Gupta HM, Campanha JR, Pesce RAG "Power-law distributions for the citation index of scientific publications and scientists " Brazilian J. of Physics 35 (4A): 981-986 DEC 2005

[Eugene Garfield]

These authors appear to be totally oblivious to the literature on this
subject from Derek Price onwards!

Full text available at : http://www.sbfisica.org.br/bjp/files/v35_981.pdf

e-mail : Jose R. Campanha : campanha at rc.unesp.br

Title: Power-law distributions for the citation index of scientific
publications and scientists

Author(s): Gupta HM, Campanha JR, Pesce RAG

Source: BRAZILIAN JOURNAL OF PHYSICS 35 (4A): 981-986 DEC 2005

Document Type: Article
Language: English
Cited References: 42      Times Cited: 0

Abstract: The number of citations of a scientific publication or of an
individual scientist has become an important factor of quality assessment
in science. We report a study of the statistical distribution of the
citation index of both scientific publications and scientists. We give
numerical evidence that Tsallis (power law) statistics explains the entire
distribution over eight orders of magnitude (10(-4) to 10(4)). Also, we
draw Zipf plots in order to analyze the statistical distribution of the
citation index of Brazilian and international physicists and chemists. The
relatively small group of Brazilian scientists seems more adequate to
explain the dynamics of the citation index. In this case, we find that the
distribution of the citation index can also be explained by a gradually
truncated power law with similar parameters. We finally discuss possible
mechanisms behind the citation index of scientists and scientific
publications.


Addresses: Gupta HM (reprint author), UNESP, Inst Geociencias & Ciencias
Exatas, Dept Fis, Caixa Postal 178, Rio Claro, SP BR-13500970 Brazil
UNESP, Inst Geociencias & Ciencias Exatas, Dept Fis, Rio Claro, SP BR-
13500970 Brazil

Publisher: SOCIEDADE BRASILEIRA FISICA, CAIXA POSTAL 66328, 05315-970 SAO
PAULO, BRAZIL
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: 995ZE
ISSN: 0103-9733


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