![]() Collective strength gives 0 for perfectly negative correlated items, infinity for perfectly positive correlated items, and 1 if the items co-occur as expected under independence. The violation rate is defined as the fraction of transactions that contain some of the items in an itemset but not all. Where \(v(X)\) is the violation rate and \(E\) is the expected violation rate for independent items. Agrawal, Imielinski, and Swami (1993) introduced the problem of association rule mining in the following way: This document contains a collection of commonly used measures of significance and interestingness (sometimes also called strength) for association rules and itemsets. ![]()
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