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Title: Classical retrieval and overlap measures such as Jaccard's coefficient, Salton's cosine measure and the Dice coefficient satisfy the requirements for rankings based upon a Lorenz curve.
Authors: EGGHE, Leo 
Issue Date: 2005
Abstract: Classical information retrieval and overlap measures such as the Jaccard index, the Dice coefficient and Salton's cosine measure can be characterized by Lorenz curves. This result demonstrates the existence of a link between information retrieval and the information sciences on the one hand, and concentration and diversity theory, as used, e.g., in social economics and ecology on the other.
Keywords: information retrieval; overlap studies; presence-absence data; Jaccard coefficient; Salton's cosine measure; Dice coefficient; Lorenz curves; Gini index
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Category: O
Type: Preprint
Appears in Collections:Research publications

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