Heuristics based on unit propagation for satisfiability problems

  • Authors:
  • Chu Min Li;Anbulagan Anbulagan

  • Affiliations:
  • LaRIA, Univ. de Picardie Jules Verne, Amiens Cédex, France;LaRIA, Univ. de Picardie Jules Verne, Amiens Cédex, France

  • Venue:
  • IJCAI'97 Proceedings of the 15th international joint conference on Artifical intelligence - Volume 1
  • Year:
  • 1997

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Abstract

The paper studies new unit propagation based heuristics for Davis-Putnam-Loveland (DPL) procedure. These are the novel combinations of unit propagation and the usual "Maximum Occurrences in clauses of Minimum Size" heuristics. Based on the experimental evaluations of different alternatives a new simple unit propagation based heuristic is put forward. This compares favorably with the heuristics employed in the current state-of-the-art DPL implementations (C-SAT, Tableau, POSIT).