GRAANK: Exploiting Rank Correlations for Extracting Gradual Itemsets

  • Authors:
  • Anne Laurent;Marie-Jeanne Lesot;Maria Rifqi

  • Affiliations:
  • LIRMM, Univ. Montpellier 2 - CNRS UMR 5506, Montpellier, France 34 095;LIP6, UPMC - CNRS UMR 7606, Paris, France 75016;LIP6, UPMC - CNRS UMR 7606, Paris, France 75016

  • Venue:
  • FQAS '09 Proceedings of the 8th International Conference on Flexible Query Answering Systems
  • Year:
  • 2009

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Abstract

Gradual dependencies of the form the more A, the more B offer valuable information that linguistically express relationships between variations of the attributes. Several formalisations and automatic extraction algorithms have been proposed recently. In this paper, we first present an overview of these methods. We then propose an algorithm that combines the principles of several existing approaches and benefits from efficient computational properties to extract frequent gradual itemsets.