Large-scale comparison of bibliographic data sources: Scopus, Web of
                    Science, Dimensions, Crossref, and Microsoft Academic

Martijn Visser, Nees Jan van Eck, Ludo Waltman

doi:10.1162/qss_a_00112

Large-scale comparison of bibliographic data sources: Scopus, Web of Science, Dimensions, Crossref, and Microsoft Academic

Martijn Visser

Centre for Science and Technology Studies, Leiden University, The Netherlands
Nees Jan van Eck

Centre for Science and Technology Studies, Leiden University, The Netherlands
Ludo Waltman

Centre for Science and Technology Studies, Leiden University, The Netherlands

説明

<jats:title>Abstract</jats:title> <jats:p>We present a large-scale comparison of five multidisciplinary bibliographic data sources: Scopus, Web of Science, Dimensions, Crossref, and Microsoft Academic. The comparison considers scientific documents from the period 2008–2017 covered by these data sources. Scopus is compared in a pairwise manner with each of the other data sources. We first analyze differences between the data sources in the coverage of documents, focusing for instance on differences over time, differences per document type, and differences per discipline. We then study differences in the completeness and accuracy of citation links. Based on our analysis, we discuss the strengths and weaknesses of the different data sources. We emphasize the importance of combining a comprehensive coverage of the scientific literature with a flexible set of filters for making selections of the literature.</jats:p>