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Interactive overlays: A new method for generating global journal maps from Web-of-Science data

Loet Leydesdorff () and Ismael Rafols ()

Journal of Informetrics, 2012, vol. 6, issue 2, 318-332

Abstract: Recent advances in methods and techniques enable us to develop interactive overlays to a global map of science based on aggregated citation relations among the 9162 journals contained in the Science Citation Index and Social Science Citation Index 2009. We first discuss the pros and cons of the various options: cited versus citing, multidimensional scaling versus spring-embedded algorithms, VOSViewer versus Gephi, and the various clustering algorithms and similarity criteria. Our approach focuses on the positions of journals in the multidimensional space spanned by the aggregated journal–journal citations. Using VOSViewer for the resulting mapping, a number of choices can be left to the user; we provide default options reflecting our preferences. Some examples are also provided; for example, the potential of using this technique to assess the interdisciplinarity of organizations and/or document sets.

Keywords: Map; Journal; Overlay; VOSViewer; Gephi (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1016/j.joi.2011.11.003

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