On detecting differences between groups

  • Authors:
  • Geoffrey I. Webb;Shane Butler;Douglas Newlands

  • Affiliations:
  • Monash University, Clayton, Vic., Australia;Monash University, Clayton, Vic., Australia;Deakin University, Geelong, Vic., Australia

  • Venue:
  • Proceedings of the ninth ACM SIGKDD international conference on Knowledge discovery and data mining
  • Year:
  • 2003

Quantified Score

Hi-index 0.00

Visualization

Abstract

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 observed 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.