Sørensen Similarity Index
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Sørensen Similarity Index

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High Quality Content by WIKIPEDIA articles! The Sørensen index, also known as Sørensen?s similarity coefficient, is a statistic used for comparing the similarity of two samples. It was developed by the botanist Thorvald Sørensen and published in 1948. The Sørensen coefficient is mainly useful for ecological community data (e.g. Looman & Campbell, 1960). Justification for its use is primarily empirical rather than theoretical (although it can be justified theoretically as the intersection of two fuzzy sets). As compared to Euclidean distance, Sørensen distance retains sensitivity in more h...