Incremental pruning: a simple, fast, exact method for partially observable Markov decision processes

  • Authors:
  • Anthony Cassandra;Michael L. Littman;Nevin L. Zhang

  • Affiliations:
  • Computer Science Dept., Brown University, Providence, RI;Dept. of Computer Science, Duke University, Durham, NC;Computer Science Dept., The Hong Kong U. of Sci. & Tech., Kowloon, HK

  • Venue:
  • UAI'97 Proceedings of the Thirteenth conference on Uncertainty in artificial intelligence
  • Year:
  • 1997

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Abstract

Most exact algorithms for general partially observable Markov decision processes (POMDPs) use a form of dynamic programming in which a piecewise-linear and convex representation of one value function is transformed into another. We examine variations of the "incremental pruning" method for solving this problem and compare them to earlier algorithms from theoretical and empirical perspectives. We find that incremental pruning is presently the most efficient exact method for solving POMDPS.