Abductive framework for nonmonotonic theory change

  • Authors:
  • Katsumi Inoue;Chiaki Sakama

  • Affiliations:
  • Department of Information and Computer Sciences, Toyohashi University of Technology, Toyohashi, Japan;Department of Computer and Communication Science, Wakayama University, Wakayama, Japan

  • Venue:
  • IJCAI'95 Proceedings of the 14th international joint conference on Artificial intelligence - Volume 1
  • Year:
  • 1995

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Abstract

This paper proposes a method of nonmonotonic theory change. We first introduce a new form of abduction that can account for observations in nonmonotonic situation. Then we provide a framework of autoepistemic update, which describes nonmonotonic theory change through the extended abductive framework. The proposed update semantics is fairly general and provides a unified framework for various update semantics such as first-order update, view update of databases, and contradiction removal of nonmonotonic theories.