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CORR
2011
Springer
207views Education» more  CORR 2011»
12 years 11 months ago
The AllDifferent Constraint with Precedences
We propose ALLDIFFPREC, a new global constraint that combines together an ALLDIFFERENT constraint with precedence constraints that strictly order given pairs of variables. We ident...
Christian Bessiere, Nina Narodytska, Claude-Guy Qu...
AAAI
2010
13 years 6 months ago
Propagating Conjunctions of AllDifferent Constraints
We study propagation algorithms for the conjunction of two ALLDIFFERENT constraints. Solutions of an ALLDIFFERENT constraint can be seen as perfect matchings on the variable/value...
Christian Bessiere, George Katsirelos, Nina Narody...
CP
2009
Springer
14 years 5 months ago
Constraints of Difference and Equality: A Complete Taxonomic Characterisation
Abstract. Many combinatorial problems encountered in practice involve constraints that require that a set of variables take distinct or equal values. The AllDifferent constraint, i...
Emmanuel Hebrard, Dániel Marx, Barry O'Sull...
ECSQARU
2009
Springer
13 years 2 months ago
Soft Constraints Processing over Divisible Residuated Lattices
We claim that divisible residuated lattices (DRLs) can act as a unifying evaluation framework for soft constraint satisfaction problems (soft CSPs). DRLs form the algebraic semanti...
Simone Bova
CONSTRAINTS
2008
138views more  CONSTRAINTS 2008»
13 years 5 months ago
Minimization of Locally Defined Submodular Functions by Optimal Soft Arc Consistency
Submodular function minimization is a polynomially-solvable combinatorial problem. Unfortunately the best known general-purpose algorithms have high-order polynomial time complexi...
Martin C. Cooper