On a fuzzy bipolar relational algebra

Authors:
Patrick Bosc;Olivier Pivert
Affiliations:
IRISA/ENSSAT, University of Rennes 1, 6, Rue de Kerampont, BP 80518, 22305 Lannion Cedex, France;IRISA/ENSSAT, University of Rennes 1, 6, Rue de Kerampont, BP 80518, 22305 Lannion Cedex, France
Venue:
Information Sciences: an International Journal
Year:
2013

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Abstract

This paper presents an extension of relational algebra suitable for the handling of bipolar concepts. The type of queries considered involves two parts: a first one which expresses a (possibly flexible) constraint, and a second one that corresponds to a (possibly flexible) wish. The framework considered is that of bipolar fuzzy relations where each tuple is associated with a pair of satisfaction degrees.