate highly as one group, but total publication, total citations, > library usage, expert ratings, etc., as a second group (size > related). > > As you know, my preference goes in the direction of mapping local > citation > impact environments. These can be visualized using, for example, the > files > at http://www.leydesdorff.net/jcr06 . (See: Visualization of the > Citation > Impact Environments of Scientific Journals: An online mapping > exercise, > Journal of the American Society for Information Science and Technology > 58(1), 25-38, 2007.) The normalization in terms of the vector space > (cosine) > takes care of the size effects in the relations (links), and > size can be > considered as an attribute of the nodes. > > I have no better operationalization at the moment, but I am open for > suggestions. > > Best wishes, > > > Loet > > ________________________________ > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR), > Kloveniersburgwal 48, 1012 CX Amsterdam. > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J. Bensman > > Sent: Thursday, December 20, 2007 10:37 PM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > I try to do some of this in the paper posted on Dr. > > Garfield's Web site at: > > > > > > > > http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf > > > > > > > > You might want to look at the second half of the paper, where > > I discuss > > the Impact Factor in terms of Poisson lambdas, sampling > > variance, random > > error, etc. The amazing thing to me, at least, is that > > despite all the > > random error and sampling variance, there is a remarkable > > stability of > > probability across time with Spearman rhos of 0.9 and above > with high > > respectable correlations with Total Cites, library use, and expert > > ratings. Most impact factors move up and down within > > extremely narrow > > limits across time. I found a similar phenomenon in a paper > > just accepted > > by JASIST called "Distributional Differences of the Impact > > Factor in the > > Sciences vs. the Social Sciences: An Analysis of the Probabilistic > > Structure of the 2005 Journal Citation Reports." I no > > longer own the > > copyright and so cannot post it, but I suppose that I can let > > you read it > > on a private basis, if you're willing to suffer the pain of > > reading it. > > There is much more to the Impact Factor than meets the eye, > > and it is an > > extremely good measure for many purposes, if of extremely > > doubtful use for > > ranking purposes in the vast bulk of the cases. > > > > > > > > Stephen J. Bensman, Ph.D. > > LSU Libraries > > Louisiana State University > > Baton Rouge, LA 70803 > > USA > > notsjb at lsu.edu > > > From notsjb at LSU.EDU Fri Dec 21 12:24:03 2007 From: notsjb at LSU.EDU (Stephen J Bensman) Date: Fri, 21 Dec 2007 11:24:03 -0600 Subject: accuracy of Thomson data In-Reply-To: A<002501c843ee$dfd1b880$6702a8c0@loet> Message-ID: PS. Another reason for relying on JCR is that, if a journal is significant and important, it is usually--but not always--bibliographically stable. Minor journals experiencing difficulties often change titles, etc., in search of a market niche for survival. With JCR total cites, the advantage is to the important, stable titles, and against the minor, bibliographically unstable ones. It is one way to single out the important journals comprising the dominant citation core of Garfield's Law of Concentration. t Stephen J. Bensman LSU Libraries Louisiana State University Baton Rouge, LA 70803 USA notsjb at lsu.edu -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff Sent: Friday, December 21, 2007 10:31 AM To: SIGMETRICS at LISTSERV.UTK.EDU Subject: Re: [SIGMETRICS] accuracy of Thomson data Dear Stephen, As you know, I was interested in the so-called "externally-cited impact factor" of a journal which is not included in the set and then I realized that one can search on non-includied journals. In the Web-version, it is easy. You can just type "J PHYS CHEM-US" in the cited reference search or if you wish "WALL STREET J" and you get the citations. It seems virtually impossible for me for the ISI (or Scopus) to attribute the citations to "J Phys Chem-US" to either "J Phys Chem A" or "J Phys Chem B". The same holds true for the BBA-volumes, etc. I don't blame them, but one should be aware of the problem. This underestimates the citations, but as you know we found also 21.5% overestimation in the case of "Angewandte Chemie" because of people citing both editions. However, the group of journals for which this latter effect may happen, can be delimited. You don't mind if I am not going to explain the vector space model. I think the reference is Salton & McGill (1983) and if I remember correctly, the explanation is rather algebraic. With best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J Bensman > Sent: Friday, December 21, 2007 4:01 PM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Loet, > In re to your first paragraph, if you read the paper that is posted on > Dr. Garfield's Web site, you will see that the probability was very > stable across time both in terms of the Impact Factor and Total Cites > not at the aggregate level but within one discipline--chemistry. This > stability is essentially a reflection of the stability of the > underlying > social stratification system of chemistry. The only consistent change > in probability was the continuing increase in dominance of > the journals > at the top of both measures, indicating the success-breeds-success > mechanism of the Matthew Effect--technically known as "contagion" in > statistics. This is the basic reason for the stability of both the > social stratification system and the journal system based upon it. > > In re your method, I must admit that generally it shoots right by me. > When I was young, a mathematics teacher once told me that minds can be > divided into two types--those that think linearly and are good in > algebra, and those that think spatially and are good in geometry. The > teacher said that people very good in algebra often have hard time in > geometry. I was extremely good in algebra but had a hard time in > geometry due to difficulty in grasping spatial relationships. > It seems > that computer programmers have to be able to think spatially as well, > and I have a hard time understanding this. > > However, your most important recent discovery--in my opinion--was in > your recent "Caveats" paper, where you prove that JCRs do not > aggregate > Total Cites across title changes, splits, etc. In other > words, much of > the backfile is left out of the count. From my historical > perspective, > this is a most serious flaw. You also have to understand that I am a > catalog librarian and define serial bibliographic entities in terms of > volume count--if the volume sequence is consistent, it is > still the same > journal despite the title change. I investigated the problem briefly > and found that I could not aggregate more than three years. I would > like to know how you did that. For me it means that for > Total Cites to > be good, Total Cites across 3 years have to be highly correlated with > Total Cites across the entire backfile. An initial view was > that such a > short backfile was a sufficient sample. If this is so, then the Total > Cites measure is good. > > Stephen J. Bensman > LSU Libraries > Louisiana State University > Baton Rouge, LA 70803 > USA > notsjb at lsu.edu > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > Sent: Friday, December 21, 2007 1:05 AM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Stephen and colleagues, > > These (Spearman) correlations teach us, in my opinion, that > the measures > covary across disciplines at the aggregate level. Since impact factors > are > higher in the biomedical sciences, library usages and expert ratings > would > be expected to be higher in these sciences as well? > > I would expect the c/p ratio, the impact factor, and the immediacy > factor to > correlate highly as one group, but total publication, total citations, > library usage, expert ratings, etc., as a second group (size > related). > > As you know, my preference goes in the direction of mapping local > citation > impact environments. These can be visualized using, for example, the > files > at http://www.leydesdorff.net/jcr06 . (See: Visualization of the > Citation > Impact Environments of Scientific Journals: An online mapping > exercise, > Journal of the American Society for Information Science and Technology > 58(1), 25-38, 2007.) The normalization in terms of the vector space > (cosine) > takes care of the size effects in the relations (links), and > size can be > considered as an attribute of the nodes. > > I have no better operationalization at the moment, but I am open for > suggestions. > > Best wishes, > > > Loet > > ________________________________ > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR), > Kloveniersburgwal 48, 1012 CX Amsterdam. > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J. Bensman > > Sent: Thursday, December 20, 2007 10:37 PM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > I try to do some of this in the paper posted on Dr. > > Garfield's Web site at: > > > > > > > > http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf > > > > > > > > You might want to look at the second half of the paper, where > > I discuss > > the Impact Factor in terms of Poisson lambdas, sampling > > variance, random > > error, etc. The amazing thing to me, at least, is that > > despite all the > > random error and sampling variance, there is a remarkable > > stability of > > probability across time with Spearman rhos of 0.9 and above > with high > > respectable correlations with Total Cites, library use, and expert > > ratings. Most impact factors move up and down within > > extremely narrow > > limits across time. I found a similar phenomenon in a paper > > just accepted > > by JASIST called "Distributional Differences of the Impact > > Factor in the > > Sciences vs. the Social Sciences: An Analysis of the Probabilistic > > Structure of the 2005 Journal Citation Reports." I no > > longer own the > > copyright and so cannot post it, but I suppose that I can let > > you read it > > on a private basis, if you're willing to suffer the pain of > > reading it. > > There is much more to the Impact Factor than meets the eye, > > and it is an > > extremely good measure for many purposes, if of extremely > > doubtful use for > > ranking purposes in the vast bulk of the cases. > > > > > > > > Stephen J. Bensman, Ph.D. > > LSU Libraries > > Louisiana State University > > Baton Rouge, LA 70803 > > USA > > notsjb at lsu.edu > > > From harnad at ECS.SOTON.AC.UK Fri Dec 21 16:55:50 2007 From: harnad at ECS.SOTON.AC.UK (Stevan Harnad) Date: Fri, 21 Dec 2007 21:55:50 +0000 Subject: After the NIH Green OA Self-Archiving Mandate In-Reply-To: Message-ID: ** Cross-Posted ** "Optimizing OA Self-Archiving Mandates: What? Where? When? Why? How?" http://openaccess.eprints.org/index.php?/archives/136-guid.html This is from your greedy, never-satisfied Archivangelist: Now that the NIH Green OA Self-Archiving Mandate looks as if it will shortly be signed into Law: (1) There is no need to wait to implement the NIH mandate (2) There is no need to ape it: It can easily be optimised (3) There is no need to reserve Green OA self-archiving for NIH-funded biomedical research (4) All universities should mandate that all their research articles in all their disciplines are self-archived (5) There is no need to self-archive all those articles in PubMed Central: They should be self-archived in each university's own Institutional Repository (6) There is no need to allow deposit to be embargoed for 12 months: Deposit should be mandated immediately upon acceptance for publication (7) Embargoed articles can be set as Closed Access during any embargo (8) Meanwhile the Institutional Repository will allow users webwide to email the author a semi-automatic request for an eprint for individual use immediately for any deposit that is not yet OA. This will provide either immediate OA (62%) or almost-immediate, almost-OA (38%) for all research articles in all disciplines. Summary of how to optimize the Green OA Self-Archiving Mandate: (I) Universities mandate deposit in their own Institutional Repositories. (II) Deposit is mandated immediately upon acceptance for publication. (III) The permissible embargo on the date the deposit is set as OA, not on the day the deposit is made. "Optimizing OA Self-Archiving Mandates: What? Where? When? Why? How?" http://openaccess.eprints.org/index.php?/archives/136-guid.html Stevan Harnad AMERICAN SCIENTIST OPEN ACCESS FORUM: http://amsci-forum.amsci.org/archives/American-Scientist-Open-Access-Forum.html http://www.ecs.soton.ac.uk/~harnad/Hypermail/Amsci/ UNIVERSITIES and RESEARCH FUNDERS: If you have adopted or plan to adopt an policy of providing Open Access to your own research article output, please describe your policy at: http://www.eprints.org/signup/sign.php http://openaccess.eprints.org/index.php?/archives/71-guid.html http://openaccess.eprints.org/index.php?/archives/136-guid.html OPEN-ACCESS-PROVISION POLICY: BOAI-1 ("Green"): Publish your article in a suitable toll-access journal http://romeo.eprints.org/ OR BOAI-2 ("Gold"): Publish your article in an open-access journal if/when a suitable one exists. http://www.doaj.org/ AND in BOTH cases self-archive a supplementary version of your article in your own institutional repository. http://www.eprints.org/self-faq/ http://archives.eprints.org/ http://openaccess.eprints.org/ On Thu, 20 Dec 2007, Stevan Harnad wrote: > See Peter Suber's Open Access News: > Congress sends revised spending bill, and OA mandate for NIH, > to President > http://www.earlham.edu/~peters/fos/2007/12/congress-sends-revised-spending-bill.html > > Also: > >> Date: Thu, 20 Dec 2007 14:48:48 -0000 >> From: Alma Swan >> Cc: 'Peter Suber' >> >> The Appropriations Bill, with the language in about the NIH mandate, passed >> in the US Senate last night. It now *will* be signed off by President Bush. >> See Heather's message below. >> >> Heather deserves huge congratulations... >> Now to try to emulate her in Brussels ... > >> -----Original Message----- >> From: Heather Joseph heather -- arl.org >> Sent: 20 December 2007 14:17 >> To: Alma Swan; David Prosser >> >> Bill passed last night, and Bush will sign in next few days... > From loet at LEYDESDORFF.NET Sat Dec 22 03:54:57 2007 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Sat, 22 Dec 2007 09:54:57 +0100 Subject: accuracy of Thomson data In-Reply-To: <4928689828488E458AECE7AFDCB52CFE2288A4@email003.lsu.edu> Message-ID: Dear Stephen, Paradoxically, the 50,000+ yearly citations to "J Phys Chem-US" do not affect so much the Impact Factor (because of its limitation to the last two years), but it does dramatically affect Total Cites. The journal was split into different parts in 1997. (Yesterday, the ACS launched J Phys Chem-C with a focus on nano.) The lesson from this seems to me a policy advice to scientific publishers: do not change the name of the journal! The journal (and potentially the authors) will suffer in terms of visibility. Best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Stephen J Bensman > Sent: Friday, December 21, 2007 6:10 PM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Loet, > Thanks for the tip. I thought of that but that it requires > knowing all > the abbreviations used for the various parts. Then there was the > problem of defining in what year the cites were made. They have to be > limited to the JCR Year. At that point my mind boggled at the > complexity of the process, and I thought perhaps it best to restrict > oneself to what can be aggregated in the JCR and rely on the adequate > sample theory that the JCRs first used. But I did not put a lot of > time into this, because I am no longer interested in the > Impact Factor. > > Thanks for sparing me the explanation of the "vector space > models." The > only vectors I know are compass ones used for triangulation > purposes to > knock out enemy artillery and other unhealthy things. > > Stephen J. Bensman > LSU Libraries > Louisiana State University > Baton Rouge, LA 70803 > USA > notsjb at lsu.edu > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > Sent: Friday, December 21, 2007 10:31 AM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Stephen, > > As you know, I was interested in the so-called > "externally-cited impact > factor" of a journal which is not included in the set and then I > realized > that one can search on non-includied journals. In the > Web-version, it is > easy. You can just type "J PHYS CHEM-US" in the cited reference search > or if > you wish "WALL STREET J" and you get the citations. > > It seems virtually impossible for me for the ISI (or Scopus) to > attribute > the citations to "J Phys Chem-US" to either "J Phys Chem A" or "J Phys > Chem > B". The same holds true for the BBA-volumes, etc. I don't blame them, > but > one should be aware of the problem. This underestimates the citations, > but > as you know we found also 21.5% overestimation in the case of > "Angewandte > Chemie" because of people citing both editions. However, the group of > journals for which this latter effect may happen, can be delimited. > > You don't mind if I am not going to explain the vector space model. I > think > the reference is Salton & McGill (1983) and if I remember > correctly, the > explanation is rather algebraic. > > With best wishes, > > > Loet > > ________________________________ > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR), > Kloveniersburgwal 48, 1012 CX Amsterdam. > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J Bensman > > Sent: Friday, December 21, 2007 4:01 PM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Loet, > > In re to your first paragraph, if you read the paper that > is posted on > > Dr. Garfield's Web site, you will see that the probability was very > > stable across time both in terms of the Impact Factor and > Total Cites > > not at the aggregate level but within one > discipline--chemistry. This > > stability is essentially a reflection of the stability of the > > underlying > > social stratification system of chemistry. The only > consistent change > > in probability was the continuing increase in dominance of > > the journals > > at the top of both measures, indicating the success-breeds-success > > mechanism of the Matthew Effect--technically known as "contagion" in > > statistics. This is the basic reason for the stability of both the > > social stratification system and the journal system based upon it. > > > > In re your method, I must admit that generally it shoots > right by me. > > When I was young, a mathematics teacher once told me that > minds can be > > divided into two types--those that think linearly and are good in > > algebra, and those that think spatially and are good in > geometry. The > > teacher said that people very good in algebra often have > hard time in > > geometry. I was extremely good in algebra but had a hard time in > > geometry due to difficulty in grasping spatial relationships. > > It seems > > that computer programmers have to be able to think > spatially as well, > > and I have a hard time understanding this. > > > > However, your most important recent discovery--in my opinion--was in > > your recent "Caveats" paper, where you prove that JCRs do not > > aggregate > > Total Cites across title changes, splits, etc. In other > > words, much of > > the backfile is left out of the count. From my historical > > perspective, > > this is a most serious flaw. You also have to understand > that I am a > > catalog librarian and define serial bibliographic entities > in terms of > > volume count--if the volume sequence is consistent, it is > > still the same > > journal despite the title change. I investigated the > problem briefly > > and found that I could not aggregate more than three years. I would > > like to know how you did that. For me it means that for > > Total Cites to > > be good, Total Cites across 3 years have to be highly > correlated with > > Total Cites across the entire backfile. An initial view was > > that such a > > short backfile was a sufficient sample. If this is so, > then the Total > > Cites measure is good. > > > > Stephen J. Bensman > > LSU Libraries > > Louisiana State University > > Baton Rouge, LA 70803 > > USA > > notsjb at lsu.edu > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > > Sent: Friday, December 21, 2007 1:05 AM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Dear Stephen and colleagues, > > > > These (Spearman) correlations teach us, in my opinion, that > > the measures > > covary across disciplines at the aggregate level. Since > impact factors > > are > > higher in the biomedical sciences, library usages and expert ratings > > would > > be expected to be higher in these sciences as well? > > > > I would expect the c/p ratio, the impact factor, and the immediacy > > factor to > > correlate highly as one group, but total publication, total > citations, > > library usage, expert ratings, etc., as a second group (size > > related). > > > > As you know, my preference goes in the direction of mapping local > > citation > > impact environments. These can be visualized using, for > example, the > > files > > at http://www.leydesdorff.net/jcr06 . (See: Visualization of the > > Citation > > Impact Environments of Scientific Journals: An online mapping > > exercise, > > Journal of the American Society for Information Science and > Technology > > 58(1), 25-38, 2007.) The normalization in terms of the vector space > > (cosine) > > takes care of the size effects in the relations (links), and > > size can be > > considered as an attribute of the nodes. > > > > I have no better operationalization at the moment, but I am open for > > suggestions. > > > > Best wishes, > > > > > > Loet > > > > ________________________________ > > > > Loet Leydesdorff > > Amsterdam School of Communications Research (ASCoR), > > Kloveniersburgwal 48, 1012 CX Amsterdam. > > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > > > > > -----Original Message----- > > > From: ASIS&T Special Interest Group on Metrics > > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen > J. Bensman > > > Sent: Thursday, December 20, 2007 10:37 PM > > > To: SIGMETRICS at LISTSERV.UTK.EDU > > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > I try to do some of this in the paper posted on Dr. > > > Garfield's Web site at: > > > > > > > > > > > > http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf > > > > > > > > > > > > You might want to look at the second half of the paper, where > > > I discuss > > > the Impact Factor in terms of Poisson lambdas, sampling > > > variance, random > > > error, etc. The amazing thing to me, at least, is that > > > despite all the > > > random error and sampling variance, there is a remarkable > > > stability of > > > probability across time with Spearman rhos of 0.9 and above > > with high > > > respectable correlations with Total Cites, library use, > and expert > > > ratings. Most impact factors move up and down within > > > extremely narrow > > > limits across time. I found a similar phenomenon in a paper > > > just accepted > > > by JASIST called "Distributional Differences of the Impact > > > Factor in the > > > Sciences vs. the Social Sciences: An Analysis of the > Probabilistic > > > Structure of the 2005 Journal Citation Reports." I no > > > longer own the > > > copyright and so cannot post it, but I suppose that I can let > > > you read it > > > on a private basis, if you're willing to suffer the pain of > > > reading it. > > > There is much more to the Impact Factor than meets the eye, > > > and it is an > > > extremely good measure for many purposes, if of extremely > > > doubtful use for > > > ranking purposes in the vast bulk of the cases. > > > > > > > > > > > > Stephen J. Bensman, Ph.D. > > > LSU Libraries > > > Louisiana State University > > > Baton Rouge, LA 70803 > > > USA > > > notsjb at lsu.edu > > > > > > From eugene.garfield at THOMSON.COM Sat Dec 22 13:09:48 2007 From: eugene.garfield at THOMSON.COM (Eugene Garfield) Date: Sat, 22 Dec 2007 13:09:48 -0500 Subject: accuracy of Thomson data In-Reply-To: <001a01c84478$5489f230$6402a8c0@loet> Message-ID: Dear Loet: The accuracy of "total cites" will improve when "journal abbreviation spell checkers" are introduced in the publishing process. This is technologically possible now with cheap terabyte memories. But to advise publishers to avoid "twigging" journals or to avoid name changes on the basis of this kind of "visibility" is nonsense. The ultimate conclusion is to never start any new journals. The "key-save" process described long ago already standardizes many author journal abbreviation errors but was always limited by computer memory considerations and the lack of complete legacy files. "Journal Editors Awaken to the Impact of Citation Errors. How We Control Them at ISI " http://www.garfield.library.upenn.edu/essays/v13p367y1990.pdf I believe it was Curtis Benjamin who invented the term twigging. Gene -----Original Message----- From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Loet Leydesdorff Sent: Saturday, December 22, 2007 3:55 AM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] accuracy of Thomson data Dear Stephen, Paradoxically, the 50,000+ yearly citations to "J Phys Chem-US" do not affect so much the Impact Factor (because of its limitation to the last two years), but it does dramatically affect Total Cites. The journal was split into different parts in 1997. (Yesterday, the ACS launched J Phys Chem-C with a focus on nano.) The lesson from this seems to me a policy advice to scientific publishers: do not change the name of the journal! The journal (and potentially the authors) will suffer in terms of visibility. Best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Stephen J Bensman > Sent: Friday, December 21, 2007 6:10 PM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Loet, > Thanks for the tip. I thought of that but that it requires > knowing all > the abbreviations used for the various parts. Then there was the > problem of defining in what year the cites were made. They have to be > limited to the JCR Year. At that point my mind boggled at the > complexity of the process, and I thought perhaps it best to restrict > oneself to what can be aggregated in the JCR and rely on the adequate > sample theory that the JCRs first used. But I did not put a lot of > time into this, because I am no longer interested in the > Impact Factor. > > Thanks for sparing me the explanation of the "vector space > models." The > only vectors I know are compass ones used for triangulation > purposes to > knock out enemy artillery and other unhealthy things. > > Stephen J. Bensman > LSU Libraries > Louisiana State University > Baton Rouge, LA 70803 > USA > notsjb at lsu.edu > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > Sent: Friday, December 21, 2007 10:31 AM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Stephen, > > As you know, I was interested in the so-called > "externally-cited impact > factor" of a journal which is not included in the set and then I > realized > that one can search on non-includied journals. In the > Web-version, it is > easy. You can just type "J PHYS CHEM-US" in the cited reference search > or if > you wish "WALL STREET J" and you get the citations. > > It seems virtually impossible for me for the ISI (or Scopus) to > attribute > the citations to "J Phys Chem-US" to either "J Phys Chem A" or "J Phys > Chem > B". The same holds true for the BBA-volumes, etc. I don't blame them, > but > one should be aware of the problem. This underestimates the citations, > but > as you know we found also 21.5% overestimation in the case of > "Angewandte > Chemie" because of people citing both editions. However, the group of > journals for which this latter effect may happen, can be delimited. > > You don't mind if I am not going to explain the vector space model. I > think > the reference is Salton & McGill (1983) and if I remember > correctly, the > explanation is rather algebraic. > > With best wishes, > > > Loet > > ________________________________ > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR), > Kloveniersburgwal 48, 1012 CX Amsterdam. > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J Bensman > > Sent: Friday, December 21, 2007 4:01 PM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Loet, > > In re to your first paragraph, if you read the paper that > is posted on > > Dr. Garfield's Web site, you will see that the probability was very > > stable across time both in terms of the Impact Factor and > Total Cites > > not at the aggregate level but within one > discipline--chemistry. This > > stability is essentially a reflection of the stability of the > > underlying > > social stratification system of chemistry. The only > consistent change > > in probability was the continuing increase in dominance of > > the journals > > at the top of both measures, indicating the success-breeds-success > > mechanism of the Matthew Effect--technically known as "contagion" in > > statistics. This is the basic reason for the stability of both the > > social stratification system and the journal system based upon it. > > > > In re your method, I must admit that generally it shoots > right by me. > > When I was young, a mathematics teacher once told me that > minds can be > > divided into two types--those that think linearly and are good in > > algebra, and those that think spatially and are good in > geometry. The > > teacher said that people very good in algebra often have > hard time in > > geometry. I was extremely good in algebra but had a hard time in > > geometry due to difficulty in grasping spatial relationships. > > It seems > > that computer programmers have to be able to think > spatially as well, > > and I have a hard time understanding this. > > > > However, your most important recent discovery--in my opinion--was in > > your recent "Caveats" paper, where you prove that JCRs do not > > aggregate > > Total Cites across title changes, splits, etc. In other > > words, much of > > the backfile is left out of the count. From my historical > > perspective, > > this is a most serious flaw. You also have to understand > that I am a > > catalog librarian and define serial bibliographic entities > in terms of > > volume count--if the volume sequence is consistent, it is > > still the same > > journal despite the title change. I investigated the > problem briefly > > and found that I could not aggregate more than three years. I would > > like to know how you did that. For me it means that for > > Total Cites to > > be good, Total Cites across 3 years have to be highly > correlated with > > Total Cites across the entire backfile. An initial view was > > that such a > > short backfile was a sufficient sample. If this is so, > then the Total > > Cites measure is good. > > > > Stephen J. Bensman > > LSU Libraries > > Louisiana State University > > Baton Rouge, LA 70803 > > USA > > notsjb at lsu.edu > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > > Sent: Friday, December 21, 2007 1:05 AM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Dear Stephen and colleagues, > > > > These (Spearman) correlations teach us, in my opinion, that > > the measures > > covary across disciplines at the aggregate level. Since > impact factors > > are > > higher in the biomedical sciences, library usages and expert ratings > > would > > be expected to be higher in these sciences as well? > > > > I would expect the c/p ratio, the impact factor, and the immediacy > > factor to > > correlate highly as one group, but total publication, total > citations, > > library usage, expert ratings, etc., as a second group (size > > related). > > > > As you know, my preference goes in the direction of mapping local > > citation > > impact environments. These can be visualized using, for > example, the > > files > > at http://www.leydesdorff.net/jcr06 . (See: Visualization of the > > Citation > > Impact Environments of Scientific Journals: An online mapping > > exercise, > > Journal of the American Society for Information Science and > Technology > > 58(1), 25-38, 2007.) The normalization in terms of the vector space > > (cosine) > > takes care of the size effects in the relations (links), and > > size can be > > considered as an attribute of the nodes. > > > > I have no better operationalization at the moment, but I am open for > > suggestions. > > > > Best wishes, > > > > > > Loet > > > > ________________________________ > > > > Loet Leydesdorff > > Amsterdam School of Communications Research (ASCoR), > > Kloveniersburgwal 48, 1012 CX Amsterdam. > > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > > > > > -----Original Message----- > > > From: ASIS&T Special Interest Group on Metrics > > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen > J. Bensman > > > Sent: Thursday, December 20, 2007 10:37 PM > > > To: SIGMETRICS at LISTSERV.UTK.EDU > > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > I try to do some of this in the paper posted on Dr. > > > Garfield's Web site at: > > > > > > > > > > > > http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf > > > > > > > > > > > > You might want to look at the second half of the paper, where > > > I discuss > > > the Impact Factor in terms of Poisson lambdas, sampling > > > variance, random > > > error, etc. The amazing thing to me, at least, is that > > > despite all the > > > random error and sampling variance, there is a remarkable > > > stability of > > > probability across time with Spearman rhos of 0.9 and above > > with high > > > respectable correlations with Total Cites, library use, > and expert > > > ratings. Most impact factors move up and down within > > > extremely narrow > > > limits across time. I found a similar phenomenon in a paper > > > just accepted > > > by JASIST called "Distributional Differences of the Impact > > > Factor in the > > > Sciences vs. the Social Sciences: An Analysis of the > Probabilistic > > > Structure of the 2005 Journal Citation Reports." I no > > > longer own the > > > copyright and so cannot post it, but I suppose that I can let > > > you read it > > > on a private basis, if you're willing to suffer the pain of > > > reading it. > > > There is much more to the Impact Factor than meets the eye, > > > and it is an > > > extremely good measure for many purposes, if of extremely > > > doubtful use for > > > ranking purposes in the vast bulk of the cases. > > > > > > > > > > > > Stephen J. Bensman, Ph.D. > > > LSU Libraries > > > Louisiana State University > > > Baton Rouge, LA 70803 > > > USA > > > notsjb at lsu.edu > > > > > > From notsjb at LSU.EDU Sat Dec 22 15:25:46 2007 From: notsjb at LSU.EDU (Stephen J Bensman) Date: Sat, 22 Dec 2007 14:25:46 -0600 Subject: accuracy of Thomson data Message-ID: Loet, As Dr. Garfield pointed out, publishers and editors will do what they will do. You cannot expect them to set policy as to what will best improve their ranking in the ISI JCRs. Therefore, it behooves Thomson Scientific to make some improvements in the JCRs and the Web of Science. >From experimenting with the problem of Total Cites a bit, these are the improvements that I can suggest. From what I can determine, the JCRs have totally disaggregated bibliographic entries. There are treated separately changes that are not alphabetically continuous, parts, etc. This is actually good, because sometimes one has to work with disaggregated data. However, for various reasons, it is necessary to aggregate the data into uniform bibliographic entities. For example, to obtain the complete total cites for JASIST, you have to aggregate cites to the complete backfiles of JASIST, JASIS, and American Documentation to obtain the complete total cites. To help this, Thomson Scientific should do the following things; 1) Explain in the JCR Help how the cites are aggregated for Total Cites. 2) Expand the list of title changes, division into parts, etc., in the JCR Help from the three-year limit geared to the Impact Factor to the complete historical list of such changes. This list has appeared annually over the years, so it is a question of compiling them. This should give the necessary title abbreviations for backfile searches in the Web of Science. 3) Make it possible to limit the citations to these title segments to one JCR Year in the Web of Science. This may be possible, but I did not figure out how to do this. 4) Explain all this in the JCR Help. If this is done, then the researcher should have complete flexibility in defining serials as bibliographic entities in the manner necessary for her/him. It will be a struggle, but it at least will be possible. If I remember correctly, the old JCRs had a lot of backfile data in them, but this seems to have disappeared in the new online ones. Stephen J. Bensman LSU Libraries Louisiana State University ________________________________ From: ASIS&T Special Interest Group on Metrics on behalf of Loet Leydesdorff Sent: Sat 12/22/2007 2:54 AM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] accuracy of Thomson data Dear Stephen, Paradoxically, the 50,000+ yearly citations to "J Phys Chem-US" do not affect so much the Impact Factor (because of its limitation to the last two years), but it does dramatically affect Total Cites. The journal was split into different parts in 1997. (Yesterday, the ACS launched J Phys Chem-C with a focus on nano.) The lesson from this seems to me a policy advice to scientific publishers: do not change the name of the journal! The journal (and potentially the authors) will suffer in terms of visibility. Best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Stephen J Bensman > Sent: Friday, December 21, 2007 6:10 PM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Loet, > Thanks for the tip. I thought of that but that it requires > knowing all > the abbreviations used for the various parts. Then there was the > problem of defining in what year the cites were made. They have to be > limited to the JCR Year. At that point my mind boggled at the > complexity of the process, and I thought perhaps it best to restrict > oneself to what can be aggregated in the JCR and rely on the adequate > sample theory that the JCRs first used. But I did not put a lot of > time into this, because I am no longer interested in the > Impact Factor. > > Thanks for sparing me the explanation of the "vector space > models." The > only vectors I know are compass ones used for triangulation > purposes to > knock out enemy artillery and other unhealthy things. > > Stephen J. Bensman > LSU Libraries > Louisiana State University > Baton Rouge, LA 70803 > USA > notsjb at lsu.edu > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > Sent: Friday, December 21, 2007 10:31 AM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Stephen, > > As you know, I was interested in the so-called > "externally-cited impact > factor" of a journal which is not included in the set and then I > realized > that one can search on non-includied journals. In the > Web-version, it is > easy. You can just type "J PHYS CHEM-US" in the cited reference search > or if > you wish "WALL STREET J" and you get the citations. > > It seems virtually impossible for me for the ISI (or Scopus) to > attribute > the citations to "J Phys Chem-US" to either "J Phys Chem A" or "J Phys > Chem > B". The same holds true for the BBA-volumes, etc. I don't blame them, > but > one should be aware of the problem. This underestimates the citations, > but > as you know we found also 21.5% overestimation in the case of > "Angewandte > Chemie" because of people citing both editions. However, the group of > journals for which this latter effect may happen, can be delimited. > > You don't mind if I am not going to explain the vector space model. I > think > the reference is Salton & McGill (1983) and if I remember > correctly, the > explanation is rather algebraic. > > With best wishes, > > > Loet > > ________________________________ > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR), > Kloveniersburgwal 48, 1012 CX Amsterdam. > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J Bensman > > Sent: Friday, December 21, 2007 4:01 PM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Loet, > > In re to your first paragraph, if you read the paper that > is posted on > > Dr. Garfield's Web site, you will see that the probability was very > > stable across time both in terms of the Impact Factor and > Total Cites > > not at the aggregate level but within one > discipline--chemistry. This > > stability is essentially a reflection of the stability of the > > underlying > > social stratification system of chemistry. The only > consistent change > > in probability was the continuing increase in dominance of > > the journals > > at the top of both measures, indicating the success-breeds-success > > mechanism of the Matthew Effect--technically known as "contagion" in > > statistics. This is the basic reason for the stability of both the > > social stratification system and the journal system based upon it. > > > > In re your method, I must admit that generally it shoots > right by me. > > When I was young, a mathematics teacher once told me that > minds can be > > divided into two types--those that think linearly and are good in > > algebra, and those that think spatially and are good in > geometry. The > > teacher said that people very good in algebra often have > hard time in > > geometry. I was extremely good in algebra but had a hard time in > > geometry due to difficulty in grasping spatial relationships. > > It seems > > that computer programmers have to be able to think > spatially as well, > > and I have a hard time understanding this. > > > > However, your most important recent discovery--in my opinion--was in > > your recent "Caveats" paper, where you prove that JCRs do not > > aggregate > > Total Cites across title changes, splits, etc. In other > > words, much of > > the backfile is left out of the count. From my historical > > perspective, > > this is a most serious flaw. You also have to understand > that I am a > > catalog librarian and define serial bibliographic entities > in terms of > > volume count--if the volume sequence is consistent, it is > > still the same > > journal despite the title change. I investigated the > problem briefly > > and found that I could not aggregate more than three years. I would > > like to know how you did that. For me it means that for > > Total Cites to > > be good, Total Cites across 3 years have to be highly > correlated with > > Total Cites across the entire backfile. An initial view was > > that such a > > short backfile was a sufficient sample. If this is so, > then the Total > > Cites measure is good. > > > > Stephen J. Bensman > > LSU Libraries > > Louisiana State University > > Baton Rouge, LA 70803 > > USA > > notsjb at lsu.edu > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > > Sent: Friday, December 21, 2007 1:05 AM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Dear Stephen and colleagues, > > > > These (Spearman) correlations teach us, in my opinion, that > > the measures > > covary across disciplines at the aggregate level. Since > impact factors > > are > > higher in the biomedical sciences, library usages and expert ratings > > would > > be expected to be higher in these sciences as well? > > > > I would expect the c/p ratio, the impact factor, and the immediacy > > factor to > > correlate highly as one group, but total publication, total > citations, > > library usage, expert ratings, etc., as a second group (size > > related). > > > > As you know, my preference goes in the direction of mapping local > > citation > > impact environments. These can be visualized using, for > example, the > > files > > at http://www.leydesdorff.net/jcr06 . (See: Visualization of the > > Citation > > Impact Environments of Scientific Journals: An online mapping > > exercise, > > Journal of the American Society for Information Science and > Technology > > 58(1), 25-38, 2007.) The normalization in terms of the vector space > > (cosine) > > takes care of the size effects in the relations (links), and > > size can be > > considered as an attribute of the nodes. > > > > I have no better operationalization at the moment, but I am open for > > suggestions. > > > > Best wishes, > > > > > > Loet > > > > ________________________________ > > > > Loet Leydesdorff > > Amsterdam School of Communications Research (ASCoR), > > Kloveniersburgwal 48, 1012 CX Amsterdam. > > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > > > > > -----Original Message----- > > > From: ASIS&T Special Interest Group on Metrics > > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen > J. Bensman > > > Sent: Thursday, December 20, 2007 10:37 PM > > > To: SIGMETRICS at LISTSERV.UTK.EDU > > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > I try to do some of this in the paper posted on Dr. > > > Garfield's Web site at: > > > > > > > > > > > > http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf > > > > > > > > > > > > You might want to look at the second half of the paper, where > > > I discuss > > > the Impact Factor in terms of Poisson lambdas, sampling > > > variance, random > > > error, etc. The amazing thing to me, at least, is that > > > despite all the > > > random error and sampling variance, there is a remarkable > > > stability of > > > probability across time with Spearman rhos of 0.9 and above > > with high > > > respectable correlations with Total Cites, library use, > and expert > > > ratings. Most impact factors move up and down within > > > extremely narrow > > > limits across time. I found a similar phenomenon in a paper > > > just accepted > > > by JASIST called "Distributional Differences of the Impact > > > Factor in the > > > Sciences vs. the Social Sciences: An Analysis of the > Probabilistic > > > Structure of the 2005 Journal Citation Reports." I no > > > longer own the > > > copyright and so cannot post it, but I suppose that I can let > > > you read it > > > on a private basis, if you're willing to suffer the pain of > > > reading it. > > > There is much more to the Impact Factor than meets the eye, > > > and it is an > > > extremely good measure for many purposes, if of extremely > > > doubtful use for > > > ranking purposes in the vast bulk of the cases. > > > > > > > > > > > > Stephen J. Bensman, Ph.D. > > > LSU Libraries > > > Louisiana State University > > > Baton Rouge, LA 70803 > > > USA > > > notsjb at lsu.edu > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From loet at LEYDESDORFF.NET Sun Dec 23 02:45:11 2007 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Sun, 23 Dec 2007 08:45:11 +0100 Subject: accuracy of Thomson data In-Reply-To: <4928689828488E458AECE7AFDCB52CFE019ADF@email003.lsu.edu> Message-ID: Dear Stephen, Gene, and colleagues, The data is available under the "citing journals" tab in the JCR at the Web. The data is processed from the "citing" side and the data is complete from this side. The ISI is correct that data like "J PHYS CHEM-US" cannot unambiguously be included in the calculation of the impact factor or total cites. Spell-checkers and twigging help at correcting individual citations, but this does not work in the case of these structural changes to the data. Technically, in my opinion, the ISI does an excellent job. The problem is ours. Helpfiles, of course, can be helpful. With best wishes, Loet _____ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ _____ From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Stephen J Bensman Sent: Saturday, December 22, 2007 9:26 PM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] accuracy of Thomson data Loet, As Dr. Garfield pointed out, publishers and editors will do what they will do. You cannot expect them to set policy as to what will best improve their ranking in the ISI JCRs. Therefore, it behooves Thomson Scientific to make some improvements in the JCRs and the Web of Science. >From experimenting with the problem of Total Cites a bit, these are the improvements that I can suggest. From what I can determine, the JCRs have totally disaggregated bibliographic entries. There are treated separately changes that are not alphabetically continuous, parts, etc. This is actually good, because sometimes one has to work with disaggregated data. However, for various reasons, it is necessary to aggregate the data into uniform bibliographic entities. For example, to obtain the complete total cites for JASIST, you have to aggregate cites to the complete backfiles of JASIST, JASIS, and American Documentation to obtain the complete total cites. To help this, Thomson Scientific should do the following things; 1) Explain in the JCR Help how the cites are aggregated for Total Cites. 2) Expand the list of title changes, division into parts, etc., in the JCR Help from the three-year limit geared to the Impact Factor to the complete historical list of such changes. This list has appeared annually over the years, so it is a question of compiling them. This should give the necessary title abbreviations for backfile searches in the Web of Science. 3) Make it possible to limit the citations to these title segments to one JCR Year in the Web of Science. This may be possible, but I did not figure out how to do this. 4) Explain all this in the JCR Help. If this is done, then the researcher should have complete flexibility in defining serials as bibliographic entities in the manner necessary for her/him. It will be a struggle, but it at least will be possible. If I remember correctly, the old JCRs had a lot of backfile data in them, but this seems to have disappeared in the new online ones. Stephen J. Bensman LSU Libraries Louisiana State University _____ From: ASIS&T Special Interest Group on Metrics on behalf of Loet Leydesdorff Sent: Sat 12/22/2007 2:54 AM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] accuracy of Thomson data Dear Stephen, Paradoxically, the 50,000+ yearly citations to "J Phys Chem-US" do not affect so much the Impact Factor (because of its limitation to the last two years), but it does dramatically affect Total Cites. The journal was split into different parts in 1997. (Yesterday, the ACS launched J Phys Chem-C with a focus on nano.) The lesson from this seems to me a policy advice to scientific publishers: do not change the name of the journal! The journal (and potentially the authors) will suffer in terms of visibility. Best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Stephen J Bensman > Sent: Friday, December 21, 2007 6:10 PM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Loet, > Thanks for the tip. I thought of that but that it requires > knowing all > the abbreviations used for the various parts. Then there was the > problem of defining in what year the cites were made. They have to be > limited to the JCR Year. At that point my mind boggled at the > complexity of the process, and I thought perhaps it best to restrict > oneself to what can be aggregated in the JCR and rely on the adequate > sample theory that the JCRs first used. But I did not put a lot of > time into this, because I am no longer interested in the > Impact Factor. > > Thanks for sparing me the explanation of the "vector space > models." The > only vectors I know are compass ones used for triangulation > purposes to > knock out enemy artillery and other unhealthy things. > > Stephen J. Bensman > LSU Libraries > Louisiana State University > Baton Rouge, LA 70803 > USA > notsjb at lsu.edu > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > Sent: Friday, December 21, 2007 10:31 AM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Stephen, > > As you know, I was interested in the so-called > "externally-cited impact > factor" of a journal which is not included in the set and then I > realized > that one can search on non-includied journals. In the > Web-version, it is > easy. You can just type "J PHYS CHEM-US" in the cited reference search > or if > you wish "WALL STREET J" and you get the citations. > > It seems virtually impossible for me for the ISI (or Scopus) to > attribute > the citations to "J Phys Chem-US" to either "J Phys Chem A" or "J Phys > Chem > B". The same holds true for the BBA-volumes, etc. I don't blame them, > but > one should be aware of the problem. This underestimates the citations, > but > as you know we found also 21.5% overestimation in the case of > "Angewandte > Chemie" because of people citing both editions. However, the group of > journals for which this latter effect may happen, can be delimited. > > You don't mind if I am not going to explain the vector space model. I > think > the reference is Salton & McGill (1983) and if I remember > correctly, the > explanation is rather algebraic. > > With best wishes, > > > Loet > > ________________________________ > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR), > Kloveniersburgwal 48, 1012 CX Amsterdam. > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J Bensman > > Sent: Friday, December 21, 2007 4:01 PM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Loet, > > In re to your first paragraph, if you read the paper that > is posted on > > Dr. Garfield's Web site, you will see that the probability was very > > stable across time both in terms of the Impact Factor and > Total Cites > > not at the aggregate level but within one > discipline--chemistry. This > > stability is essentially a reflection of the stability of the > > underlying > > social stratification system of chemistry. The only > consistent change > > in probability was the continuing increase in dominance of > > the journals > > at the top of both measures, indicating the success-breeds-success > > mechanism of the Matthew Effect--technically known as "contagion" in > > statistics. This is the basic reason for the stability of both the > > social stratification system and the journal system based upon it. > > > > In re your method, I must admit that generally it shoots > right by me. > > When I was young, a mathematics teacher once told me that > minds can be > > divided into two types--those that think linearly and are good in > > algebra, and those that think spatially and are good in > geometry. The > > teacher said that people very good in algebra often have > hard time in > > geometry. I was extremely good in algebra but had a hard time in > > geometry due to difficulty in grasping spatial relationships. > > It seems > > that computer programmers have to be able to think > spatially as well, > > and I have a hard time understanding this. > > > > However, your most important recent discovery--in my opinion--was in > > your recent "Caveats" paper, where you prove that JCRs do not > > aggregate > > Total Cites across title changes, splits, etc. In other > > words, much of > > the backfile is left out of the count. From my historical > > perspective, > > this is a most serious flaw. You also have to understand > that I am a > > catalog librarian and define serial bibliographic entities > in terms of > > volume count--if the volume sequence is consistent, it is > > still the same > > journal despite the title change. I investigated the > problem briefly > > and found that I could not aggregate more than three years. I would > > like to know how you did that. For me it means that for > > Total Cites to > > be good, Total Cites across 3 years have to be highly > correlated with > > Total Cites across the entire backfile. An initial view was > > that such a > > short backfile was a sufficient sample. If this is so, > then the Total > > Cites measure is good. > > > > Stephen J. Bensman > > LSU Libraries > > Louisiana State University > > Baton Rouge, LA 70803 > > USA > > notsjb at lsu.edu > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > > Sent: Friday, December 21, 2007 1:05 AM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Dear Stephen and colleagues, > > > > These (Spearman) correlations teach us, in my opinion, that > > the measures > > covary across disciplines at the aggregate level. Since > impact factors > > are > > higher in the biomedical sciences, library usages and expert ratings > > would > > be expected to be higher in these sciences as well? > > > > I would expect the c/p ratio, the impact factor, and the immediacy > > factor to > > correlate highly as one group, but total publication, total > citations, > > library usage, expert ratings, etc., as a second group (size > > related). > > > > As you know, my preference goes in the direction of mapping local > > citation > > impact environments. These can be visualized using, for > example, the > > files > > at http://www.leydesdorff.net/jcr06 . (See: Visualization of the > > Citation > > Impact Environments of Scientific Journals: An online mapping > > exercise, > > Journal of the American Society for Information Science and > Technology > > 58(1), 25-38, 2007.) The normalization in terms of the vector space > > (cosine) > > takes care of the size effects in the relations (links), and > > size can be > > considered as an attribute of the nodes. > > > > I have no better operationalization at the moment, but I am open for > > suggestions. > > > > Best wishes, > > > > > > Loet > > > > ________________________________ > > > > Loet Leydesdorff > > Amsterdam School of Communications Research (ASCoR), > > Kloveniersburgwal 48, 1012 CX Amsterdam. > > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > > > > > -----Original Message----- > > > From: ASIS&T Special Interest Group on Metrics > > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen > J. Bensman > > > Sent: Thursday, December 20, 2007 10:37 PM > > > To: SIGMETRICS at LISTSERV.UTK.EDU > > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > I try to do some of this in the paper posted on Dr. > > > Garfield's Web site at: > > > > > > > > > > > > http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf > > > > > > > > > > > > You might want to look at the second half of the paper, where > > > I discuss > > > the Impact Factor in terms of Poisson lambdas, sampling > > > variance, random > > > error, etc. The amazing thing to me, at least, is that > > > despite all the > > > random error and sampling variance, there is a remarkable > > > stability of > > > probability across time with Spearman rhos of 0.9 and above > > with high > > > respectable correlations with Total Cites, library use, > and expert > > > ratings. Most impact factors move up and down within > > > extremely narrow > > > limits across time. I found a similar phenomenon in a paper > > > just accepted > > > by JASIST called "Distributional Differences of the Impact > > > Factor in the > > > Sciences vs. the Social Sciences: An Analysis of the > Probabilistic > > > Structure of the 2005 Journal Citation Reports." I no > > > longer own the > > > copyright and so cannot post it, but I suppose that I can let > > > you read it > > > on a private basis, if you're willing to suffer the pain of > > > reading it. > > > There is much more to the Impact Factor than meets the eye, > > > and it is an > > > extremely good measure for many purposes, if of extremely > > > doubtful use for > > > ranking purposes in the vast bulk of the cases. > > > > > > > > > > > > Stephen J. Bensman, Ph.D. > > > LSU Libraries > > > Louisiana State University > > > Baton Rouge, LA 70803 > > > USA > > > notsjb at lsu.edu > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From notsjb at LSU.EDU Sun Dec 23 11:14:32 2007 From: notsjb at LSU.EDU (Stephen J Bensman) Date: Sun, 23 Dec 2007 10:14:32 -0600 Subject: accuracy of Thomson data Message-ID: Loet et al, The more and more I look at the problem of backfiles, the more I opt for using the numerator of the Impact Factor as the Total Cites measure. It is the method originally used by Martyn and Gilchrist, who pioneered the formulation of the Impact Factor, and it postulates that two years is an adquate sample to measure journal importance. However, while it is the easiest to do, it is only a measure of current importance, and you lose a lot of historical perspective, for one measure of the importance of a journal is whether the articles published 50 years ago are still being cited today. However, given contagion and the cumulative advantage of the Matthew Effect, the correlations of the two-year backfile with the entire backfile should be quite high, and you save yourself a lot of misery of tracing and aggregating backfiles. To do the latter, you really have to be an expert serials cataloger with a knowledge of AACR2 rules and the MARC coding used in the OCLC cataloging mode. That is too much to expect of most information scientists. Stephen J. Bensman LSU Libraries Louisiana State University ________________________________ From: ASIS&T Special Interest Group on Metrics on behalf of Loet Leydesdorff Sent: Sun 12/23/2007 1:45 AM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] accuracy of Thomson data Dear Stephen, Gene, and colleagues, The data is available under the "citing journals" tab in the JCR at the Web. The data is processed from the "citing" side and the data is complete from this side. The ISI is correct that data like "J PHYS CHEM-US" cannot unambiguously be included in the calculation of the impact factor or total cites. Spell-checkers and twigging help at correcting individual citations, but this does not work in the case of these structural changes to the data. Technically, in my opinion, the ISI does an excellent job. The problem is ours. Helpfiles, of course, can be helpful. With best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ ________________________________ From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Stephen J Bensman Sent: Saturday, December 22, 2007 9:26 PM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] accuracy of Thomson data Adminstrative info for SIGMETRICS (for example unsubscribe): http://web.utk.edu/~gwhitney/sigmetrics.html Loet, As Dr. Garfield pointed out, publishers and editors will do what they will do. You cannot expect them to set policy as to what will best improve their ranking in the ISI JCRs. Therefore, it behooves Thomson Scientific to make some improvements in the JCRs and the Web of Science. From experimenting with the problem of Total Cites a bit, these are the improvements that I can suggest. From what I can determine, the JCRs have totally disaggregated bibliographic entries. There are treated separately changes that are not alphabetically continuous, parts, etc. This is actually good, because sometimes one has to work with disaggregated data. However, for various reasons, it is necessary to aggregate the data into uniform bibliographic entities. For example, to obtain the complete total cites for JASIST, you have to aggregate cites to the complete backfiles of JASIST, JASIS, and American Documentation to obtain the complete total cites. To help this, Thomson Scientific should do the following things; 1) Explain in the JCR Help how the cites are aggregated for Total Cites. 2) Expand the list of title changes, division into parts, etc., in the JCR Help from the three-year limit geared to the Impact Factor to the complete historical list of such changes. This list has appeared annually over the years, so it is a question of compiling them. This should give the necessary title abbreviations for backfile searches in the Web of Science. 3) Make it possible to limit the citations to these title segments to one JCR Year in the Web of Science. This may be possible, but I did not figure out how to do this. 4) Explain all this in the JCR Help. If this is done, then the researcher should have complete flexibility in defining serials as bibliographic entities in the manner necessary for her/him. It will be a struggle, but it at least will be possible. If I remember correctly, the old JCRs had a lot of backfile data in them, but this seems to have disappeared in the new online ones. Stephen J. Bensman LSU Libraries Louisiana State University ________________________________ From: ASIS&T Special Interest Group on Metrics on behalf of Loet Leydesdorff Sent: Sat 12/22/2007 2:54 AM To: SIGMETRICS at listserv.utk.edu Subject: Re: [SIGMETRICS] accuracy of Thomson data Adminstrative info for SIGMETRICS (for example unsubscribe): http://web.utk.edu/~gwhitney/sigmetrics.html Dear Stephen, Paradoxically, the 50,000+ yearly citations to "J Phys Chem-US" do not affect so much the Impact Factor (because of its limitation to the last two years), but it does dramatically affect Total Cites. The journal was split into different parts in 1997. (Yesterday, the ACS launched J Phys Chem-C with a focus on nano.) The lesson from this seems to me a policy advice to scientific publishers: do not change the name of the journal! The journal (and potentially the authors) will suffer in terms of visibility. Best wishes, Loet ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 loet at leydesdorff.net ; http://www.leydesdorff.net/ > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Stephen J Bensman > Sent: Friday, December 21, 2007 6:10 PM > To: SIGMETRICS at listserv.utk.edu > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Loet, > Thanks for the tip. I thought of that but that it requires > knowing all > the abbreviations used for the various parts. Then there was the > problem of defining in what year the cites were made. They have to be > limited to the JCR Year. At that point my mind boggled at the > complexity of the process, and I thought perhaps it best to restrict > oneself to what can be aggregated in the JCR and rely on the adequate > sample theory that the JCRs first used. But I did not put a lot of > time into this, because I am no longer interested in the > Impact Factor. > > Thanks for sparing me the explanation of the "vector space > models." The > only vectors I know are compass ones used for triangulation > purposes to > knock out enemy artillery and other unhealthy things. > > Stephen J. Bensman > LSU Libraries > Louisiana State University > Baton Rouge, LA 70803 > USA > notsjb at lsu.edu > > -----Original Message----- > From: ASIS&T Special Interest Group on Metrics > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > Sent: Friday, December 21, 2007 10:31 AM > To: SIGMETRICS at LISTSERV.UTK.EDU > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > Adminstrative info for SIGMETRICS (for example unsubscribe): > http://web.utk.edu/~gwhitney/sigmetrics.html > > Dear Stephen, > > As you know, I was interested in the so-called > "externally-cited impact > factor" of a journal which is not included in the set and then I > realized > that one can search on non-includied journals. In the > Web-version, it is > easy. You can just type "J PHYS CHEM-US" in the cited reference search > or if > you wish "WALL STREET J" and you get the citations. > > It seems virtually impossible for me for the ISI (or Scopus) to > attribute > the citations to "J Phys Chem-US" to either "J Phys Chem A" or "J Phys > Chem > B". The same holds true for the BBA-volumes, etc. I don't blame them, > but > one should be aware of the problem. This underestimates the citations, > but > as you know we found also 21.5% overestimation in the case of > "Angewandte > Chemie" because of people citing both editions. However, the group of > journals for which this latter effect may happen, can be delimited. > > You don't mind if I am not going to explain the vector space model. I > think > the reference is Salton & McGill (1983) and if I remember > correctly, the > explanation is rather algebraic. > > With best wishes, > > > Loet > > ________________________________ > > Loet Leydesdorff > Amsterdam School of Communications Research (ASCoR), > Kloveniersburgwal 48, 1012 CX Amsterdam. > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen J Bensman > > Sent: Friday, December 21, 2007 4:01 PM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Loet, > > In re to your first paragraph, if you read the paper that > is posted on > > Dr. Garfield's Web site, you will see that the probability was very > > stable across time both in terms of the Impact Factor and > Total Cites > > not at the aggregate level but within one > discipline--chemistry. This > > stability is essentially a reflection of the stability of the > > underlying > > social stratification system of chemistry. The only > consistent change > > in probability was the continuing increase in dominance of > > the journals > > at the top of both measures, indicating the success-breeds-success > > mechanism of the Matthew Effect--technically known as "contagion" in > > statistics. This is the basic reason for the stability of both the > > social stratification system and the journal system based upon it. > > > > In re your method, I must admit that generally it shoots > right by me. > > When I was young, a mathematics teacher once told me that > minds can be > > divided into two types--those that think linearly and are good in > > algebra, and those that think spatially and are good in > geometry. The > > teacher said that people very good in algebra often have > hard time in > > geometry. I was extremely good in algebra but had a hard time in > > geometry due to difficulty in grasping spatial relationships. > > It seems > > that computer programmers have to be able to think > spatially as well, > > and I have a hard time understanding this. > > > > However, your most important recent discovery--in my opinion--was in > > your recent "Caveats" paper, where you prove that JCRs do not > > aggregate > > Total Cites across title changes, splits, etc. In other > > words, much of > > the backfile is left out of the count. From my historical > > perspective, > > this is a most serious flaw. You also have to understand > that I am a > > catalog librarian and define serial bibliographic entities > in terms of > > volume count--if the volume sequence is consistent, it is > > still the same > > journal despite the title change. I investigated the > problem briefly > > and found that I could not aggregate more than three years. I would > > like to know how you did that. For me it means that for > > Total Cites to > > be good, Total Cites across 3 years have to be highly > correlated with > > Total Cites across the entire backfile. An initial view was > > that such a > > short backfile was a sufficient sample. If this is so, > then the Total > > Cites measure is good. > > > > Stephen J. Bensman > > LSU Libraries > > Louisiana State University > > Baton Rouge, LA 70803 > > USA > > notsjb at lsu.edu > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Loet Leydesdorff > > Sent: Friday, December 21, 2007 1:05 AM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Dear Stephen and colleagues, > > > > These (Spearman) correlations teach us, in my opinion, that > > the measures > > covary across disciplines at the aggregate level. Since > impact factors > > are > > higher in the biomedical sciences, library usages and expert ratings > > would > > be expected to be higher in these sciences as well? > > > > I would expect the c/p ratio, the impact factor, and the immediacy > > factor to > > correlate highly as one group, but total publication, total > citations, > > library usage, expert ratings, etc., as a second group (size > > related). > > > > As you know, my preference goes in the direction of mapping local > > citation > > impact environments. These can be visualized using, for > example, the > > files > > at http://www.leydesdorff.net/jcr06 . (See: Visualization of the > > Citation > > Impact Environments of Scientific Journals: An online mapping > > exercise, > > Journal of the American Society for Information Science and > Technology > > 58(1), 25-38, 2007.) The normalization in terms of the vector space > > (cosine) > > takes care of the size effects in the relations (links), and > > size can be > > considered as an attribute of the nodes. > > > > I have no better operationalization at the moment, but I am open for > > suggestions. > > > > Best wishes, > > > > > > Loet > > > > ________________________________ > > > > Loet Leydesdorff > > Amsterdam School of Communications Research (ASCoR), > > Kloveniersburgwal 48, 1012 CX Amsterdam. > > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > > loet at leydesdorff.net ; http://www.leydesdorff.net/ > > > > > > > > > -----Original Message----- > > > From: ASIS&T Special Interest Group on Metrics > > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Stephen > J. Bensman > > > Sent: Thursday, December 20, 2007 10:37 PM > > > To: SIGMETRICS at LISTSERV.UTK.EDU > > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > I try to do some of this in the paper posted on Dr. > > > Garfield's Web site at: > > > > > > > > > > > > http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf > > > > > > > > > > > > You might want to look at the second half of the paper, where > > > I discuss > > > the Impact Factor in terms of Poisson lambdas, sampling > > > variance, random > > > error, etc. The amazing thing to me, at least, is that > > > despite all the > > > random error and sampling variance, there is a remarkable > > > stability of > > > probability across time with Spearman rhos of 0.9 and above > > with high > > > respectable correlations with Total Cites, library use, > and expert > > > ratings. Most impact factors move up and down within > > > extremely narrow > > > limits across time. I found a similar phenomenon in a paper > > > just accepted > > > by JASIST called "Distributional Differences of the Impact > > > Factor in the > > > Sciences vs. the Social Sciences: An Analysis of the > Probabilistic > > > Structure of the 2005 Journal Citation Reports." I no > > > longer own the > > > copyright and so cannot post it, but I suppose that I can let > > > you read it > > > on a private basis, if you're willing to suffer the pain of > > > reading it. > > > There is much more to the Impact Factor than meets the eye, > > > and it is an > > > extremely good measure for many purposes, if of extremely > > > doubtful use for > > > ranking purposes in the vast bulk of the cases. > > > > > > > > > > > > Stephen J. Bensman, Ph.D. > > > LSU Libraries > > > Louisiana State University > > > Baton Rouge, LA 70803 > > > USA > > > notsjb at lsu.edu > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From loet at LEYDESDORFF.NET Wed Dec 26 03:22:38 2007 From: loet at LEYDESDORFF.NET (Loet Leydesdorff) Date: Wed, 26 Dec 2007 09:22:38 +0100 Subject: The development of scholarly communication about Nanotechnology, 1996-2006 Message-ID: Dear colleagues, See the animation at http://www.leydesdorff.net/journals/nanotech/index.htm . The file contains some further explanation. The specialty emerged as a set of journals citing one another in the period 2000-2003. Best wishes for a Happy Newyear, Loet _____ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR) Kloveniersburgwal 48, 1012 CX Amsterdam loet at leydesdorff.net ; http://www.leydesdorff.net/ Visiting Professor, ISTIC, Beijing; Honorary Fellow SPRU, University of Sussex Now available: The Knowledge-Based Economy: Modeled, Measured, Simulated, 385 pp.; US$ 18.95; The Self-Organization of the Knowledge-Based Society ; The Challenge of Scientometrics -------------- next part -------------- An HTML attachment was scrubbed... URL: From enrique.wulff at ICMAN.CSIC.ES Wed Dec 26 04:02:46 2007 From: enrique.wulff at ICMAN.CSIC.ES (Enrique Wulff) Date: Wed, 26 Dec 2007 10:02:46 +0100 Subject: accuracy of Thomson data In-Reply-To: <4928689828488E458AECE7AFDCB52CFE019AE0@email003.lsu.edu> Message-ID: Dear Friends, sometimes the referred accuracy could include such data as available in the 'abstract' field of the article: Clinical policy: Critical issues in the evaluation and management of adult patients presenting to the emergency department with acute heart failure syndromes. Simply an editorial statement. Enrique Wulff Marine Sciences Institute of Andalusia (CSIC) At 17:14 23/12/2007, you wrote: >Adminstrative info for SIGMETRICS (for example unsubscribe): >http://web.utk.edu/~gwhitney/sigmetrics.html >Loet et al, >The more and more I look at the problem of backfiles, the more I opt >for using the numerator of the Impact Factor as the Total Cites >measure. It is the method originally used by Martyn and Gilchrist, >who pioneered the formulation of the Impact Factor, and it >postulates that two years is an adquate sample to measure journal >importance. However, while it is the easiest to do, it is only a >measure of current importance, and you lose a lot of historical >perspective, for one measure of the importance of a journal is >whether the articles published 50 years ago are still being cited >today. However, given contagion and the cumulative advantage of the >Matthew Effect, the correlations of the two-year backfile with the >entire backfile should be quite high, and you save yourself a lot of >misery of tracing and aggregating backfiles. To do the latter, you >really have to be an expert serials cataloger with a knowledge of >AACR2 rules and the MARC coding used in the OCLC cataloging >mode. That is too much to expect of most information scientists. > >Stephen J. Bensman >LSU Libraries >Louisiana State University > > > >---------- >From: ASIS&T Special Interest Group on Metrics on behalf of Loet Leydesdorff >Sent: Sun 12/23/2007 1:45 AM >To: SIGMETRICS at listserv.utk.edu >Subject: Re: [SIGMETRICS] accuracy of Thomson data > >Adminstrative info for SIGMETRICS (for example unsubscribe): >http://web.utk.edu/~gwhitney/sigmetrics.html >Dear Stephen, Gene, and colleagues, > >The data is available under the "citing journals" tab in the JCR at >the Web. The data is processed from the "citing" side and the data >is complete from this side. > >The ISI is correct that data like "J PHYS CHEM-US" cannot >unambiguously be included in the calculation of the impact factor or >total cites. Spell-checkers and twigging help at correcting >individual citations, but this does not work in the case of these >structural changes to the data. > >Technically, in my opinion, the ISI does an excellent job. The >problem is ours. Helpfiles, of course, can be helpful. > >With best wishes, > > >Loet > > >---------- >Loet Leydesdorff >Amsterdam School of Communications Research (ASCoR), >Kloveniersburgwal 48, 1012 CX Amsterdam. >Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 >loet at leydesdorff.net ; >http://www.leydesdorff.net/ > > > >---------- >From: ASIS&T Special Interest Group on Metrics >[mailto:SIGMETRICS at listserv.utk.edu] On Behalf Of Stephen J Bensman >Sent: Saturday, December 22, 2007 9:26 PM >To: SIGMETRICS at listserv.utk.edu >Subject: Re: [SIGMETRICS] accuracy of Thomson data > >Adminstrative info for SIGMETRICS (for example unsubscribe): >http://web.utk.edu/~gwhitney/sigmetrics.html >Loet, >As Dr. Garfield pointed out, publishers and editors will do what >they will do. You cannot expect them to set policy as to what will >best improve their ranking in the ISI JCRs. Therefore, it behooves >Thomson Scientific to make some improvements in the JCRs and the Web >of Science. > > From experimenting with the problem of Total Cites a bit, these are > the improvements that I can suggest. From what I can determine, > the JCRs have totally disaggregated bibliographic entries. There > are treated separately changes that are not alphabetically > continuous, parts, etc. This is actually good, because sometimes > one has to work with disaggregated data. However, for various > reasons, it is necessary to aggregate the data into uniform > bibliographic entities. For example, to obtain the complete total > cites for JASIST, you have to aggregate cites to the complete > backfiles of JASIST, JASIS, and American Documentation to obtain > the complete total cites. To help this, Thomson Scientific should > do the following things; > >1) Explain in the JCR Help how the cites are aggregated for Total Cites. >2) Expand the list of title changes, division into parts, etc., in >the JCR Help from the three-year limit geared to the Impact Factor >to the complete historical list of such changes. This list has >appeared annually over the years, so it is a question of compiling >them. This should give the necessary title abbreviations for >backfile searches in the Web of Science. >3) Make it possible to limit the citations to these title segments >to one JCR Year in the Web of Science. This may be possible, but I >did not figure out how to do this. >4) Explain all this in the JCR Help. > >If this is done, then the researcher should have complete >flexibility in defining serials as bibliographic entities in the >manner necessary for her/him. It will be a struggle, but it at >least will be possible. If I remember correctly, the old JCRs had a >lot of backfile data in them, but this seems to have disappeared in >the new online ones. > >Stephen J. Bensman >LSU Libraries >Louisiana State University > > >---------- >From: ASIS&T Special Interest Group on Metrics on behalf of Loet Leydesdorff >Sent: Sat 12/22/2007 2:54 AM >To: SIGMETRICS at listserv.utk.edu >Subject: Re: [SIGMETRICS] accuracy of Thomson data > >Adminstrative info for SIGMETRICS (for example unsubscribe): >http://web.utk.edu/~gwhitney/sigmetrics.html > >Dear Stephen, > >Paradoxically, the 50,000+ yearly citations to "J Phys Chem-US" do not >affect so much the Impact Factor (because of its limitation to the last two >years), but it does dramatically affect Total Cites. The journal was split >into different parts in 1997. (Yesterday, the ACS launched J Phys Chem-C >with a focus on nano.) > >The lesson from this seems to me a policy advice to scientific publishers: >do not change the name of the journal! The journal (and potentially the >authors) will suffer in terms of visibility. > >Best wishes, > > >Loet > >________________________________ > >Loet Leydesdorff >Amsterdam School of Communications Research (ASCoR), >Kloveniersburgwal 48, 1012 CX Amsterdam. >Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 >loet at leydesdorff.net ; >http://www.leydesdorff.net/ > > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > > [mailto:SIGMETRICS at listserv.utk.edu] > On Behalf Of Stephen J Bensman > > Sent: Friday, December 21, 2007 6:10 PM > > To: SIGMETRICS at listserv.utk.edu > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Loet, > > Thanks for the tip. I thought of that but that it requires > > knowing all > > the abbreviations used for the various parts. Then there was the > > problem of defining in what year the cites were made. They have to be > > limited to the JCR Year. At that point my mind boggled at the > > complexity of the process, and I thought perhaps it best to restrict > > oneself to what can be aggregated in the JCR and rely on the adequate > > sample theory that the JCRs first used. But I did not put a lot of > > time into this, because I am no longer interested in the > > Impact Factor. > > > > Thanks for sparing me the explanation of the "vector space > > models." The > > only vectors I know are compass ones used for triangulation > > purposes to > > knock out enemy artillery and other unhealthy things. > > > > Stephen J. Bensman > > LSU Libraries > > Louisiana State University > > Baton Rouge, LA 70803 > > USA > > notsjb at lsu.edu > > > > -----Original Message----- > > From: ASIS&T Special Interest Group on Metrics > > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] > On Behalf Of Loet Leydesdorff > > Sent: Friday, December 21, 2007 10:31 AM > > To: SIGMETRICS at LISTSERV.UTK.EDU > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > Dear Stephen, > > > > As you know, I was interested in the so-called > > "externally-cited impact > > factor" of a journal which is not included in the set and then I > > realized > > that one can search on non-includied journals. In the > > Web-version, it is > > easy. You can just type "J PHYS CHEM-US" in the cited reference search > > or if > > you wish "WALL STREET J" and you get the citations. > > > > It seems virtually impossible for me for the ISI (or Scopus) to > > attribute > > the citations to "J Phys Chem-US" to either "J Phys Chem A" or "J Phys > > Chem > > B". The same holds true for the BBA-volumes, etc. I don't blame them, > > but > > one should be aware of the problem. This underestimates the citations, > > but > > as you know we found also 21.5% overestimation in the case of > > "Angewandte > > Chemie" because of people citing both editions. However, the group of > > journals for which this latter effect may happen, can be delimited. > > > > You don't mind if I am not going to explain the vector space model. I > > think > > the reference is Salton & McGill (1983) and if I remember > > correctly, the > > explanation is rather algebraic. > > > > With best wishes, > > > > > > Loet > > > > ________________________________ > > > > Loet Leydesdorff > > Amsterdam School of Communications Research (ASCoR), > > Kloveniersburgwal 48, 1012 CX Amsterdam. > > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > > loet at leydesdorff.net ; > http://www.leydesdorff.net/ > > > > > > > > > -----Original Message----- > > > From: ASIS&T Special Interest Group on Metrics > > > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] > On Behalf Of Stephen J Bensman > > > Sent: Friday, December 21, 2007 4:01 PM > > > To: SIGMETRICS at LISTSERV.UTK.EDU > > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > Loet, > > > In re to your first paragraph, if you read the paper that > > is posted on > > > Dr. Garfield's Web site, you will see that the probability was very > > > stable across time both in terms of the Impact Factor and > > Total Cites > > > not at the aggregate level but within one > > discipline--chemistry. This > > > stability is essentially a reflection of the stability of the > > > underlying > > > social stratification system of chemistry. The only > > consistent change > > > in probability was the continuing increase in dominance of > > > the journals > > > at the top of both measures, indicating the success-breeds-success > > > mechanism of the Matthew Effect--technically known as "contagion" in > > > statistics. This is the basic reason for the stability of both the > > > social stratification system and the journal system based upon it. > > > > > > In re your method, I must admit that generally it shoots > > right by me. > > > When I was young, a mathematics teacher once told me that > > minds can be > > > divided into two types--those that think linearly and are good in > > > algebra, and those that think spatially and are good in > > geometry. The > > > teacher said that people very good in algebra often have > > hard time in > > > geometry. I was extremely good in algebra but had a hard time in > > > geometry due to difficulty in grasping spatial relationships. > > > It seems > > > that computer programmers have to be able to think > > spatially as well, > > > and I have a hard time understanding this. > > > > > > However, your most important recent discovery--in my opinion--was in > > > your recent "Caveats" paper, where you prove that JCRs do not > > > aggregate > > > Total Cites across title changes, splits, etc. In other > > > words, much of > > > the backfile is left out of the count. From my historical > > > perspective, > > > this is a most serious flaw. You also have to understand > > that I am a > > > catalog librarian and define serial bibliographic entities > > in terms of > > > volume count--if the volume sequence is consistent, it is > > > still the same > > > journal despite the title change. I investigated the > > problem briefly > > > and found that I could not aggregate more than three years. I would > > > like to know how you did that. For me it means that for > > > Total Cites to > > > be good, Total Cites across 3 years have to be highly > > correlated with > > > Total Cites across the entire backfile. An initial view was > > > that such a > > > short backfile was a sufficient sample. If this is so, > > then the Total > > > Cites measure is good. > > > > > > Stephen J. Bensman > > > LSU Libraries > > > Louisiana State University > > > Baton Rouge, LA 70803 > > > USA > > > notsjb at lsu.edu > > > > > > -----Original Message----- > > > From: ASIS&T Special Interest Group on Metrics > > > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] > On Behalf Of Loet Leydesdorff > > > Sent: Friday, December 21, 2007 1:05 AM > > > To: SIGMETRICS at LISTSERV.UTK.EDU > > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > Dear Stephen and colleagues, > > > > > > These (Spearman) correlations teach us, in my opinion, that > > > the measures > > > covary across disciplines at the aggregate level. Since > > impact factors > > > are > > > higher in the biomedical sciences, library usages and expert ratings > > > would > > > be expected to be higher in these sciences as well? > > > > > > I would expect the c/p ratio, the impact factor, and the immediacy > > > factor to > > > correlate highly as one group, but total publication, total > > citations, > > > library usage, expert ratings, etc., as a second group (size > > > related). > > > > > > As you know, my preference goes in the direction of mapping local > > > citation > > > impact environments. These can be visualized using, for > > example, the > > > files > > > at > http://www.leydesdorff.net/jcr06 > . (See: Visualization of the > > > Citation > > > Impact Environments of Scientific Journals: An online mapping > > > exercise, > > > Journal of the American Society for Information Science and > > Technology > > > 58(1), 25-38, 2007.) The normalization in terms of the vector space > > > (cosine) > > > takes care of the size effects in the relations (links), and > > > size can be > > > considered as an attribute of the nodes. > > > > > > I have no better operationalization at the moment, but I am open for > > > suggestions. > > > > > > Best wishes, > > > > > > > > > Loet > > > > > > ________________________________ > > > > > > Loet Leydesdorff > > > Amsterdam School of Communications Research (ASCoR), > > > Kloveniersburgwal 48, 1012 CX Amsterdam. > > > Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 > > > loet at leydesdorff.net ; > http://www.leydesdorff.net/ > > > > > > > > > > > > > -----Original Message----- > > > > From: ASIS&T Special Interest Group on Metrics > > > > > [mailto:SIGMETRICS at LISTSERV.UTK.EDU] > On Behalf Of Stephen > > J. Bensman > > > > Sent: Thursday, December 20, 2007 10:37 PM > > > > To: SIGMETRICS at LISTSERV.UTK.EDU > > > > Subject: Re: [SIGMETRICS] accuracy of Thomson data > > > > > > > > Adminstrative info for SIGMETRICS (for example unsubscribe): > > > > > http://web.utk.edu/~gwhitney/sigmetrics.html > > > > > > > > I try to do some of this in the paper posted on Dr. > > > > Garfield's Web site at: > > > > > > > > > > > > > > > > > http://garfield.library.upenn.edu/bensman/bensmanegif22007.pdf > > > > > > > > > > > > > > > > You might want to look at the second half of the paper, where > > > > I discuss > > > > the Impact Factor in terms of Poisson lambdas, sampling > > > > variance, random > > > > error, etc. The amazing thing to me, at least, is that > > > > despite all the > > > > random error and sampling variance, there is a remarkable > > > > stability of > > > > probability across time with Spearman rhos of 0.9 and above > > > with high > > > > respectable correlations with Total Cites, library use, > > and expert > > > > ratings. Most impact factors move up and down within > > > > extremely narrow > > > > limits across time. I found a similar phenomenon in a paper > > > > just accepted > > > > by JASIST called "Distributional Differences of the Impact > > > > Factor in the > > > > Sciences vs. the Social Sciences: An Analysis of the > > Probabilistic > > > > Structure of the 2005 Journal Citation Reports." I no > > > > longer own the > > > > copyright and so cannot post it, but I suppose that I can let > > > > you read it > > > > on a private basis, if you're willing to suffer the pain of > > > > reading it. > > > > There is much more to the Impact Factor than meets the eye, > > > > and it is an > > > > extremely good measure for many purposes, if of extremely > > > > doubtful use for > > > > ranking purposes in the vast bulk of the cases. > > > > > > > > > > > > > > > > Stephen J. Bensman, Ph.D. > > > > LSU Libraries > > > > Louisiana State University > > > > Baton Rouge, LA 70803 > > > > USA > > > > notsjb at lsu.edu > > > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From harnad at ECS.SOTON.AC.UK Mon Dec 31 18:49:14 2007 From: harnad at ECS.SOTON.AC.UK (Stevan Harnad) Date: Mon, 31 Dec 2007 23:49:14 +0000 Subject: UUK Workwhop on Open Access Mandates and Metrics: PPTs now online Message-ID: ** Cross-Posted ** Universities UK Research Events Research Information and Management Workshop - 5 December 2007 http://www.universitiesuk.ac.uk/research/ * Opening Session: EurOpenScholar by Professor Bernard Rentier, Rector, University of Liege http://www.universitiesuk.ac.uk/research/downloads%5CResearchInformationandManagementWorkshop%5CProfessorBernardRentier.ppt * The whole picture: the overall scholarly information landscape by Dr Alma Swan, Director, Key Perspectives Ltd http://www.universitiesuk.ac.uk/research/downloads%5CResearchInformationandManagementWorkshop%5CDrAlmaSwan.ppt * Mandates and Metrics:How Open Repositories Enable Universities to Manage, Measure and Maximise their Research Assets by Professor Stevan Harnad, University of Southampton http://eprints.ecs.soton.ac.uk/14990/ * Optimising research management and assessment processes; the role of funders by Professor David Eastwood, Chief Executive, HEFCE http://www.universitiesuk.ac.uk/research/downloads%5CResearchInformationandManagementWorkshop%5CProfessorDavidEastwood.ppt * Overview: outline of the evolution of scholarly information, what advantages new changes will bring and economic impact for the UK by Dr. Michael Jubb, Director, Research Information Network http://www.rin.ac.uk/node/345 http://www.universitiesuk.ac.uk/research/downloads%5CResearchInformationandManagementWorkshop%5CDrMichaelJubb.pps