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Olensky, M.; Schmidt, M.; Eck, N.J. van: Evaluation of the citation matching algorithms of CWTS and iFQ in comparison to the Web of science (2016)
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- Abstract
- The results of bibliometric studies provided by bibliometric research groups, for example, the Centre for Science and Technology Studies (CWTS) and the Institute for Research Information and Quality Assurance (iFQ), are often used in the process of research assessment. Their databases use Web of Science (WoS) citation data, which they match according to their own matching algorithms-in the case of CWTS for standard usage in their studies and in the case of iFQ on an experimental basis. Because the problem of nonmatched citations in the WoS persists due to inaccuracies in the references or inaccuracies introduced in the data extraction process, it is important to ascertain how well these inaccuracies are rectified in these citation matching algorithms. This article evaluates the algorithms of CWTS and iFQ in comparison to the WoS in a quantitative and a qualitative analysis. The analysis builds upon the method and the manually verified corpus of a previous study. The algorithm of CWTS performs best, closely followed by that of iFQ. The WoS algorithm still performs quite well (F1 score: 96.41%), but shows deficits in matching references containing inaccuracies. An additional problem is posed by incorrectly provided cited reference information in source articles by the WoS.
- Source
- Journal of the Association for Information Science and Technology. 67(2016) no.10, S.2550-2564
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Waltman, L.; Eck, N.J. van: Some comments on the question whether co-occurrence data should be normalized (2007)
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- Source
- Journal of the American Society for Information Science and Technology. 58(2007) no.11, S.1701-1703
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Eck, N.J. van; Waltman, L.: Appropriate similarity measures for author co-citation analysis (2008)
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- Source
- Journal of the American Society for Information Science and Technology. 59(2008) no.10, S.1653-1661
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Waltman, L.; Eck, N.J. van: ¬The relation between eigenfactor, audience factor, and influence weight (2010)
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- Source
- Journal of the American Society for Information Science and Technology. 61(2010) no.7, S.1476-1486
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Waltman, L.; Eck, N.J. van; Raan, A.F.J. van: Universality of citation distributions revisited (2012)
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- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.1, S.72-77
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Eck, N.J. van; Waltman, L.: How to normalize cooccurrence data? : an analysis of some well-known similarity measures (2009)
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- Source
- Journal of the American Society for Information Science and Technology. 60(2009) no.8, S.1635-1651
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Eck, N.J. van; Waltman, L.; Dekker, R.; Berg, J. van den: ¬A comparison of two techniques for bibliometric mapping : multidimensional scaling and VOS (2010)
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- Source
- Journal of the American Society for Information Science and Technology. 61(2010) no.12, S.2405-2416
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Waltman, L.; Eck, N.J. van: ¬The inconsistency of the h-index : the case of web accessibility in Western European countries (2012)
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- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.2, S.406-415
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Colavizza, G.; Boyack, K.W.; Eck, N.J. van; Waltman, L.: ¬The closer the better : similarity of publication pairs at different cocitation levels (2018)
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- Source
- Journal of the Association for Information Science and Technology. 69(2018) no.4, S.600-609
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Waltman, L.; Eck, N.J. van: ¬A new methodology for constructing a publication-level classification system of science : keyword maps in Google scholar citations (2012)
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- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.12, S.2378-2392
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Waltman, L.; Calero-Medina, C.; Kosten, J.; Noyons, E.C.M.; Tijssen, R.J.W.; Eck, N.J. van; Leeuwen, T.N. van; Raan, A.F.J. van; Visser, M.S.; Wouters, P.: ¬The Leiden ranking 2011/2012 : data collection, indicators, and interpretation (2012)
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- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.12, S.2405-2418
