Author: M. Zitt 1 , 2
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  • 1 Lereco U-1134, SAE2 Department, INRA, Nantes, France
  • | 2 Observatoire des Sciences et des Techniques (OST), Paris, France
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Abstract

A new family of citation normalization methods appeared recently, in addition to the classical methods of “cited-side” normalization and the iterative measures of intellectual influence in the wake of Pinski and Narin influence weights. These methods have a quite global scope in citation analysis but were first applied to the journal impact, in the experimental Audience Factor (AF) and the Scopus Source-Normalized Impact per Paper (SNIP). Analyzing some properties of the Garfield's Journal Impact Factor, this note highlights the rationale of citing-side (or source-level, fractional citation, ex ante) normalization.

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