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» Finding Small Backdoors in SAT Instances
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AI
2011
Springer
12 years 8 months ago
Finding Small Backdoors in SAT Instances
Although propositional satisfiability (SAT) is NP-complete, state-of-the-art SAT solvers are able to solve large, practical instances. The concept of backdoors has been introduced...
Zijie Li, Peter van Beek
AAAI
2008
13 years 7 months ago
Backdoor Trees
The surprisingly good performance of modern satisfiability (SAT) solvers is usually explained by the existence of a certain "hidden structure" in real-world instances. W...
Marko Samer, Stefan Szeider
CP
2008
Springer
13 years 6 months ago
A New Empirical Study of Weak Backdoors
Abstract. Work by Kilby, Slaney, Thiebaux and Walsh [1] showed that the backdoors and backbones of unstructured Random 3SAT instances are largely disjoint. In this work we extend t...
Peter Gregory, Maria Fox, Derek Long
DCG
2000
94views more  DCG 2000»
13 years 4 months ago
Finding Small Triangulations of Polytope Boundaries Is Hard
We prove that it is NP-hard to decide whether a polyhedral 3-ball can be triangulated with k simplices. The construction also implies that it is difficult to find the minimal trian...
Jürgen Richter-Gebert
AAAI
2000
13 years 6 months ago
Redundancy in Random SAT Formulas
The random k-SAT model is extensively used to compare satisfiability algorithms or to find the best settings for the parameters of some algorithm. Conclusions are derived from the...
Yacine Boufkhad, Olivier Roussel