Document (#35125)

Author

Egghe, L.

Title

¬A rationale for the Hirsch-index rank-order distribution and a comparison with the impact factor rank-order distribution

Source

Journal of the American Society for Information Science and Technology. 60(2009) no.10, S.2142-2144

Year

2009

Abstract

We present a rationale for the Hirsch-index rank-order distribution and prove that it is a power law (hence a straight line in the log-log scale). This is confirmed by experimental data of Pyykkö and by data produced in this article on 206 mathematics journals. This distribution is of a completely different nature than the impact factor (IF) rank-order distribution which (as proved in a previous article) is S-shaped. This is also confirmed by our example. Only in the log-log scale of the h-index distribution do we notice a concave deviation of the straight line for higher ranks. This phenomenon is discussed.

Theme

Informetrie

Object

h-index

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