The journal coverage of Web of Science and Scopus: a comparative analysis
Philippe Mongeon,Adèle Paul-Hus +1 more
TLDR
In this article, the authors compared the coverage of active scholarly journals in the Web of Science (WoS) and Scopus (20,346 journals) with Ulrich's extensive periodical directory (63,013 journals) to assess whether some field, publishing country and language are over or underrepresented.Abstract:
Bibliometric methods are used in multiple fields for a variety of purposes, namely for research evaluation. Most bibliometric analyses have in common their data sources: Thomson Reuters' Web of Science (WoS) and Elsevier's Scopus. The objective of this research is to describe the journal coverage of those two databases and to assess whether some field, publishing country and language are over or underrepresented. To do this we compared the coverage of active scholarly journals in WoS (13,605 journals) and Scopus (20,346 journals) with Ulrich's extensive periodical directory (63,013 journals). Results indicate that the use of either WoS or Scopus for research evaluation may introduce biases that favor Natural Sciences and Engineering as well as Biomedical Research to the detriment of Social Sciences and Arts and Humanities. Similarly, English-language journals are overrepresented to the detriment of other languages. While both databases share these biases, their coverage differs substantially. As a consequence, the results of bibliometric analyses may vary depending on the database used. These results imply that in the context of comparative research evaluation, WoS and Scopus should be used with caution, especially when comparing different fields, institutions, countries or languages. The bibliometric community should continue its efforts to develop methods and indicators that include scientific output that are not covered in WoS or Scopus, such as field-specific and national citation indexes.read more
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国际刊物《Scientometrics》文献计量研究
TL;DR: In this paper, the authors propose a method to improve the quality of the data collected by the data collection system. But it is difficult to implement and time consuming and computationally expensive.
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A review of the literature on citation impact indicators
TL;DR: In this paper, an in-depth review of the literature on citation impact indicators is provided, focusing on the selection of publications and citations to be included in the calculation of citation impact indicator.
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Google Scholar, Web of Science, and Scopus: A systematic comparison of citations in 252 subject categories
TL;DR: Martin-Martin this article was funded for a four-year doctoral fellowship (FPU2013/05863) granted by the Ministerio de Educacion, Cultura, y Deportes (Spain).
Journal ArticleDOI
Google Scholar, Web of Science, and Scopus: a systematic comparison of citations in 252 subject categories
TL;DR: Alberto Martin-Martin is funded for a four-year doctoral fellowship by the Ministerio de Educacion, Cultura, y Deportes (Spain) and an international mobility grant from Universidad de Granada and CEI BioTic Granadafunded a research stay at the University of Wolverhampton.
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The state of OA: a large-scale analysis of the prevalence and impact of Open Access articles
Heather A. Piwowar,Jason Priem,Vincent Larivière,Vincent Larivière,Juan Pablo Alperin,Juan Pablo Alperin,Lisa Matthias,Bree Norlander,Ashley Farley,Jevin D. West,Stefanie Haustein,Stefanie Haustein +11 more
TL;DR: The citation impact of OA articles is examined, corroborating the so-called open-access citation advantage: accounting for age and discipline, OAarticles receive 18% more citations than average, an effect driven primarily by Green and Hybrid OA.
References
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Impact of data sources on citation counts and rankings of LIS faculty: Web of science versus scopus and google scholar
Lokman I. Meho,Kiduk Yang +1 more
TL;DR: Results show that Scopus significantly alters the relative ranking of those scholars that appear in the middle of the rankings and that GS stands out in its coverage of conference proceedings as well as international, non-English language journals.
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Bibliometric monitoring of research performance in the Social Sciences and the Humanities: A review
TL;DR: This paper addresses research performance monitoring of the social sciences and the humanities using citation analysis using a broader range of both publications and citation indicators and three options for bibliometric monitoring are discussed.
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The Oligopoly of Academic Publishers in the Digital Era
TL;DR: Analysis of 45 million documents indexed in the Web of Science over the period 1973-2013 shows that in both natural and medical sciences (NMS) and social sciences and humanities, Reed-Elsevier, Wiley-Blackwell, Springer, and Taylor & Francis increased their share of the published output, especially since the advent of the digital era (mid-1990s).
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Language biases in the coverage of the Science Citation Index and its consequencesfor international comparisons of national research performance
Thed N. van Leeuwen,Henk F. Moed,Robert J. W. Tijssen,Martijn S. Visser,Anthony F. J. van Raan +4 more
TL;DR: The authors conclude that the value of impact indicators of research activities at the level of an institution or a country strongly depend upon whether one includes research publications in SCI covered journals written in other languages than in English.