The Jaccard index, also known as the Jaccard similarity coefficient (originally coined coefficient de communauté by Paul Jaccard), is a statistic used for comparing the similarity and diversity of sample sets.
Paul Jaccard (18 November 1868 in Sainte-Croix - 9 May 1944 in Zurich) was a professor of botany and plant physiology at the ETH Zurich.
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