On two qualitative approaches to tolerant inclusion operators

  • Authors:
  • P. Bosc;O. Pivert

  • Affiliations:
  • IRISA/ENSSAT, Technopole ANTICIPA BP 80518, 22305 Lannion, Cedex, France;IRISA/ENSSAT, Technopole ANTICIPA BP 80518, 22305 Lannion, Cedex, France

  • Venue:
  • Fuzzy Sets and Systems
  • Year:
  • 2008

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Abstract

This paper is devoted to two extensions of the inclusion operator. The general idea advocated here is the tolerance for qualitative exceptions, which leads to the definition of a tolerant inclusion. The strategy proposed is founded on the (graded) allowance for low-intensity exceptions. Two approaches are presented and discussed in terms of properties and their use for database flexible querying serves as an illustration.