Power-law distributions for the citation index of scientific publications and scientists
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , |
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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Repositório Institucional da UNESP |
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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 0,276 |
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 |
|
_version_ |
1808129043374014464 |