Title
A mathematical characterization of the Hirsch-index by means of minimal incrementsA mathematical characterization of the Hirsch-index by means of minimal increments
Author
Faculty/Department
Faculty of Social Sciences. Instructional and Educational Sciences
Research group
Book, Library and Information
Publication type
article
Publication
Amsterdam,
Subject
Documentation and information
Source (journal)
Journal of informetrics. - Amsterdam
Volume/pages
7(2013):2, p. 388-393
ISSN
1751-1577
ISI
000318377100016
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The minimum configuration to have a h-index equal to h is h papers each having h citations, hence h(2) citations in total. To increase the h-index to h + 1 we minimally need (h + 1)(2) citations, an increment of I-1(h) = 2h + 1. The latter number increases with 2 per unit increase of h. This increment of the second order is denoted I-2(h) =2. If we define I-1 and I-2 for a general Hirsch configuration (say n papers each having f(n) citations) we calculate I-1(f) and I-2(f) similarly as for the h-index. We characterize all functions f for which I-2(f) = 2 and show that this can be obtained for functions f(n) different from the h-index. We show that f(n) = n (i.e. the h-index) if and only if I-2(f) = 2, f(1) = 1 and f(2) = 2. We give a similar characterization for the threshold index (where n papers have a constant number C of citations). Here we deal with second order increments I-2(f) = 0. (c) 2013 Elsevier Ltd. All rights reserved.
E-info
https://repository.uantwerpen.be/docman/iruaauth/c5974d/af44099.pdf
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