Computation of Renameable Horn Backdoors

  • Stephan Kottler
  • Michael Kaufmann
  • Carsten Sinz
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4996)

Abstract

Satisfiability of real-world Sat instances can be often decided by focusing on a particular subset of variables - a so-called Backdoor Set. In this paper we suggest two algorithms to compute Renameable Horn deletion backdoors. Both methods are based on the idea to transform the computation into a graph problem. This approach could be used as a preprocessing to solve hard real-world Sat instances. We also give some experimental results of the computations of Renameable Horn backdoors for several real-world instances.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Stephan Kottler
    • 1
  • Michael Kaufmann
    • 1
  • Carsten Sinz
    • 1
  1. 1.Wilhelm–Schickard–InstituteEberhard Karls Universität TübingenTübingenGermany

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