Evolutionary Biological Data Science Laboratory

R-index

The R-index (Jin et al. 2007) is a measure of the quality of the h-index core, designed to avoid punishing scientists with larger cores. As a simple arithmetic average, the a-index has the size of the core in the divisor and therefore can lead to smaller values for scientists with much larger cores than those with much smaller cores (this is not an issue if the indices are only being used to compare those with similar sized cores). The R-index is the square-root of the citations in the core rather than average:

$$R=\sqrt{C^H}=\sqrt{\sum\limits_{i=1}^{h}{C_i}}.$$

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