An informetric model for the Hirsch-index

被引:291
|
作者
Egghe, Leo
Rousseau, Ronald
机构
[1] Hasselt Univ, B-3590 Diepenbeek, Belgium
[2] Univ Antwerp, IBW, Antwerp, Belgium
[3] KHBO, Ind Sci & Technol, Oostende, Belgium
关键词
D O I
10.1007/s11192-006-0143-8
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
The h-index (or Hirsch-index) was defined by Hirsch in 2005 as the number h such that, for a general group of papers, h papers received at least h citations while the other papers received no more than h citations. This definition is extended here to the general framework of Information Production Processes (IPPs), using a source-item terminology. It is further shown that in each practical situation an IPP always has a unique h-index. In Lotkaian systems h = T-1/alpha, where T is the total number of sources and alpha is the Lotka exponent. The relation between h and the total number of items is highlighted.
引用
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页码:121 / 129
页数:9
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