Radicchi F, Castellano C. Testing the fairness of citation indicators for comparison across scientific domains: the case of fractional citation counts. Journal of Informetrics 2012;6(1):121-130
The use of raw citation counts is generally misleading, especially when applied to cross-disciplinary comparisons, since the average number of citations is strongly dependent on the scientific discipline of reference of the article. The authors present a statistical method aimed at estimating the effectiveness of numerical indicators in eliminating citation biases. The method is simple to implement and can be easily generalized to various scenarios.