AND/OR cutset conditioning

  • Authors:
  • Robert Mateescu;Rina Dechter

  • Affiliations:
  • School of Information and Computer Science, University of California, Irvine, CA;School of Information and Computer Science, University of California, Irvine, CA

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

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Abstract

Cutset conditioning is one of the methods of solving reasoning tasks for graphical models, especially when space restrictions make inference (e.g., jointree-clustering) algorithms infeasible. The w-cutset is a natural extension of the method to a hybrid algorithm that performs search on the conditioning variables and inference on the remaining problems of induced width bounded by w. This paper takes a fresh look at these methods through the spectrum of AND/OR search spaces for graphical models. The resulting AND/OR cutset method is a strict improvement over the traditional one, often by exponential amounts.