Construction of global fuzzy preference structures from two-parameter single-criterion fuzzy outranking relations

  • Authors:
  • Razvan Gheorghe;Ahmed Bufardi;Paul Xirouchakis

  • Affiliations:
  • LICP-IPR-STI, Swiss Federal Institute of Technology (EPFL), 1015 Lausanne, Switzerland;LICP-IPR-STI, Swiss Federal Institute of Technology (EPFL), 1015 Lausanne, Switzerland;LICP-IPR-STI, Swiss Federal Institute of Technology (EPFL), 1015 Lausanne, Switzerland

  • Venue:
  • Fuzzy Sets and Systems
  • Year:
  • 2005

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Abstract

In this paper we deal with the construction of global fuzzy preference structures from two-parameter single-criterion fuzzy outranking relations proposed in [10] and which are based on the aggregation of outranking indices associated with @a-cuts. We consider two ways of constructing global fuzzy preference structures: (i) aggregate the two-parameter single-criterion fuzzy outranking relations and then construct the global fuzzy preference structures and (ii) construct global fuzzy preference structures and then aggregate the single-criterion fuzzy preference, indifference and incomparability relations. We also investigate the case where these two ways of proceeding lead to the same results.