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AAAI
1994
14 years 11 months ago
A Filtering Algorithm for Constraints of Difference in CSPs
Many real-life Constraint Satisfaction Problems (CSPs) involve some constraints similar to the alldifferent constraints. These constraints are called constraints of difference. Th...
Jean-Charles Régin
CPAIOR
2005
Springer
15 years 3 months ago
Combination of Among and Cardinality Constraints
A cardinality constraint imposes that each value of a set V must be taken a certain number of times by a set of variables X, whereas an among constraint imposes that a certain numb...
Jean-Charles Régin
CP
2004
Springer
15 years 3 months ago
Improved Algorithms for the Global Cardinality Constraint
Abstract. We study the global cardinality constraint (gcc) and pro
Claude-Guy Quimper, Alejandro López-Ortiz, ...
CPAIOR
2006
Springer
15 years 1 months ago
Improved Algorithm for the Soft Global Cardinality Constraint
Abstract. We propose two algorithms achieving generalized arc consistency for the soft global cardinality constraint with variable-based violation and with value-based violation. T...
Alessandro Zanarini, Michela Milano, Gilles Pesant
ICTAI
2006
IEEE
15 years 3 months ago
Finding Crucial Subproblems to Focus Global Search
Traditional global search heuristics to solve constraint satisfaction problems focus on properties of an individual variable that mandate early search attention. If, however, one ...
Susan L. Epstein, Richard J. Wallace