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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/25044
Title: 
Power-law distributions for the citation index of scientific publications and scientists
Author(s): 
Institution: 
Universidade Estadual Paulista (UNESP)
ISSN: 
0103-9733
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.
Issue Date: 
1-Dec-2005
Citation: 
Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 35, n. 4a, p. 981-986, 2005.
Time Duration: 
981-986
Publisher: 
Sociedade Brasileira de Física
Source: 
http://dx.doi.org/10.1590/S0103-97332005000600012
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/25044
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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