Bibliographic coupling and hierarchical clustering for the validation and improvement of subject-classification schemes

Bart Thijs (), Lin Zhang and Wolfgang Glänzel
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Bart Thijs: KU Leuven
Lin Zhang: KU Leuven
Wolfgang Glänzel: KU Leuven

Scientometrics, 2015, vol. 105, issue 3, No 6, 1453-1467

Abstract: Abstract An attempt is made to cluster journals from the complete Web of Science database by using bibliographic coupling similarities. Since the sparseness of the underlying similarity matrix proved inappropriate for this exercise, second-order similarities have been used. Only 0.12 % out of 8282 journals had to be removed from the classification as being singletons. The quality at three hierarchical levels with 6, 14 and 24 clusters substantiated the applicability of this method. Cluster labelling was made on the basis of the about 70 subfields of the Leuven–Budapest subject-classification scheme that also allowed the comparison with the existing two-level journal classification system developed in Leuven. The further comparison with the 22 field classification system of the Essential Science Indicators does, however, reveal larger deviations.

Keywords: Bibliographic coupling; Journal clustering; Second order similarities; Subject classification (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (13)

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DOI: 10.1007/s11192-015-1641-3

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