Experimental comparison of first and second-order similarities in a scientometric context

Cristian Colliander () and Per Ahlgren
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Cristian Colliander: Umeå University
Per Ahlgren: Umeå University

Scientometrics, 2012, vol. 90, issue 2, No 22, 675-685

Abstract: Abstract The measurement of similarity between objects plays a role in several scientific areas. In this article, we deal with document–document similarity in a scientometric context. We compare experimentally, using a large dataset, first-order with second-order similarities with respect to the overall quality of partitions of the dataset, where the partitions are obtained on the basis of optimizing weighted modularity. The quality of a partition is defined in terms of textual coherence. The results show that the second-order approach consistently outperforms the first-order approach. Each difference between the two approaches in overall partition quality values is significant at the 0.01 level.

Keywords: Bibliographic coupling; Cluster analysis; Document–document similarity; Science mapping; Similarity order; Textual coherence (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1007/s11192-011-0491-x

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