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» Propagation in CSP and SAT
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AAAI
2010
13 years 5 months ago
Exploiting QBF Duality on a Circuit Representation
Search based solvers for Quantified Boolean Formulas (QBF) have adapted the SAT solver techniques of unit propagation and clause learning to prune falsifying assignments. The tech...
Alexandra Goultiaeva, Fahiem Bacchus
CP
2007
Springer
14 years 1 months ago
GAC Via Unit Propagation
In this paper we argue that an attractive and potentially very general way of achieving generalized arc consistency (GAC) on a constraint is by using unit propagation (UP) over a C...
Fahiem Bacchus
CSCLP
2004
Springer
14 years 1 months ago
Automatically Exploiting Symmetries in Constraint Programming
We introduce a framework for studying and solving a class of CSP formulations. The framework allows constraints to be expressed as linear and nonlinear equations, then compiles th...
Arathi Ramani, Igor L. Markov
SAT
2009
Springer
113views Hardware» more  SAT 2009»
14 years 2 months ago
Exploiting Cycle Structures in Max-SAT
We investigate the role of cycles structures (i.e., subsets of clauses of the form ¯l1 ∨ l2, ¯l1 ∨ l3, ¯l2 ∨ ¯l3) in the quality of the lower bound (LB) of modern MaxSAT ...
Chu Min Li, Felip Manyà, Nouredine Ould Moh...
CONSTRAINTS
2006
105views more  CONSTRAINTS 2006»
13 years 7 months ago
Symmetry Breaking Constraints for Value Symmetries in Constraint Satisfaction
Constraint satisfaction problems (CSPs) sometimes contain both variable symmetries and value symmetries, causing adverse effects on CSP solvers based on tree search. As a remedy, s...
Y. Law, J. Lee