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

Detalhes bibliográficos
Autor(a) principal: Gupta, Hari M. [UNESP]
Data de Publicação: 2005
Outros Autores: Campanha, José R. [UNESP], Pesce, Rosana A. G. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0103-97332005000600012
http://hdl.handle.net/11449/25044
Resumo: 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.
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spelling Power-law distributions for the citation index of scientific publications and scientistsThe 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.UNESP Instituto de Geociências e Ciências Exatas Departamento de FísicaUNESP Instituto de Geociências e Ciências Exatas Departamento de FísicaSociedade Brasileira de FísicaUniversidade Estadual Paulista (Unesp)Gupta, Hari M. [UNESP]Campanha, José R. [UNESP]Pesce, Rosana A. G. [UNESP]2013-09-30T18:51:07Z2014-05-20T14:16:48Z2013-09-30T18:51:07Z2014-05-20T14:16:48Z2005-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article981-986application/pdfhttp://dx.doi.org/10.1590/S0103-97332005000600012Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 35, n. 4a, p. 981-986, 2005.0103-9733http://hdl.handle.net/11449/2504410.1590/S0103-97332005000600012S0103-97332005000600012S0103-97332005000600012.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Physics1.0820,276info:eu-repo/semantics/openAccess2023-12-01T06:20:02Zoai:repositorio.unesp.br:11449/25044Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:15:43.868390Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Power-law distributions for the citation index of scientific publications and scientists
title Power-law distributions for the citation index of scientific publications and scientists
spellingShingle Power-law distributions for the citation index of scientific publications and scientists
Gupta, Hari M. [UNESP]
title_short Power-law distributions for the citation index of scientific publications and scientists
title_full Power-law distributions for the citation index of scientific publications and scientists
title_fullStr Power-law distributions for the citation index of scientific publications and scientists
title_full_unstemmed Power-law distributions for the citation index of scientific publications and scientists
title_sort Power-law distributions for the citation index of scientific publications and scientists
author Gupta, Hari M. [UNESP]
author_facet Gupta, Hari M. [UNESP]
Campanha, José R. [UNESP]
Pesce, Rosana A. G. [UNESP]
author_role author
author2 Campanha, José R. [UNESP]
Pesce, Rosana A. G. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Gupta, Hari M. [UNESP]
Campanha, José R. [UNESP]
Pesce, Rosana A. G. [UNESP]
description 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.
publishDate 2005
dc.date.none.fl_str_mv 2005-12-01
2013-09-30T18:51:07Z
2013-09-30T18:51:07Z
2014-05-20T14:16:48Z
2014-05-20T14:16:48Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0103-97332005000600012
Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 35, n. 4a, p. 981-986, 2005.
0103-9733
http://hdl.handle.net/11449/25044
10.1590/S0103-97332005000600012
S0103-97332005000600012
S0103-97332005000600012.pdf
url http://dx.doi.org/10.1590/S0103-97332005000600012
http://hdl.handle.net/11449/25044
identifier_str_mv Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 35, n. 4a, p. 981-986, 2005.
0103-9733
10.1590/S0103-97332005000600012
S0103-97332005000600012
S0103-97332005000600012.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Journal of Physics
1.082
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 981-986
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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