jaccard index

What is the Jaccard Index?

The Jaccard Index quantifies the similarity between two sets of data. It is defined as the size of the intersection divided by the size of the union of the sample sets. Mathematically, it can be expressed as:
J(A, B) = |A ∩ B| / |A ∪ B|
where A and B are two sets, |A ∩ B| is the number of elements in both sets, and |A ∪ B| is the number of elements in either set.

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