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» Propagation in CSP and SAT
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CP
2008
Springer
15 years 1 months ago
Probabilistically Estimating Backbones and Variable Bias: Experimental Overview
Backbone variables have the same assignment in all solutions to a given constraint satisfaction problem; more generally, bias represents the proportion of solutions that assign a v...
Eric I. Hsu, Christian J. Muise, J. Christopher Be...
CP
1999
Springer
15 years 4 months ago
A Framework for Constraint Programming Based Column Generation
Column generation is a state-of-the-art method for optimally solving di cult large-scale optimization problems such as airline crew assignment. We show how to apply column generati...
Ulrich Junker, Stefan E. Karisch, Niklas Kohl, Bo ...
FLAIRS
2007
15 years 2 months ago
Maintaining Arc-Consistency over Mutex Relations in Planning Graphs during Search
We deal with the search process of the GraphPlan algorithm in this paper. We concentrate on a problem of finding supports for a sub-goal which arises during the search. We model t...
Pavel Surynek, Roman Barták
CP
2007
Springer
15 years 5 months ago
Limitations of Restricted Branching in Clause Learning
The techniques for making decisions, i.e., branching, play a central role in complete methods for solving structured CSP instances. In practice, there are cases when SAT solvers be...
Matti Järvisalo, Tommi A. Junttila
CP
2006
Springer
15 years 3 months ago
Preprocessing QBF
In this paper we investigate the use of preprocessing when solving Quantified Boolean Formulas (QBF). Many different problems can be efficiently encoded as QBF instances, and there...
Horst Samulowitz, Jessica Davies, Fahiem Bacchus