Interactive overlays of journals and the measurement of interdisciplinarity

Loet Leydesdorff, Ismael Rafols, Chaomei Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Document sets downloaded from the Web of Science can be projected onto global journal maps based on all journals contained in the Journal Citation Reports (JCR) of the Science and Social Science Citation Indices (2011). The disciplinary diversity of a downloaded set is then measured in terms of this map using Rao-Stirling's "quadratic entropy." Since this indicator of interdisciplinarity is normalized between zero and one, the interdisciplinarity of document sets can be compared among one another and across years, both cited and citing. The colors used for the overlays are based on Blondel et al.'s (2008) community-finding algorithms operating on the 10,000+ journals included in JCRs. The results can be exported from VOSViewer with different options such as proportional labels, heat maps, or cluster density maps. The maps can also be web-started and/or animated (e.g., using PowerPoint). The "citing" dimension of the aggregated journal-journal citation matrix was found to provide a more comprehensive description than the matrix based on the cited archive.

Original languageEnglish
Title of host publicationProceedings of ISSI 2013 - 14th International Society of Scientometrics and Informetrics Conference
Pages1037-1052
Number of pages16
Publication statusPublished - 2013 Dec 1
Event14th International Society of Scientometrics and Informetrics Conference, ISSI 2013 - Vienna, Austria
Duration: 2013 Jul 152013 Jul 20

Publication series

NameProceedings of ISSI 2013 - 14th International Society of Scientometrics and Informetrics Conference
Volume1

Other

Other14th International Society of Scientometrics and Informetrics Conference, ISSI 2013
CountryAustria
CityVienna
Period13/7/1513/7/20

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Management Science and Operations Research
  • Applied Mathematics
  • Modelling and Simulation
  • Statistics and Probability

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  • Cite this

    Leydesdorff, L., Rafols, I., & Chen, C. (2013). Interactive overlays of journals and the measurement of interdisciplinarity. In Proceedings of ISSI 2013 - 14th International Society of Scientometrics and Informetrics Conference (pp. 1037-1052). (Proceedings of ISSI 2013 - 14th International Society of Scientometrics and Informetrics Conference; Vol. 1).