Papers of interest to SIG-Metrics Readers (mainly Scientometrics)
Eugene Garfield
eugene.garfield at THOMSONREUTERS.COM
Fri Jun 1 16:33:50 EDT 2012
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TITLE: A new instrument for technology monitoring: novelty in
patents measured by semantic patent analysis (Article, English)
AUTHOR: Gerken, JM; Moehrle, MG
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.645-670 SPRINGER,
DORDRECHT
SEARCH TERM(S): KESSLER MM AM DOC 14:10 1963
KEYWORDS: Novelty measurement; Semantic patent analysis; Inventive
progress; Technology monitoring; Citation analysis;
Classification analysis
KEYWORDS+: RESEARCH-AND-DEVELOPMENT; CO-WORD ANALYSIS; INNOVATION;
INDUSTRY; TRENDS; INDICATORS; INVENTIONS; SIMILARITY;
CITATIONS; EVOLUTION
ABSTRACT: Given that in terms of technology novel inventions are
crucial factors for companies; this article contributes to the identification of inventions of high novelty in patent data. As companies are confronted with an information overflow, and having patents reviewed by experts is a time-consuming task, we introduce a new approach to the identification of inventions of high novelty: a specific form of semantic patent analysis. Subsequent to the introduction of the concept of novelty in patents, the classical method of semantic patent analysis will be adapted to support novelty measurement. By means of a case study from the automotive industry, we corroborate that semantic patent analysis is able to outperform available methods for the identification of inventions of high novelty. Accordingly, semantic patent information possesses the potential to enhance technology monitoring while reducing both costs and uncertainty in the identification of inventions of high novelty.
AUTHOR ADDRESS: JM Gerken, Univ Bremen, Inst Project Management & Innovat
IPMI, Wilhelm Herbst Str 12, D-28359 Bremen, Germany
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TITLE: A quantitative analysis of Arctic related articles in the
humanities and social sciences appearing in the world core journals
(Article, English)
AUTHOR: Hua, WN; Yuan, SB; Yan, MM; Li, Y
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.703-718 SPRINGER,
DORDRECHT
SEARCH TERM(S): HIRSCH JE P NATL ACAD SCI USA 102:16569 2005;
JOURNALS item_title
KEYWORDS: Arctic studies; Bibliometric study; Humanities and social
sciences
KEYWORDS+: NETWORK ANALYSIS; CONTROVERSY; INDEX
ABSTRACT: To demonstrate the importance of Arctic studies in the
humanities and social sciences, we collected data from the SSCI and A&HCI covering a period of over 100 years and focused on the number of papers published each year, the major journals, types of documents, major languages represented, authors and their countries publishing the most articles, author's affiliations, collaboration and the major research subjects covered. The results indicate that worldwide scholars had never been absent in this field for more than one century. Countries near the Arctic, particularly in North America and the Nordic, show the most interest and have the most research results. Universities and colleges are the most important research institutions in this field. North America is the area that has conducted the largest amount of research, while some Western European countries such as Germany and France, performed with great enthusiasm research in relation with North Pole expeditions. Arctic research in the humanities and social sciences has gradually expanded from the historical, archaeological, and anthropological fields to the realm of political, social, educational sciences including international relations, music, art, etc.
AUTHOR ADDRESS: WN Hua, Nanjing Univ, Sch Informat Management, 22 Hankou
Rd, Nanjing 210093, Jiangsu, Peoples R China
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TITLE: The taxonomy of research collaboration in science and
technology: evidence from mechanical research through probabilistic
clustering analysis (Article, English)
AUTHOR: Jeong, S; Choi, JY
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.719-735 SPRINGER,
DORDRECHT
SEARCH TERM(S): PRICE DJD rauth
KEYWORDS: Research collaboration; Research and development strategy;
Clustering; Gaussian mixture
KEYWORDS+: INTERNATIONAL COLLABORATION; CO-AUTHORSHIPS; MODEL;
DETERMINANTS; PROJECTS; QUALITY; IMPACTS
ABSTRACT: This paper suggests an empirical framework to classify
research collaboration activities with developed indicators that carry on a previous theoretical framework (Wagner [Science and Technology Policy for Development, Dialogues at the Interface, 2006]; Wagner et al.
[Linking effectively: Learning lessons from successful collaboration in science and technology. DB-345-OSTP, 2002]) by employing the Gaussian mixture model, an advanced probabilistic clustering analysis. By further exploring the method upon a profound evidence-based reflection of actual phenomena, this paper also proposes an exploratory analysis to manage and evaluate research projects upon their differentiated classification in a preceding perspective of research collaboration and R&D management. In addition, the results show that international collaboration tends to be associated with more evenly committed collaboration, and that collaboration featuring a higher degree of funding or dispersed commitments generally results in larger outcomes than research clustered on the opposite side of the framework.
AUTHOR ADDRESS: JY Choi, Korea Inst Ind Econ & Trade KIET, Ctr Growth
Engine Ind, 66 Hoegiro, Seoul, South Korea
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TITLE: Metrics to evaluate research performance in academic
institutions: a critique of ERA 2010 as applied in forestry and the
indirect H-2 index as a possible alternative (Article, English)
AUTHOR: Vanclay, JK; Bornmann, L
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.751-771 SPRINGER,
DORDRECHT
SEARCH TERM(S): HIRSCH JE P NATL ACAD SCI USA 102:16569 2005
KEYWORDS: Successive h-index; Percentile; h-index; Excellence for
Research in Australia (ERA)
KEYWORDS+: SUCCESSIVE H-INDEXES; JOURNAL RANKING; GOOGLE-SCHOLAR;
CITATION ANALYSIS; RESEARCH QUALITY; IMPACT; WEB;
INDICATORS; ECONOMICS; VARIANTS
ABSTRACT: Excellence for Research in Australia (ERA) is an attempt
by the Australian Research Council to rate Australian universities on a 5- point scale within 180 Fields of Research using metrics and peer evaluation by an evaluation committee. Some of the bibliometric data contributing to this ranking suffer statistical issues associated with skewed distributions. Other data are standardised year-by-year, placing undue emphasis on the most recent publications which may not yet have reliable citation patterns. The bibliometric data offered to the evaluation committees is extensive, but lacks effective syntheses such as the h-index and its variants. The indirect H-2 index is objective, can be computed automatically and efficiently, is resistant to manipulation, and a good indicator of impact to assist the ERA evaluation committees and to similar evaluations internationally.
AUTHOR ADDRESS: JK Vanclay, So Cross Univ, POB 157, Lismore, NSW 2480,
Australia
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TITLE: A comparative study of interdisciplinary changes between
information science and library science (Article, English)
AUTHOR: Huang, MH; Chang, YW
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.789-803 SPRINGER,
DORDRECHT
SEARCH TERM(S): WHITE HD J AM SOC INFORM SCI 32:163 1981
KEYWORDS: Interdisciplinary changes; Library science; Information
science; Direct citation
KEYWORDS+: AUTHOR COCITATION; CITATION; PATTERNS; COMMUNICATION;
DISCIPLINES; EVOLUTION; SCHOLARS; FIELD; WORK; MAP
ABSTRACT: This study employs the method of direct citation to
analyze and compare the interdisciplinary characteristics of the two disciplines of library science and information science during the period of 1978-2007. Based on the research generated by five library science journals and five information science journals, library science researchers tend to cite publications from library and information science (LIS), education, business/management, sociology, and psychology, while researchers of information science tend to cite more publications from LIS, general science, computer science, technology, and medicine.
This means that the disciplines with larger contributions to library science are almost entirely different from those contributing to information science. In addition, researchers of library science frequently cite publications from LIS; the rate is as high as 65.61%, which is much higher than the rate for information science, 49.50%.
However, a decreasing trend in the percentage of LIS in library science indicates that library science researchers tend to cite more publications from non-LIS disciplines. A rising trend in the proportion of references to education sources is reported for library science articles, while a rising trend in the proportion of references to computer science sources has been found for information science articles. In addition, this study applies an interdisciplinary indicator, Brillouin's Index, to measurement of the degree of interdisciplinarity. The results confirm that the trend toward interdisciplinarity in both information science and library science has risen over the years, although the degree of interdisciplinarity in information science is higher than that in library science.
AUTHOR ADDRESS: MH Huang, Natl Taiwan Univ, Dept Lib & Informat Sci, 1,Sec
4,Roosevelt Rd, Taipei 10617, Taiwan
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TITLE: Using complex networks concepts to assess approaches for
citations in scientific papers (Article, English)
AUTHOR: Amancio, DR; Nunes, MGV; Oliveira, ON Jr; Costa, LD
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.827-842 SPRINGER,
DORDRECHT
SEARCH TERM(S): MACROBERTS MH rauth;
GROSS PLK SCIENCE 66:385 1927;
CITATION* item_title
KEYWORDS: Complex networks; Virtual scientometry; Similarity network
KEYWORDS+: CITING BEHAVIOR; FAWLTY TOWERS; OMBUDSMAN; QUALITY;
SCIENCE
ABSTRACT: The number of citations received by authors in scientific
journals has become a major parameter to assess individual researchers and the journals themselves through the impact factor. A fair assessment therefore requires that the criteria for selecting references in a given manuscript should be unbiased with regard to the authors or journals cited. In this paper, we assess approaches for citations considering two recommendations for authors to follow while preparing a manuscript: (i) consider similarity of contents with the topics investigated, lest related work should be reproduced or ignored; (ii) perform a systematic search over the network of citations including seminal or very related papers. We use formalisms of complex networks for two datasets of papers from the arXiv and the Web of Science repositories to show that neither of these two criteria is fulfilled in practice. By representing the texts as complex networks we estimated a similarity index between pieces of texts and found that the list of references did not contain the most similar papers in the dataset. This was quantified by calculating a consistency index, whose maximum value is one if the references in a given paper are the most similar in the dataset. For the areas of "complex networks" and "graphenes", the consistency index was only 0.11-
0.23 and 0.10-0.25, respectively. To simulate a systematic search in the citation network, we employed a traditional random walk search (i.e.
diffusion) and a random walk whose probabilities of transition are proportional to the number of the ingoing edges of the neighbours. The frequency of visits to the nodes (papers) in the network had a very small correlation with either the actual list of references in the papers or with the number of downloads from the arXiv repository. Therefore, apparently the authors and users of the repository did not follow the criterion related to a systematic search over the network of citations.
Based on these results, we propose an approach that we believe is fairer for evaluating and complementing citations of a given author, effectively leading to a virtual scientometry.
AUTHOR ADDRESS: DR Amancio, Univ Sao Paulo, Inst Phys Sao Carlos, POB 369,
BR-13560970 Sao Paulo, Brazil
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TITLE: The Hawthorne effect in journal peer review (Review,
English)
AUTHOR: Bornmann, L
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.857-862 SPRINGER,
DORDRECHT
SEARCH TERM(S): ZUCKERMAN H rauth;
ZUCKERMA.H MINERVA 9:66 1971;
JOURNAL item_title
KEYWORDS: Editorial peer review; Manuscript rejection; Hawthorne
effect
KEYWORDS+: PREDICTIVE-VALIDITY; ANGEWANDTE-CHEMIE; MANUSCRIPTS; FATE;
SCIENCE; BIAS; NEURORADIOLOGY; PUBLICATION; ACCEPTANCE;
AGREEMENT
ABSTRACT: Purpose-this paper aims to look at the Hawthorne effect
in editorial peer review. Design/methodology/approach-discusses the quality evaluation of refereed scholarly journals. Findings-a key finding of this research was that in the peer review process of one and the same manuscript, reviewers or editors, respectively, arrive at different judgments. This phenomenon is named as "Hawthorne effect" because the different judgements are dependent on the specific conditions under which the peer review process at the individual journals takes place.
Originality/value-provides a discussion on the quality evaluation of scholarly journals.
AUTHOR ADDRESS: L Bornmann, Max Planck Soc, Hofgartenstr 8, D-80539 Munich,
Germany
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TITLE: A publication index that is independent of age (Article,
English)
AUTHOR: Abt, HA
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.863-868 SPRINGER,
DORDRECHT
SEARCH TERM(S): HIRSCH JE P NATL ACAD SCI USA 102:16569 2005
KEYWORDS: Publication indexes; Astronomy; Hirsch h-index
ABSTRACT: The Hirsch h-index is widely used to measure a
researcher's major publications. It has the advantage of being easy to compute. However, it increases steeply with time and therefore does not allow a comparison of young and mature researchers. We find that if the h- index is divided by the number of decades since publication of the researcher's first paper, the result is statistically constant with age.
Then the resulting index can be compared for young and old researchers.
Its accuracy is the same as that of the h-index and is as easy to compute as the h-index.
AUTHOR ADDRESS: HA Abt, Kitt Peak Natl Observ, Box 26732, Tucson, AZ 85726
USA
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TITLE: Identifying attractive research fields for new scientists
(Article, English)
AUTHOR: Akritidis, L; Katsaros, D; Bozanis, P
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.869-894 SPRINGER,
DORDRECHT
SEARCH TERM(S):
HIRSCH JE P NATL ACAD SCI USA 102:16569 2005;
GARFIELD E SCIENCE 178:471 1972
KEYWORDS: Scientist; Author; Research area; Research field;
Scientometrics; Attractive
KEYWORDS+: H-INDEX; HIRSCH INDEX; JOURNALS; RANKING; SCIENCE;
CITATIONS; IMPACT
ABSTRACT: Prior to the beginning of a scientific career, every new
scientist is obliged to confront the critical issue of defining the subject area where his/her future research will be conducted. Regardless of the capabilities of a new scholar, an erroneous selection may condemn a dignified effort and result in wasted energy, time and resources. In this article we attempt to identify the research fields which are attractive to these individuals. To the best of our knowledge, this is a new topic that has never been discussed or addressed in the literature.
Here we formally set the problem and we propose a solution combining the characteristics of the attractive research areas and the new scholars.
Our approach is compared against a statistical model which reveals popular research areas. The comparison of this method to our proposed model leads to the conclusion that not all trendy research areas are suitable for new scientists. A secondary outcome reveals the existence of scientific fields which although they are not so emerging, they are promising for scientists who are starting their career.
AUTHOR ADDRESS: D Katsaros, Univ Thessaly, Volos, Greece
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TITLE: A bibliometric tool to assess the regional dimension of
university-industry research collaborations (Article, English)
AUTHOR: Abramo, G; D'Angelo, CA; Solazzi, M
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.955-975 SPRINGER,
DORDRECHT
SEARCH TERM(S): BIBLIOMETR* item_title
KEYWORDS: Research collaboration; University-industry interaction;
Knowledge spillover; Bibliometrics; Co-authorship; Italy
KEYWORDS+: RESEARCH-AND-DEVELOPMENT; KNOWLEDGE SPILLOVERS;
INNOVATION SYSTEMS; EUROPEAN REGIONS; GROWTH; SCIENCE;
ENTREPRENEURSHIP; PROXIMITY
ABSTRACT: The present study proposes a bibliometric methodology for
measuring the grade of correspondence between regional industry's demand for research collaboration and supply from public laboratories. The methodology also permits measurement of the intensity and direction of the regional flows of knowledge in public-private collaborations. The aim is to provide a diagnostic instrument for regional and national policy makers, which could add to existing ones to plan interventions for re- balancing sectorial public supply of knowledge with industrial absorptive capacity, and maximizing appropriability of knowledge spillovers. The methodology is applied to university-industry collaborations in the hard sciences in all Italian administrative regions.
AUTHOR ADDRESS: G Abramo, Natl Res Council Italy, Inst Syst Anal & Comp Sci
IASI CNR, Rome, Italy
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TITLE: State of the art on the Systems of Innovation research: a
bibliometrics study up to 2009 (Article, English)
AUTHOR: Uriona-Maldonado, M; dos Santos, RNM; Varvakis, G
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.977-996 SPRINGER,
DORDRECHT
SEARCH TERM(S):
SMALL H J AM SOC INFORM SCI 24:265 1973;
BIBLIOMETR* item_title
KEYWORDS: Innovation Systems; Systems of Innovation; Bibliometrics
KEYWORDS+: NATIONAL SYSTEMS; INTERNATIONAL COMPETITIVENESS;
TECHNOLOGICAL INFRASTRUCTURE; HISTORICAL-PERSPECTIVE;
TECHNICAL CHANGE; POLICY; DETERMINANTS; TRAJECTORIES;
CAPACITY; TAXONOMY
ABSTRACT: Over the last decades there has been a growing interest
on developing research and formulating public policy by using the Innovation Systems approach. However, as evidenced on the academic literature there is a lack of systematic, chronological and synthesizing studies indicating how this field has evolved over time. This paper has as main objective to consolidate the state of the art of academic research on IS, based on a bibliometrics study on literature published over the past 35 years. The results are discussed under the following
perspectives: general results, chronological distribution, author relevance, articles and cited references of relevance, journals relevance and institutions and countries relevance. The paper ends with a discussion of the main implications and limitations of the study.
AUTHOR ADDRESS: M Uriona-Maldonado, Univ Fed Santa Catarina, Dept Knowledge
Engn, Campus UFSC, BR-88040970 Florianopolis, SC, Brazil
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TITLE: Research on the cross-citation relationship of core
authors in scientometrics (Article, English)
AUTHOR: Wang, FF; Qiu, JP; Yu, HQ
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.1011-1033 SPRINGER,
DORDRECHT
SEARCH TERM(S): SMALL H J AM SOC INFORM SCI 24:265 1973;
WHITE HD J AM SOC INFORM SCI 32:163 1981;
SCIENTOMETRIC* item_title; CITATION item_title;
CITATION* item_title
KEYWORDS: Scientometrics; Author cross-citation; Knowledge
communication; Academic community
KEYWORDS+: INFORMATION-SCIENCE; COCITATION ANALYSIS; WEB
ABSTRACT: Generally speaking, citation relationship among authors
can be divided into 3 types: co-citation, coupling and cross-citation.
Since author co-citation analysis was first introduced in 1982, it has been widely applied to study discipline structure, research state and research trends. Afterwards, conception of author bibliographic-coupling analysis was put forward and related empirical studies provided a method for mapping active authors in a research field for a more realistic picture of the current state of its research activities. Additionally, if one of author A's papers has a citation from one of author B's, there is cross-citation relationship between A and B. However, studies based on author cross-citation relationship mainly describe citation behaviors themselves using citation identity and citation image; they rarely involve any implicit knowledge communication, author research correlation or discovering academic communities. Author cross-citation analysis infers to both citing and cited phenomenon, which can be roughly correspond to citation identity and citation image. The study will further explore the author cross-citation relationship with core authors in scientometrics field as study object in order to provide reference for development of scientometrics field and in-depth application of citation analysis.
AUTHOR ADDRESS: FF Wang, Wuhan Univ, Sch Informat Management, Wuhan 430072,
Peoples R China
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TITLE: A bibliometric study of research activity in ASEAN
related to the EU in FP7 priority areas (Article, English)
AUTHOR: Hassan, SU; Haddawy, P; Kuinkel, P; Degelsegger, A;
Blasy, C
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.1035-1051 SPRINGER,
DORDRECHT
SEARCH TERM(S): GARFIELD E rauth; BIBLIOMETR* item_title
KEYWORDS: Bibliometrics; FP7 thematic priority areas; Southeast
Asia's research activity; International research
collaboration
ABSTRACT: Two relevant recent developments in the area of science
and technology (S&T) and related policy-making motivate this article:
first, bibliometric data on a specific research area's performance becomes an increasingly relevant source for S&T policy-making and evaluation. This trend is embedded in wider discussions on evidence-based policy-making. Secondly, the scientific output of Southeast Asian countries is rising, as is the number of international research collaborations with the second area of our interest: Europe. Against this background, we employ basic bibliometric methodology in order to draw a picture of Southeast Asian research strengths as well the amount and focus of S&T cooperation between the countries in Southeast Asia and the European Union. The results can prove useful for an interested public as well as for the scientific community and science, technology and innovation policy-making.
AUTHOR ADDRESS: SU Hassan, AIT Asian Inst Technol, POB 4, Klongluang 12120,
Pathumthani, Thailand
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TITLE: On the age-independent publication index (Article,
English)
AUTHOR: Sangwal, K
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.1053-1058 SPRINGER,
DORDRECHT
SEARCH TERM(S): HIRSCH JE P NATL ACAD SCI USA 102:16569 2005
KEYWORDS: Age-independent index alpha; Citation acceleration a;
Hirsch index h; Hirsch constant A
KEYWORDS+: OUTPUT
ABSTRACT: It is shown that the age-independent index based on h-
type index per decade, called hereafter an alpha index instead of the a index, suggested by Kosmulski (Journal of Informetrics 3, 341-347, 2009) and Abt (Scientometrics 2012) is related to the square-root of the ratio of citation acceleration a to the Hirsch constant A.
AUTHOR ADDRESS: K Sangwal, Lublin Univ Technol, Dept Appl Phys, Ul
Nadbystrzycka 38, PL-20618 Lublin, Poland
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TITLE: Comments on "a bibliometric study of the trend in
articles related to eutrophication published in Science Citation Index"
(Editorial Material, English)
AUTHOR: Chuang, KY; Ho, YS
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.1061-1065 SPRINGER,
DORDRECHT
SEARCH TERM(S): SCIENCE CITATION INDEX item_title;
BIBLIOMETR* item_title; CITATION item_title;
CITATION* item_title; EDITORIAL doctype
AUTHOR ADDRESS: YS Ho, Asia Univ, Trend Res Ctr, 500 Lioufeng Rd, Wufeng
41354, Taichung County, Taiwan
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TITLE: Response to Chuang and Ho's comments on "a bibliometric
study of the trend in articles related to eutrophication published in
Science Citation Index" (Editorial Material, English)
AUTHOR: Huang, Y; Wang, J
SOURCE: SCIENTOMETRICS 91 (3). JUN 2012. p.1067-1071 SPRINGER,
DORDRECHT
SEARCH TERM(S): SCIENCE CITATION INDEX item_title;
BIBLIOMETR* item_title; CITATION item_title;
CITATION* item_title; EDITORIAL doctype
KEYWORDS: Eutrophication; Eutrophic; Bibliometric; SCI
ABSTRACT: This note is a response Chuang and Ho's comments
regarding to the appropriate selection of keywords for a bibliometric study entitled "a bibliometric study of the trend in articles related to eutrophication published in Science Citation Index" published in Scientometrics. Chuang's inquiry was Huang and Yi's careless use of filter, which had committed inaccurate results and wrong conclusions.
This short note will explain the authors' arguments to Chuang and Ho's inquiry in two folds, the conceptual analysis of keywords selection, and bibliometric comparison between 'eutrophication' and 'eutrophication and eutrophic'.
AUTHOR ADDRESS: J Wang, Peking Univ, Coll Environm Sci & Engn, 5 Yiheyuan
Rd, Beijing 100871, Peoples R China
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TITLE: Four decades of health economics through a bibliometric
lens (Article, English)
AUTHOR: Wagstaff, A; Culyer, AJ
SOURCE: JOURNAL OF HEALTH ECONOMICS 31 (2). MAR 2012. p.406-439
ELSEVIER SCIENCE BV, AMSTERDAM
SEARCH TERM(S): HIRSCH JE P NATL ACAD SCI USA 102:16569 2005;
BIBLIOMETR* item_title
KEYWORDS: Health economics; Bibliometrics; History of economic
thought
KEYWORDS+: MEDICAL-CARE; HOSPITALIZED-PATIENTS; WELFARE ECONOMICS;
ADVERSE EVENTS; INSURANCE; SERVICES; DEMAND; PRICE;
INSTITUTIONS; SATISFACTION
ABSTRACT: In this paper, we take a bibliometric tour of the last
forty years of health economics using bibliographic "metadata" from EconLit supplemented by citation data from Google Scholar and our own topical classifications. We report the growth of health economics (we find 33,000 publications since 1969-12,000 more than in the economics of
education) and list the 300 most-cited publications broken down by topic.
We report the changing topical and geographic focus of health economics (the topics 'Determinants of health and ill-health' and 'Health statistics and econometrics' both show an upward trend, and the field has expanded appreciably into the developing world). We also compare authors, countries, institutions and journals in terms of the volume of publications and their influence as measured through various citation- based indices (Grossman, the US, Harvard and the JHE emerge close to or at the top on a variety of measures). (C) 2012 World Bank. Published by Elsevier B.V. All rights reserved.
AUTHOR ADDRESS: A Wagstaff, World Bank, Dev Res Grp, 1818 H St NW,
Washington, DC 20433 USA
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TITLE: A review of power laws in real life phenomena (Review,
English)
AUTHOR: Pinto, CMA; Lopes, AM; Machado, JAT
SOURCE: COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL
SIMULATION 17 (9). SEP 2012. p.3558-3578 ELSEVIER
SCIENCE BV, AMSTERDAM
SEARCH TERM(S): PRICE DJD rauth
KEYWORDS: Power law behavior; Parento law; Zipf law; Heavy tail
distributions; Applications
KEYWORDS+: SELF-ORGANIZED CRITICALITY; CITY SIZE DISTRIBUTION;
FOREST-FIRE MODEL; WORLD-WIDE-WEB; ZIPFS LAW; PARETO LAW;
INCOME-DISTRIBUTION; CITIES; SCALE; EXPLANATION
ABSTRACT: Power law distributions, also known as heavy tail
distributions, model distinct real life phenomena in the areas of biology, demography, computer science, economics, information theory, language, and astronomy, amongst others. In this paper, it is presented a review of the literature having in mind applications and possible explanations for the use of power laws in real phenomena. We also unravel some controversies around power laws. (C) 2012 Elsevier B.V. All rights reserved.
AUTHOR ADDRESS: CMA Pinto, Univ Porto, Inst Super Engn Porto, Ctr Matemat,
Rua Dr Antonio Bernardino de Almeida 431, P-4200072 Oporto,
Portugal
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