Probabilistic Planning in Hybrid Probabilistic Logic Programs

  • Authors:
  • Emad Saad

  • Affiliations:
  • College of Computer Science and Information Technology, Abu Dhabi University, Abu Dhabi, UAE,

  • Venue:
  • SUM '07 Proceedings of the 1st international conference on Scalable Uncertainty Management
  • Year:
  • 2007

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Abstract

In this paper, we present a new approach to probabilistic planning based on logic programming, by relating probabilistic planning to hybrid probabilistic logic programs with probabilistic answer set semantics [32]. We show that any probabilistic planning problem, $\cal P$, can be translated into a hybrid probabilistic logic program whose probabilistic answer sets correspond to trajectories in $\cal P$, with associated probabilities. We formally prove the correctness of our approach. Moreover, we show that the complexity of finding a plan for a probabilistic planning problem in our approach is NP-complete. In addition, we show that any probabilistic planning problem, $\cal P$, can be encoded as a classical logic program with answer set semantics, whose answer sets corresponds to valid trajectories in $\cal P$. We also show that probabilistic planning problems can be encoded as proportional satisfiability problems.