The concept of approximation based on fuzzy dominance relation in decision-making

  • Authors:

  • Yunxiang Liu;Jigui Sun;Shengsheng Wang

  • Affiliations:

  • Institute of Computer Science, Jinlin University, Changchun and Changchun Institute of Technology, Changchun;Institute of Computer Science, Jinlin University, Changchun;Institute of Computer Science, Jinlin University, Changchun

  • Venue:
  • RSFDGrC'03 Proceedings of the 9th international conference on Rough sets, fuzzy sets, data mining, and granular computing
  • Year:
  • 2003

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Abstract

The method for decision-making system that derives from the combination of rough sets and fuzzy sets has been presented, discussing a multicriteria classification that differs from usual classification problems, the main change is the substitution of the indiscernibility relation by a dominance relation. Proposing the idea of fuzzy dominance relation for decision-making, and the concept of L-fuzzy set is given. It builds up a rough approximation of upward and downward cumulated sets by fuzzy dominance relation.