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A modification of the h-index: The hm-index accounts for multi-authored manuscripts

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  • Schreiber, Michael

Abstract

In order to take multiple co-authorship appropriately into account, a straightforward modification of the Hirsch index was recently proposed. Fractionalised counting of the papers yields an appropriate measure which is called the hm-index. The effect of this procedure is compared in the present work with other variants of the h-index and found to be superior to the fractionalised counting of citations and to the normalization of the h-index with the average number of authors in the h-core. Three fictitious examples for model cases and one empirical case are analysed.

Suggested Citation

  • Schreiber, Michael, 2008. "A modification of the h-index: The hm-index accounts for multi-authored manuscripts," Journal of Informetrics, Elsevier, vol. 2(3), pages 211-216.
    • Handle: RePEc:eee:infome:v:2:y:2008:i:3:p:211-216
    DOI: 10.1016/j.joi.2008.05.001
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    References listed on IDEAS

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    1. Juan Imperial & Alonso Rodríguez-Navarro, 2007. "Usefulness of Hirsch’s h-index to evaluate scientific research in Spain," Scientometrics, Springer;Akadémiai Kiadó, vol. 71(2), pages 271-282, May.
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    3. Lutz Bornmann & Hans‐Dieter Daniel, 2007. "What do we know about the h index?," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 58(9), pages 1381-1385, July.
    4. Leo Egghe & Ronald Rousseau & Guido Van Hooydonk, 2000. "Methods for accrediting publications to authors or countries: Consequences for evaluation studies," Journal of the American Society for Information Science, Association for Information Science & Technology, vol. 51(2), pages 145-157.
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