Belief Revision with Bounded Treewidth

11 years 27 days ago
Belief Revision with Bounded Treewidth
Problems arising from the revision of propositional knowledge bases have been intensively studied for two decades. Many different approaches to revision have thus been suggested, with the ones by Dalal or Satoh being two of the most fundamental ones. As is well known, most computational tasks in this area are intractable. Therefore, in practical applications, one requires sufficient conditions under which revision problems become efficiently solvable. In this paper, we identify such tractable fragments for the reasoning and the enumeration problem exploiting the notion of treewidth. More specifically, we present new algorithms based on dynamic programming for these problems in Dalal’s setting and a tractability proof using Courcelle’s Theorem for Satoh’s approach.
Reinhard Pichler, Stefan Rümmele, Stefan Wolt
Added 27 May 2010
Updated 27 May 2010
Type Conference
Year 2009
Authors Reinhard Pichler, Stefan Rümmele, Stefan Woltran
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