Title
Real and rational variants of the **h**-index and the **g**-indexReal and rational variants of the **h**-index and the **g**-index
Author
Faculty/Department
Faculty of Social Sciences. Instructional and Educational Sciences
Research group
Book, Library and Information
Information, Emancipation and Development
Publication type
article
Publication
Amsterdam,
Subject
Documentation and information
Computer. Automation
Source (journal)
Journal of informetrics. - Amsterdam
Volume/pages
3(2009):1, p. 64-71
ISSN
1751-1577
ISI
000262496700006
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The definitions of the rational and real-valued variants of the h-index and g-index are reviewed. It is shown how they can be obtained both graphically and by calculation. Formulae are derived expressing the exact relations between the h-variants and between the g-variants. Subsequently these relations are examined. In a citation context the real h-index is often, but not always, smaller than the rational h-index. It is also shown that the relation between the real and the rational g-index depends on the number of citations of the article ranked g + 1. Maximum differences between h, hr and hrat on the one hand and between g, gr and grat on the other are determined.
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