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On the Equivalence of Cohen’s Kappa and the Hubert-Arabie Adjusted Rand Index

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Abstract

It is shown that one can calculate the Hubert-Arabie adjusted Rand index by first forming the fourfold contingency table counting the number of pairs of objects that were placed in the same cluster in both partitions, in the same cluster in one partition but in different clusters in the other partition, and in different clusters in both, and then computing Cohen’s κ on this fourfold table.

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Correspondence to Matthijs J. Warrens.

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The author thanks Willem Heiser, Mark de Rooij, Marian Hickendorff and three anonymous reviewers for their helpful comments and valuable suggestions on earlier versions of this article.

Published online xx, xx, xxxx.

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Warrens, M.J. On the Equivalence of Cohen’s Kappa and the Hubert-Arabie Adjusted Rand Index. J Classif 25, 177–183 (2008). https://doi.org/10.1007/s00357-008-9023-7

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  • DOI: https://doi.org/10.1007/s00357-008-9023-7

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