papers relevant to Sig Metrics
Eugene Garfield
eugene.garfield at THOMSONREUTERS.COM
Wed Apr 18 18:16:24 EDT 2012
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TITLE: Using Structural Information and Citation Evidence to
Detect Significant Plagiarism Cases in Scientific Publications (Article,
English)
AUTHOR: Alzahrani, S; Palade, V; Salim, N; Abraham, A
SOURCE: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE
AND TECHNOLOGY 63 (2). FEB 2012. p.286-312
WILEY-BLACKWELL, MALDEN
SEARCH TERM(S): CITATION item_title; CITATION* item_title
KEYWORDS+: DOCUMENT STRUCTURE; DIGITAL LIBRARIES; SEARCH
ABSTRACT: In plagiarism detection (PD) systems, two important
problems should be considered: the problem of retrieving candidate documents that are globally similar to a document q under investigation, and the problem of side-by-side comparison of q and its candidates to pinpoint plagiarized fragments in detail. In this article, the authors investigate the usage of structural information of scientific publications in both problems, and the consideration of citation evidence in the second problem. Three statistical measures namely Inverse Generic Class Frequency, Spread, and Depth are introduced to assign a degree of importance (i.e., weight) to structural components in scientific articles. A term-weighting scheme is adjusted to incorporate component- weight factors, which is used to improve the retrieval of potential sources of plagiarism. A plagiarism screening process is applied based on a measure of resemblance, in which component-weight factors are exploited to ignore less or nonsignificant plagiarism cases. Using the notion of citation evidence, parts with proper citation evidence are excluded, and remaining cases are suspected and used to calculate the similarity index.
The authors compare their approach to two flat-based baselines, TF-IDF weighting with a Cosine coefficient, and shingling with a Jaccard coefficient. In both baselines, they use different comparison units with overlapping measures for plagiarism screening. They conducted extensive experiments using a dataset of 15,412 documents divided into 8,657 source publications and 6,755 suspicious queries, which included 18,147 plagiarism cases inserted automatically. Component-weight factors are assessed using precision, recall, and F-measure averaged over a 10-fold cross-validation and compared using the ANOVA statistical test. Results from structural-based candidate retrieval and plagiarism detection are evaluated statistically against the flat baselines using paired-t tests on 10-fold cross-validation runs, which demonstrate the efficacy achieved by the proposed framework. An empirical study on the system's response shows that structural information, unlike existing plagiarism detectors, helps to flag significant plagiarism cases, improve the similarity index, and provide human-like plagiarism screening results.
AUTHOR ADDRESS: S Alzahrani, Taif Univ, Dept Comp Sci, At Taif, Saudi Arabia
[ ]<-- Enter an X to order article (IDS: 917FM 00007) ISSN: 1532-2882
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TITLE: Mapping World Scientific Collaboration: Authors,
Institutions, and Countries (Article, English)
AUTHOR: Gazni, A; Sugimoto, CR; Didegah, F
SOURCE: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE
AND TECHNOLOGY 63 (2). FEB 2012. p.323-335
WILEY-BLACKWELL, MALDEN
SEARCH TERM(S): PRICE DJD rauth
KEYWORDS+: INTERNATIONAL COLLABORATION; CO-AUTHORSHIP; SCIENCES;
COOPERATION; NETWORKS; PATTERNS; CITATION; PUBLICATIONS;
COAUTHORSHIP; PERIPHERY
ABSTRACT: International collaboration is being heralded as the
hallmark of contemporary scientific production. Yet little quantitative evidence has portrayed the landscape and trends of such collaboration. To this end, 14,000,000 documents indexed in Thomson Reuters's Web of Science (WoS) were studied to provide a state-of-the-art description of scientific collaborations across the world. The results indicate that the number of authors in the largest research teams have not significantly grown during the past decade; however, the number of smaller research teams has seen significant increases in growth. In terms of composition, the largest teams have become more diverse than the latter teams and tend more toward interinstitutional and international collaboration.
Investigating the size of teams showed large variation between fields.
Mapping scientific cooperation at the country level reveals that Western countries situated at the core of the map are extensively cooperating with each other. High-impact institutions are significantly more collaborative than others. This work should inform policy makers, administrators, and those interested in the progression of scientific collaboration.
AUTHOR ADDRESS: A Gazni, Islamic World Sci Citat Ctr ISC, Shiraz, Iran
[ ]<-- Enter an X to order article (IDS: 917FM 00009) ISSN: 1532-2882
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TITLE: The Inconsistency of the h-index (Article, English)
AUTHOR: Waltman, L; Van Eck, NJ
SOURCE: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE
AND TECHNOLOGY 63 (2). FEB 2012. p.406-415
WILEY-BLACKWELL, MALDEN
SEARCH TERM(S): HIRSCH JE P NATL ACAD SCI USA 102:16569 2005
KEYWORDS+: HIGHLY CITED PAPERS; HIRSCH-INDEX; BIBLIOMETRIC
INDICATORS; SCIENTIFIC PERFORMANCE; IMPACT MEASURES;
RANKINGS; JOURNALS; SCORE; MODEL
ABSTRACT: The h-index is a popular bibliometric indicator for
assessing individual scientists. We criticize the h-index from a theoretical point of view. We argue that for the purpose of measuring the overall scientific impact of a scientist (or some other unit of analysis), the h-index behaves in a counterintuitive way. In certain cases, the mechanism used by the h-index to aggregate publication and citation statistics into a single number leads to inconsistencies in the way in which scientists are ranked. Our conclusion is that the h-index cannot be considered an appropriate indicator of a scientist's overall scientific impact. Based on recent theoretical insights, we discuss what kind of indicators can be used as an alternative to the h-index. We pay special attention to the highly cited publications indicator. This indicator has a lot in common with the h-index, but unlike the h-index it does not produce inconsistent rankings.
AUTHOR ADDRESS: L Waltman, Leiden Univ, Ctr Sci & Technol Studies, POB 905,
NL-2300 AX Leiden, Netherlands
[ ]<-- Enter an X to order article (IDS: 917FM 00015) ISSN: 1532-2882
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TITLE: The Thermodynamics-Bibliometrics Consilience and the
Meaning of h-Type Indices (Letter, English)
AUTHOR: Prathap, G
SOURCE: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE
AND TECHNOLOGY 63 (2). FEB 2012. p.430 WILEY-BLACKWELL,
MALDEN
SEARCH TERM(S): BIBLIOMETR* item_title; LETTER* doctype
AUTHOR ADDRESS: G Prathap, CSIR Natl Inst Sci Commun & Informat Resources,
New Delhi 110012, India
[ ]<-- Enter an X to order article (IDS: 917FM 00022) ISSN: 1532-2882
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TITLE: Too much impact for the Impact Factor: are a new
generation of scientists in peril? (Editorial Material, English)
AUTHOR: Pierce, GN
SOURCE: CANADIAN JOURNAL OF PHYSIOLOGY AND PHARMACOLOGY 90 (4).
APR 2012. p.III-IV CANADIAN SCIENCE PUBLISHING, NRC
RESEARCH PRESS, OTTAWA
SEARCH TERM(S): IMPACT FACTOR* item_title; EDITORIAL doctype
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TITLE: Citation Classic Genesis and Outcome of a Breast Cancer
Trial to Develop the Aromatase Inhibitor Anastrozole (Editorial Material,
English)
AUTHOR: Howell, A
SOURCE: CLINICAL CHEMISTRY 58 (4). APR 2012. p.782-783 AMER
ASSOC CLINICAL CHEMISTRY, WASHINGTON
SEARCH TERM(S): CITATION item_title; CITATION* item_title;
EDITORIAL doctype
KEYWORDS+: ARIMIDEX; TAMOXIFEN
AUTHOR ADDRESS: A Howell, Univ Manchester, Christie NHS Fdn Trust,
Manchester Breast Ctr, Wilmslow Rd, Manchester M20 4BX,
Lancs, England
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TITLE: Ethics requirements and impact factor (Article, English)
AUTHOR: Charlier, P; Bridoux, V; Watier, L; Menetrier, M; de la
Grandmaison, GL; Herve, C
SOURCE: JOURNAL OF MEDICAL ETHICS 38 (4). APR 2012. p.253-255 B
M J PUBLISHING GROUP, LONDON
SEARCH TERM(S): IMPACT FACTOR* item_title
KEYWORDS+: TRIALS
ABSTRACT: Do all clinical research publications show strong
application of ethics principles and respect for biomedical law? We examined, for the year 2009, the ethics requirements displayed on the website of 30 leading medical journals with an impact factor (IF) >10, and 30 others with an IF <10. We carried out a short study looking at the relationship between the IF of a journal and the ethics requirements in its instructions to authors. We show that the IF of a biomedical journal bears a direct relationship to its ethics requirements. Such results should improve the ethics requirements of all biomedical journals, especially those with low IF, so that they are internationally standardised to the higher standard required by journals with higher IF.
AUTHOR ADDRESS: P Charlier, Univ Hosp R Poincare, AP HP, UVSQ, Dept Forens
Med, 104 R Poincare Blvd, F-92380 Garches, France
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TITLE: Peer Review and Impact Factor as well as Preferential
Reading Give Hint to Authors of Papers for Clinical Issues (Editorial
Material, German)
AUTHOR: Gobel, U; Gortner, L
SOURCE: KLINISCHE PADIATRIE 224 (1). JAN-FEB 2012. p.3-7 GEORG
THIEME VERLAG KG, STUTTGART
SEARCH TERM(S):
HIRSCH JE P NATL ACAD SCI USA 102:16569 2005;
GARFIELD E ANN INTERN MED 105:313 1986;
KEYWORDS+: DISORDERS; JOURNALS; CHILDREN; DISEASE; INDEX; PAN
AUTHOR ADDRESS: U Gobel, Univ Dusseldorf, Koordinierungszentrum Klin
Studien, Univ Klinikum, Moorenstrasse 5, D-40225
Dusseldorf, Germany
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TITLE: Rating and Ranking of Medical Journals: A Randomised
Controlled Evaluation of Impact Factor and Number of Listed Journals
(Article, German)
AUTHOR: Gobel, U; Niem, V
SOURCE: KLINISCHE PADIATRIE 224 (1). JAN-FEB 2012. p.43-50 GEORG
THIEME VERLAG KG, STUTTGART
SEARCH TERM(S): GARFIELD E rauth; JOURNALS item_title;
IMPACT FACTOR* item_title;
GARFIELD E ANN INTERN MED 105:313 1986
KEYWORDS: impact factor; research efficacy; research assessment;
scientific journal; health sciences
KEYWORDS+: RARE DISEASES; DECADE
ABSTRACT: Background: The impact factor is a purely bibliometric
parameter built on a number of publications and their citations that occur within clearly defined periods. Appropriate interpretation of the impact factor is important as it is also used worldwide for the evaluation of research performance.
Research question: It is assumed that the number of medical journals reflects the extent of diseases and patient populations involved and that the number is correlated with the level of the impact factor.
Method: 174 category lists (Subject Categories) are included in the area Health Sciences of the ISI Web of Knowledge of Thomson Reuters, 71 of which belong to the field of medicine and 50 of which have a clinical and/or application-oriented focus. These alphabetically arranged 50 category lists were consecutively numbered, randomized by odd and even numbers, respectively, into 2 equal-sized groups and then grouped according to organ specialities, sub-specialities and cross-disciplinary fields. By tossing up a coin it was decided which group should be evaluated first. Only then the category lists were downloaded and the number of journals, as well as the impact factors of journals ranking number 1 and 2, as well as the impact factors of journals at the end of the first third and at the end of the first half of each category list were compared.
Results: The number of journals per category list varies considerably between 5 and 252. The lists of organ specialties and cross-disciplinary fields include more than three times as many journals as those of the sub- specialities; the highest numbers of journals are listed for the cross- disciplinary fields.
The level of impact factor of journals that rank number 1 in the lists varies considerably and ranges from 3,058 to 94,333; a similar variability exists for the journals at rank 2. On the other hand, the impact factor of journals at the end of the first third of the lists varies from 1,214 and 3,953, and for those journals at the end of the first half of a respective category list it varies from 0,609 and 2,872.
The slope of the straight correlation line between the level of impact factors of journals at rank 1 and 2 with the number of listed journals varies from 0,0756 and 0,2651 (correlation coefficients between 0,49 and 0,96). For the journals ranking further down in the lists the straight correlation lines run almost horizontally or with inverse slope.
Conclusions: This current analysis adds to the knowledge for an appropriate interpretation of the impact factor. Generally, greater importance should be given to the ranking of a journal within a corresponding category list.
AUTHOR ADDRESS: U Gobel, Univ Dusseldorf, Univ Klinikum, ESPED
Geschafsstelle, Koordinierungszentrum Klin Studien,
Moorenstr 5, D-40225 Dusseldorf, Germany
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TITLE: A bibliometric analysis of research papers published on
photosynthesis: 1992-2009 (Article, English)
AUTHOR: Yu, JJ; Wang, MH; Xu, M; Ho, YS
SOURCE: PHOTOSYNTHETICA 50 (1). MAR 2012. p.5-14 SPRINGER,
DORDRECHT
SEARCH TERM(S): GARFIELD E SCIENTIST 14:4 2000
KEYWORDS: author keyword; research trend; scientometrics; science
citation index expanded
KEYWORDS+: LIGHT-HARVESTING COMPLEX; SCIENCE-CITATION-INDEX;
CHLOROPHYLL FLUORESCENCE; WATER-STRESS; ELECTRON-
TRANSPORT; CRYSTAL-STRUCTURE; ATMOSPHERIC CO2; RESEARCH
TRENDS; PHOTOSYSTEM-II; ELEVATED CO2
ABSTRACT: We present here a bibliometric analysis of publications
on photosynthesis research from 1992 to 2009 in the Science Citation Index Expanded (SCI-Expanded) Web of Science. This has allowed us to examine the growing trends and the key topics on this subject. We have assessed the document type, language of the publications, publication output, subject category, journal distribution, countries and territories of these publications, institutions involved, hot topics and highly cited papers. The top 30 countries/territories were ranked according to their total number of articles (TA), single country articles (SCA), internationally collaborative articles (ICA), first author articles (FAA) and corresponding author articles (CAA). Research directions on the subject of photosynthesis were also investigated and evaluated by statistically analyzing the distribution of author keywords in the database. Our analysis indicates that "water", "stress", "carbon dioxide", "nitrogen" and "climate change" are hot topics of research on photosynthesis during this period.
AUTHOR ADDRESS: M Xu, Rutgers State Univ, Dept Ecol Evolut & Nat Resources,
New Brunswick, NJ 08901 USA
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