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CORR
2011
Springer
207views Education» more  CORR 2011»
8 years 22 days 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...
IJCAI
2003
8 years 7 months ago
A Fast and Simple Algorithm for Bounds Consistency of the AllDifferent Constraint
In constraint programming one models a problem by stating constraints on acceptable solutions. The constraint model is then usually solved by interleaving backtracking search and ...
Alejandro López-Ortiz, Claude-Guy Quimper, ...
AI
2008
Springer
8 years 6 months ago
Generalised arc consistency for the AllDifferent constraint: An empirical survey
The AllDifferent constraint is a crucial component of any constraint toolkit, language or solver, since it is very widely used in a variety of constraint models. The literature con...
Ian P. Gent, Ian Miguel, Peter Nightingale
AAAI
2010
8 years 7 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...
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