Webb, Geoffrey, Butler, Douglas and Newlands, Douglas 2003, On detecting differences between groups, in KDD-2003 : proceedings of the Ninth ACM SIGKDD International Conference on Knowledge Discovery and Data Mining : August 24-27, 2003, Washington, D.C., Association for Computing Machinery, New York, N.Y., pp. 256-265.
Understanding the differences between contrasting groups is a fundamental task in data analysis. This realization has led to the development of a new special purpose data mining technique, contrast-set mining. We undertook a study with a retail collaborator to compare contrast-set mining with existing rule-discovery techniques. To our surprise we ob- served that straightforward application of an existing commercial rule-discovery system, Magnum Opus, could successfully perform the contrast-set-mining task. This led to the realization that contrast-set mining is a special case of the more general rule-discovery task. We present the results of our study together with a proof of this conclusion.
Field of Research
080605 Decision Support and Group Support Systems
Socio Economic Objective
970108 Expanding Knowledge in the Information and Computing Sciences
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