Preference modeling by rectangular bilattices

Authors:
Ofer Arieli;Chris Cornelis;Glad Deschrijver
Affiliations:
Department of Computer Science, The Academic College of Tel-Aviv, Israel;Fuzziness and Uncertainty Modeling Research Unit, Department of Mathematics and Computer Science, Ghent University, Belgium;Fuzziness and Uncertainty Modeling Research Unit, Department of Mathematics and Computer Science, Ghent University, Belgium
Venue:
MDAI'06 Proceedings of the Third international conference on Modeling Decisions for Artificial Intelligence
Year:
2006

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Abstract

Many realistic decision aid problems are fraught with facets of ambiguity, uncertainty and conflict, which hamper the effectiveness of conventional and fuzzy preference modeling approaches, and command the use of more expressive representations. In the past, some authors have already identified Ginsberg's/Fitting's theory of bilattices as a naturally attractive candidate framework for representing uncertain and potentially conflicting preferences, yet none of the existing approaches addresses the real expressive power of bilattices, which lies hidden in their associated truth and knowledge orders. As a consequence, these approaches have to incorporate additional conventions and ‘tricks' into their modus operandi, making the results unintuitive and/or tedious. By contrast, the aim of this paper is to demonstrate the potential of (rectangular) bilattices in encoding not just the problem statement, but also its generic solution strategy.