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CONSTRAINTS
2006
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13 years 4 months ago
Symmetry Breaking Constraints for Value Symmetries in Constraint Satisfaction
Constraint satisfaction problems (CSPs) sometimes contain both variable symmetries and value symmetries, causing adverse effects on CSP solvers based on tree search. As a remedy, s...
Y. Law, J. Lee
AAAI
2006
13 years 6 months ago
An Efficient Way of Breaking Value Symmetries
Several methods for breaking value symmetries have been proposed recently in the constraint programming community. They can be used in conjunction with variable symmetry breaking ...
Jean-François Puget
CP
2005
Springer
13 years 10 months ago
Breaking All Value Symmetries in Surjection Problems
We propose a surprisingly simple new way of breaking all value symmetries with constraints. Our method requires the addition of one variable per value of the problem plus a linear ...
Jean-Francois Puget