An expected utility-based approach for mining action rules

  • Authors:
  • Peng Su;Dunfeng Li;Kun Su

  • Affiliations:
  • Shandong Jianzhu University;Shandong University at Weihai;Shandong University at Weihai

  • Venue:
  • Proceedings of the ACM SIGKDD Workshop on Intelligence and Security Informatics
  • Year:
  • 2012

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Abstract

One of the central issues in data mining community is to make the mined patterns actionable. Action rules are those actionable patterns, which provide hints to a user what actions (i.e., changes within some values of flexible attributes) should be taken to reclassify some objects from an undesired decision class to a desired one. Both changing the value of a flexible attribute and the corresponding change of the value of a decision attribute may incur cost (negative utility) or bring benefit (positive utility) for the user. Obviously, the user is more interested in the rules which are expected to bring higher utility. In this paper, we formally define the expected utility of an action rule for measuring its interestingness. Our definitions explicitly state the problem of mining action rules as a search problem in a framework of support and expected utility. We also propose an effective algorithm for mining action rules with higher expected utilities. Our experiment shows the usefulness of the proposed approach.