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  • × author_ss:"Waltman, L."
  1. Waltman, L.; Eck, N.J. van: Some comments on the question whether co-occurrence data should be normalized (2007) 0.01
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    Source
    Journal of the American Society for Information Science and Technology. 58(2007) no.11, S.1701-1703
  2. Hicks, D.; Wouters, P.; Waltman, L.; Rijcke, S. de; Rafols, I.: ¬The Leiden Manifesto for research metrics : 10 principles to guide research evaluation (2015) 0.01
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    Abstract
    Research evaluation has become routine and often relies on metrics. But it is increasingly driven by data and not by expert judgement. As a result, the procedures that were designed to increase the quality of research are now threatening to damage the scientific system. To support researchers and managers, five experts led by Diana Hicks, professor in the School of Public Policy at Georgia Institute of Technology, and Paul Wouters, director of CWTS at Leiden University, have proposed ten principles for the measurement of research performance: the Leiden Manifesto for Research Metrics published as a comment in Nature.
  3. Eck, N.J. van; Waltman, L.: Appropriate similarity measures for author co-citation analysis (2008) 0.01
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    Source
    Journal of the American Society for Information Science and Technology. 59(2008) no.10, S.1653-1661
  4. Waltman, L.; Eck, N.J. van: ¬The relation between eigenfactor, audience factor, and influence weight (2010) 0.01
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    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.7, S.1476-1486
  5. Waltman, L.; Eck, N.J. van; Raan, A.F.J. van: Universality of citation distributions revisited (2012) 0.01
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    Source
    Journal of the American Society for Information Science and Technology. 63(2012) no.1, S.72-77
  6. Eck, N.J. van; Waltman, L.: How to normalize cooccurrence data? : an analysis of some well-known similarity measures (2009) 0.01
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    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.8, S.1635-1651
  7. 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) 0.01
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    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.12, S.2405-2416
  8. Waltman, L.; Eck, N.J. van: ¬The inconsistency of the h-index : the case of web accessibility in Western European countries (2012) 0.01
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    Source
    Journal of the American Society for Information Science and Technology. 63(2012) no.2, S.406-415
  9. Waltman, L.; Schreiber, M.: On the calculation of percentile-based bibliometric indicators (2013) 0.01
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    Source
    Journal of the American Society for Information Science and Technology. 64(2013) no.2, S.372-379
  10. Waltman, L.; Costas, R.: F1000 Recommendations as a potential new data source for research evaluation : a comparison with citations (2014) 0.01
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    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.3, S.433-445
  11. Colavizza, G.; Boyack, K.W.; Eck, N.J. van; Waltman, L.: ¬The closer the better : similarity of publication pairs at different cocitation levels (2018) 0.01
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    Source
    Journal of the Association for Information Science and Technology. 69(2018) no.4, S.600-609
  12. 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) 0.01
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    Source
    Journal of the American Society for Information Science and Technology. 63(2012) no.12, S.2378-2392
  13. 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) 0.01
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    Source
    Journal of the American Society for Information Science and Technology. 63(2012) no.12, S.2405-2418
  14. Sjögårde, P.; Ahlgren, P.; Waltman, L.: Algorithmic labeling in hierarchical classifications of publications : evaluation of bibliographic fields and term weighting approaches (2021) 0.01
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    Source
    Journal of the Association for Information Science and Technology. 72(2021) no.7, S.853-869