The Rand index or Rand measure (named after William M. Rand) in statistics, and in particular in data clustering, is a similarity measure between two clusterings. It compares all pairs of elements and counts how often the two clusterings agree: either both place a pair in the same cluster, or both place the pair in different clusters.
The Rand index or Rand measure (named after William M. Rand) in statistics, and in particular in data clustering, is a similarity measure between two clusterings. It compares all pairs of elements and counts how often the two clusterings agree: either both place a pair in the same cluster, or both place the pair in different clusters.
Source: Wikipedia "Rand index" · CC BY-SA 4.0
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