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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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- Abstract
- We investigated the similarities of pairs of articles that are cocited at the different cocitation levels of the journal, article, section, paragraph, sentence, and bracket. Our results indicate that textual similarity, intellectual overlap (shared references), author overlap (shared authors), proximity in publication time all rise monotonically as the cocitation level gets lower (from journal to bracket). While the main gain in similarity happens when moving from journal to article cocitation, all level changes entail an increase in similarity, especially section to paragraph and paragraph to sentence/bracket levels. We compared the results from four journals over the years 2010-2015: Cell, the European Journal of Operational Research, Physics Letters B, and Research Policy, with consistent general outcomes and some interesting differences. Our findings motivate the use of granular cocitation information as defined by meaningful units of text, with implications for, among others, the elaboration of maps of science and the retrieval of scholarly literature.
- 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: ¬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.; 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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Waltman, L.; Schreiber, M.: On the calculation of percentile-based bibliometric indicators (2013)
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- Source
- Journal of the American Society for Information Science and Technology. 64(2013) no.2, S.372-379
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Waltman, L.; Costas, R.: F1000 Recommendations as a potential new data source for research evaluation : a comparison with citations (2014)
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- Source
- Journal of the Association for Information Science and Technology. 65(2014) no.3, S.433-445
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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
