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arXiv · 1006.5621

Better algorithms for satisfiability problems for formulas of bounded rank-width

Robert Ganian·Petr Hliněný·Jan Obdržálek
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Abstract

We provide a parameterized polynomial algorithm for the propositional model counting problem #SAT, the runtime of which is single-exponential in the rank-width of a formula. Previously, analogous algorithms have been known -- e.g.~[Fischer, Makowsky, and Ravve] -- with a single-exponential dependency on the clique-width of a formula. Our algorithm thus presents an exponential runtime improvement (since clique-width reaches up to exponentially higher values than rank-width), and can be of practical interest for small values of rank-width. We also provide an algorithm for the MAX-SAT problem along the same lines.

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Robert Ganian, Petr Hliněný, Jan Obdržálek. 2010-06-29. Better algorithms for satisfiability problems for formulas of bounded rank-width. https://arxiv.org/abs/1006.5621

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