Goal change

  • Authors:
  • Steven Shapiro;Yves Lespérance;Hector J. Levesque

  • Affiliations:
  • Computer Science Inst., University of Leipzig, Leipzig, Germany;Dept. of Computer Science, York University, Toronto, ON, Canada;Dept. of Computer Science, University of Toronto, Toronto, ON, Canada

  • Venue:
  • IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
  • Year:
  • 2005

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Abstract

Although there has been much discussion of belief change (e.g., [Gärdenfors, 1988; Spohn, 1988]), goal change has not received much attention. In this paper, we propose a method for goal change in the framework of Reiter's [2001] theory of action in the situation calculus [McCarthy and Hayes, 1969; Levesque et al., 1998], and investigate its properties. We extend the framework developed by Shapiro et al. [1998] and Shapiro and Lespérance [2001], where goals and goal expansion were modelled, but goal contraction was not.