Pushing random walk beyond golden ratio

  • Authors:
  • Ehsan Amiri;Evgeny Skvortsov

  • Affiliations:
  • School of Computing Science, Simon Fraser University, Burnaby, Canada;School of Computing Science, Simon Fraser University, Burnaby, Canada

  • Venue:
  • CSR'07 Proceedings of the Second international conference on Computer Science: theory and applications
  • Year:
  • 2007

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Abstract

We propose a simple modification of a well-known Random Walk algorithm for solving the Satisfiability problem and analyze its performance on random CNFs with a planted solution. We rigorously prove that the new algorithm solves the Full CNF with high probability, and for random CNFs with a planted solution of high density finds an assignment that differs from the planted in only e-fraction of variables. In the experiments the algorithm solves random CNFs with a planted solution of any density.