A priori vs. a posteriori normalisation of citation indicators. The case of journal ranking

Wolfgang Glänzel, András Schubert, Bart Thijs, Koenraad Debackere

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Two paradigmatic approaches to the normalisation of citation-impact measures are discussed. The results of the mathematical manipulation of standard indicators such as citation means, notably journal Impact Factors, (called a posteriori normalisation) are compared with citation measures obtained from fractional citation counting (called a priori normalisation). The distributions of two subfields of the life sciences and mathematics are chosen for the analysis. It is shown that both methods provide indicators that are useful tools for the comparative assessment of journal citation impact.

Original languageEnglish
Pages (from-to)415-424
Number of pages10
JournalScientometrics
Volume87
Issue number2
DOIs
Publication statusPublished - May 2011

Keywords

  • Characteristic scores and scales
  • Citation measures
  • Journal impact measures
  • Journal ranking
  • Normalisation

ASJC Scopus subject areas

  • Social Sciences(all)
  • Computer Science Applications
  • Library and Information Sciences

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