4.2 Article

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

Journal

JOURNAL OF CLASSIFICATION
Volume 25, Issue 2, Pages 177-183

Publisher

SPRINGER
DOI: 10.1007/s00357-008-9023-7

Keywords

Correction for chance agreement; Partitions; Clustering method; Matching table; Simple matching coefficient; Similarity indices; Resemblance measures

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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 kappa on this fourfold table.

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