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The influence of random removal of sources and items on the h-index

Author

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  • L. Egghe

    (Universiteit Hasselt (UHasselt)
    Universiteit Antwerpen (UA), IBW)

Abstract

If we have two information production processes with the same h-index, random removal of items causes one system to have a higher h-index than the other system while random removal of sources causes the opposite effect. In a Lotkaian framework we prove formulae for the h-index in case of random removal of items and in case of random removal of sources. In conclusion, we warn for the use of the h-index in case of incomplete data sets.

Suggested Citation

  • L. Egghe, 2011. "The influence of random removal of sources and items on the h-index," Scientometrics, Springer;Akadémiai Kiadó, vol. 88(2), pages 363-370, August.
    • Handle: RePEc:spr:scient:v:88:y:2011:i:2:d:10.1007_s11192-011-0411-0
    DOI: 10.1007/s11192-011-0411-0
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    References listed on IDEAS

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    1. Leo Egghe & Ronald Rousseau, 2006. "An informetric model for the Hirsch-index," Scientometrics, Springer;Akadémiai Kiadó, vol. 69(1), pages 121-129, October.
    2. Anthony F. J. Raan, 2006. "Comparison of the Hirsch-index with standard bibliometric indicators and with peer judgment for 147 chemistry research groups," Scientometrics, Springer;Akadémiai Kiadó, vol. 67(3), pages 491-502, June.
    3. Monika Henzinger & Jacob Suñol & Ingmar Weber, 2010. "The stability of the h-index," Scientometrics, Springer;Akadémiai Kiadó, vol. 84(2), pages 465-479, August.
    4. Egghe, L., 2008. "Examples of simple transformations of the h-index: Qualitative and quantitative conclusions and consequences for other indices," Journal of Informetrics, Elsevier, vol. 2(2), pages 136-148.
    5. Michael G. Banks, 2006. "An extension of the Hirsch index: Indexing scientific topics and compounds," Scientometrics, Springer;Akadémiai Kiadó, vol. 69(1), pages 161-168, October.
    6. Tibor Braun & Wolfgang Glänzel & András Schubert, 2006. "A Hirsch-type index for journals," Scientometrics, Springer;Akadémiai Kiadó, vol. 69(1), pages 169-173, October.
    7. Leo Egghe, 2010. "Influence of adding or deleting items and sources on the h-index," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 61(2), pages 370-373, February.
    Full references (including those not matched with items on IDEAS)

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