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Measuring impact of twelve information scientists using the DCI index

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  • Per Ahlgren
  • Kalervo Järvelin

Abstract

The Discounted Cumulated Impact (DCI) index has recently been proposed for research evaluation. In the present work an earlier dataset by Cronin and Meho (2007) is reanalyzed, with the aim of exemplifying the salient features of the DCI index. We apply the index on, and compare our results to, the outcomes of the Cronin‐Meho (2007) study. Both authors and their top publications are used as units of analysis, which suggests that, by adjusting the parameters of evaluation according to the needs of research evaluation, the DCI index delivers data on an author's (or publication's) “lifetime” impact or current impact at the time of evaluation on an author's (or publication's) capability of inviting citations from highly cited later publications as an indication of impact, and on the relative impact across a set of authors (or publications) over their “lifetime” or currently.

Suggested Citation

  • Per Ahlgren & Kalervo Järvelin, 2010. "Measuring impact of twelve information scientists using the DCI index," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 61(7), pages 1424-1439, July.
    • Handle: RePEc:bla:jamist:v:61:y:2010:i:7:p:1424-1439
    DOI: 10.1002/asi.21333
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