Egghe, L; Rao, IKR Study of different h-indices for groups of authors JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, 59 (8): 1276-1281 JUN 2008

[Eugene Garfield]

Email Address: leo.egghe at uhasselt.be

Author(s): Egghe, L (Egghe, L.); Rao, IKR (Rao, I. K. Ravichandra) 

Title: Study of different h-indices for groups of authors 

Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND 
TECHNOLOGY, 59 (8): 1276-1281 JUN 2008 

Language: English 

Document Type: Article 

Keywords Plus: SCIENTIFIC-RESEARCH OUTPUT; HIRSCH-TYPE INDEXES; 
BIBLIOMETRIC INDICATORS; JOURNALS; RANKING 

Abstract: In this article, for any group of authors, we define three 
different h-indices. First, there is the successive h-index h(2) based on 
the ranked list of authors and their h-indices h, as defined by Schubert 
(2007). Next, there is the h-index hp based on the ranked list of authors 
and their number of publications. Finally, there is the h-index h(c) based 
on the ranked list of authors and their number of citations. We present 
formulae for these three indices in Lotkaian informetrics from which it 
also follows that h(2) < h(p) < h(c). We give a concrete example of a 
group of 167 authors on the topic "optical flow estimation." Besides these 
three h-indices, we also calculate the two-by-two Spearman rank 
correlation coefficient and prove that these rankings are significantly 
related. 

Addresses: Univ Hasselt, B-3590 Diepenbeek, Belgium; Univ Instelling 
Antwerp, B-2610 Antwerp, Belgium; ISI, Bangalore 560059, Karnataka, India 

Reprint Address: Egghe, L, Univ Hasselt, Campus Diepenbeek, B-3590 
Diepenbeek, Belgium.
 
Cited Reference Count: 39 

Times Cited: 0 

Publisher: JOHN WILEY & SONS INC 

Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA 

ISSN: 1532-2882 

29-char Source Abbrev.: J AM SOC INF SCI TECHNOL 

ISO Source Abbrev.: J. Am. Soc. Inf. Sci. Technol. 

Source Item Page Count: 6 

Subject Category: Computer Science, Information Systems; Information 
Science & Library Science 

ISI Document Delivery No.: 305LF 

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