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

Wolfgang Glänzel (), András Schubert, Bart Thijs and Koenraad Debackere
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Wolfgang Glänzel: Katholieke Universiteit Leuven
András Schubert: Hungarian Academy of Sciences, Institute for Research Policy Studies
Bart Thijs: Katholieke Universiteit Leuven
Koenraad Debackere: Katholieke Universiteit Leuven

Scientometrics, 2011, vol. 87, issue 2, No 15, 415-424

Abstract: 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.

Keywords: Citation measures; Normalisation; Journal impact measures; Journal ranking; Characteristic scores and scales (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (20)

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DOI: 10.1007/s11192-011-0345-6

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