Journal
JOURNAL OF INFORMETRICS
Volume 1, Issue 1, Pages 26-34Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.joi.2006.08.001
Keywords
similarity measures; rankings; citation databases
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Citation analysis was traditionally based on data from the ISI Citation indexes. Now with the appearance of Scopus, and with the free citation tool Google Scholar methods and measures are need for comparing these tools. In this paper we propose a set of measures for computing the similarity between rankings induced by ordering the retrieved publications in decreasing order of the number of citations as reported by the specific tools. The applicability of these measures is demonstrated and the results show high similarities between the rankings of the ISI Web of Science and Scopus and lower similarities between Google Scholar and the other tools. (c) 2006 Elsevier Ltd. All rights reserved.
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