Dependence modeling of bibliometric indicators with copulas

Tina Nane, Ashni Bachasingh

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Researchers’ academic output is frequently quantified by size and quality, and citation impact is frequently used as a proxy for quality. Bibliometric indicators of research output are often included in the periodical evaluations of researchers. In this article, we model the dependencies between several bibliometric indicators beyond the common correlation coefficients. We first investigate the behaviour of the correlation coefficients on different ranges of the distribution and emphasize the (lack) of tail dependence. Investigating the correlations for the division Social Sciences unveils intricate relationships between the indicators that emphasize the necessity of more sophisticated dependence modelling tools. We therefore propose copulas in order to account for complex dependency structures of pairs of indicators of 3574 researchers from Quebec. Bivariate parametric copulas that best fit the data are chosen and evaluated with respect to a goodness of fit test. Even though the performance of the parametric copulas is modest for the division Social Sciences, the methodology has an undoubtable merit and other parametric families or nonparametric copulas should definitely be further investigated.

Original languageEnglish
Title of host publication17th International Conference on Scientometrics and Informetrics, ISSI 2019 - Proceedings
EditorsGiuseppe Catalano, Cinzia Daraio, Martina Gregori, Henk F. Moed, Giancarlo Ruocco
PublisherInternational Society for Scientometrics and Informetrics
Pages2228-2239
Number of pages12
Volume2
ISBN (Electronic)9788833811185
Publication statusPublished - 2019
Event17th International Conference on Scientometrics and Informetrics, ISSI 2019 - Rome, Italy
Duration: 2 Sep 20195 Sep 2019

Conference

Conference17th International Conference on Scientometrics and Informetrics, ISSI 2019
CountryItaly
CityRome
Period2/09/195/09/19

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  • Cite this

    Nane, T., & Bachasingh, A. (2019). Dependence modeling of bibliometric indicators with copulas. In G. Catalano, C. Daraio, M. Gregori, H. F. Moed, & G. Ruocco (Eds.), 17th International Conference on Scientometrics and Informetrics, ISSI 2019 - Proceedings (Vol. 2, pp. 2228-2239). International Society for Scientometrics and Informetrics.