Specifying fuzzy constraints interactions without using aggregation operators

João Moura-Pires, Henri M. Pradé

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

A tuple of fuzzy constraints defined on a discrete satisfaction scale defines a lattice structure, called relaxation space, made of the tuples of level cuts of the fuzzy constraints, equipped with the partial order induced by the scale ordering. Then choosing a way of combining the fuzzy constraints has two joint effects: usually a completion of the ordering between tuples of levels, and possibly a simplification of the relaxation space (by eliminating subsumed tuples corresponding to the same level of global satisfaction). The paper investigates the possibility of specifying the ordering between tuples of level cuts constraints on a simplified relaxation space, without resorting to the use of explicit aggregation operations. The idea is to elicitate the preferences between the tuples of constraints representing various relaxations of the set of fuzzy constraints, directly from the user. How to express these preferences in a local manner is also discussed.

Original languageEnglish
Title of host publicationNINTH IEEE INTERNATIONAL CONFERENCE ON FUZZY SYSTEMS (FUZZ-IEEE 2000)
PublisherIEEE
Pages228-233
Number of pages6
Volume1
ISBN (Print)0-7803-5878-3
Publication statusPublished - 1 Jan 2000
EventFUZZ-IEEE 2000: 9th IEEE International Conference on Fuzzy Systems - San Antonio, TX, USA
Duration: 7 May 200010 May 2000

Conference

ConferenceFUZZ-IEEE 2000: 9th IEEE International Conference on Fuzzy Systems
CitySan Antonio, TX, USA
Period7/05/0010/05/00

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Moura-Pires, J., & Pradé, H. M. (2000). Specifying fuzzy constraints interactions without using aggregation operators. In NINTH IEEE INTERNATIONAL CONFERENCE ON FUZZY SYSTEMS (FUZZ-IEEE 2000) (Vol. 1, pp. 228-233). IEEE.