From Belief Change to Preference Change

  • Authors:
  • Jé/rô/me Lang;Leendert van der Torre

  • Affiliations:
  • IRIT, Université/ Paul Sabatier, 31062 Toulouse, France/ lang@irit.fr;Université/ de Luxembourg/ leendert@vandertorre.com

  • Venue:
  • Proceedings of the 2008 conference on ECAI 2008: 18th European Conference on Artificial Intelligence
  • Year:
  • 2008

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Abstract

Various tasks need to consider preferences in a dynamic way. We start by discussing several possible meanings of preference change, and then focus on the one we think is the most natural: preferences evolving after some new fact has been learned. We define a family of such preference change operators, parameterized by a revision function on epistemic states and a semantics for interpreting preferences over formulas. We list some natural properties that this kind of preference change should fulfill and give conditions on the revision function and the semantics of preference for each of these properties to hold.