, Volume 98, Issue 2, pp 1397–1399 | Cite as

A note on the Jaccardized Czekanowski similarity index

  • András Schubert
  • András Telcs


It is shown that the “Jaccardized Czekanowski index” is actually a reinterpretation of the Ružička index. Thereby, it is proved that its one-complement is a true distance function, which makes it particularly suitable for use in similarity studies even with multidimensional statistical techniques.


Similarity index Distance funcion 



András Schubert was supported by the European Commission under the FP7 Science in Society Grant No. 266588 (SISOB project) and by the grant TÁMOP-4.2.5.A-11/1-2012-0001 (MTMT2 project). On behalf of András Telcs this article was made under the project TÁMOP-4.2.2/B-10/1-2010-0025. This project is supported by the European Union and co-financed by the European Social Fund.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2013

Authors and Affiliations

  1. 1.Department of Science Policy and ScientometricsLibrary and Information Center of the Hungarian Academy of SciencesBudapestHungary
  2. 2.Department of Computer Science and Information TheoryBudapest University of Technology and EconomicsBudapestHungary
  3. 3.Department of Quantitative Methods, Faculty of EconomicsPannon UniversityVeszprémHungary

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