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JSAT
2006
83views more  JSAT 2006»
13 years 11 months ago
Report of the Third QBF Solvers Evaluation
This paper reports about the 2005 comparative evaluation of solvers for quantified Boolean formulas (QBFs), the third in a series of non-competitive events established with the ai...
Massimo Narizzano, Luca Pulina, Armando Tacchella
JSAT
2006
91views more  JSAT 2006»
13 years 11 months ago
Extending Existential Quantification in Conjunctions of BDDs
Abstract. We introduce new approaches intended to speed up determining the satisfiability of a given Boolean formula expressed as a conjunction of Boolean functions. A common prac...
Sean Weaver, John V. Franco, John S. Schlipf
JSAT
2006
114views more  JSAT 2006»
13 years 11 months ago
Semidefinite Optimization Approaches for Satisfiability and Maximum-Satisfiability Problems
Semidefinite optimization, commonly referred to as semidefinite programming, has been a remarkably active area of research in optimization during the last decade. For combinatoria...
Miguel F. Anjos
JSAT
2006
94views more  JSAT 2006»
13 years 11 months ago
A Note on the Use of Independent Sets for the k-SAT Problem
An independent set of variables is one in which no two variables occur in the same clause in a given k-SAT instance. Recently, independent sets have obtained more attention. Due t...
Konstantin Kutzkov
JSAT
2006
73views more  JSAT 2006»
13 years 11 months ago
Impurity: Another Phase Transition of SAT
It is well known that satisfiability of random sets of propositional clauses undergoes phase transition while the clause-to-variable ratio of the sets increases. We introduce anot...
Eliezer L. Lozinskii
JSAT
2006
119views more  JSAT 2006»
13 years 11 months ago
A Faster Clause-Shortening Algorithm for SAT with No Restriction on Clause Length
We give a randomized algorithm for testing satisfiability of Boolean formulas in conjunctive normal form with no restriction on clause length. This algorithm uses the clauseshorte...
Evgeny Dantsin, Alexander Wolpert
JSAT
2006
126views more  JSAT 2006»
13 years 11 months ago
Complexity Results for Quantified Boolean Formulae Based on Complete Propositional Languages
Several propositional fragments have been considered so far as target languages for knowledge compilation and used for improving computational tasks from major AI areas (like infe...
Sylvie Coste-Marquis, Daniel Le Berre, Florian Let...