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The h-index -- the value for which an individual has published at least h papers with at least h citations -- has become a popular metric to assess the citation impact of scientists. As already noted in the original work of Hirsch and as evidenced from data of a representative sample of physicists, sqrt{c} scales as h, where c is the total number citations to an individual. Thus sqrt{c} appears to be equivalent to the h index. As a further check of this equivalence, the distribution of the ratio s=sqrt{c}/2h for this sample is sharply peaked about 1. The outliers in this distribution reveal fundamentally different types of individual publication records.
[1] 魏屹东,et al. Scientometrics , 2018, Encyclopedia of Big Data.
[2] J. E. Hirsch,et al. An index to quantify an individual's scientific research output , 2005, Proc. Natl. Acad. Sci. USA.
[3] L. Egghe,et al. Theory and practise of the g-index , 2006, Scientometrics.
[4] J. M. Oshorn. Proc. Nat. Acad. Sei , 1978 .