Sciweavers

749 search results - page 111 / 150
» Dualities for Constraint Satisfaction Problems
Sort
View
AAAI
1996
15 years 8 days ago
A Graph-Based Method for Improving GSAT
GSAT is a randomized greedy local repair procedure that was introduced for solving propositional satis ability and constraint satisfaction problems. We present an improvement to G...
Kalev Kask, Rina Dechter
CORR
2010
Springer
129views Education» more  CORR 2010»
14 years 11 months ago
The complexity of positive first-order logic without equality
We study the complexity of evaluating positive equality-free sentences of first-order (FO) logic over a fixed, finite structure B. This may be seen as a natural generalisation of ...
Florent R. Madelaine, Barnaby Martin
APPROX
2009
Springer
138views Algorithms» more  APPROX 2009»
15 years 5 months ago
Submodular Maximization over Multiple Matroids via Generalized Exchange Properties
Submodular-function maximization is a central problem in combinatorial optimization, generalizing many important NP-hard problems including Max Cut in digraphs, graphs and hypergr...
Jon Lee, Maxim Sviridenko, Jan Vondrák
CP
2007
Springer
15 years 5 months ago
Solution Directed Backjumping for QCSP
In this paper we present new techniques for improving backtracking based Quantified Constraint Satisfaction Problem (QCSP) solvers. QCSP is a generalization of CSP in which variab...
Fahiem Bacchus, Kostas Stergiou
CP
2007
Springer
15 years 5 months ago
Exploiting Past and Future: Pruning by Inconsistent Partial State Dominance
It has recently been shown, for the Constraint Satisfaction Problem (CSP), that the state associated with a node of the search tree built by a backtracking algorithm can be exploit...
Christophe Lecoutre, Lakhdar Sais, Sébastie...