Abstract
The h-index has attracted wide attention from both scientometricians and science policy makers since it was proposed in 2005. Advocates champion h-index for its simplicity embracing both quantity and quality, while also express concern about its abuse in research evaluation practices and database-dependence attribute. We argue that it is increasingly important to calculate and interpret the h-index precisely along with the rapid evolution of bibliographic databases. In memory of Dr. Judit Bar-Ilan, we join the h-index discussion in Scientometrics by further probing a similar “which h-index” question via comparing different versions of h-index within the Web of Science. In this article we put forward the reasons of different WoS h-indices from two perspectives, which are often neglected by bibliometric studies. We suggest that users should specify the details of data sources of h-index calculation for research promotion and evaluation practices.
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