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» Symmetry Breaking Using Value Precedence
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ECAI
2006
Springer
13 years 8 months ago
Symmetry Breaking Using Value Precedence
We present a comprehensive study of the use of value precedence constraints to break value symmetry. We first give a simple encoding of value precedence into ternary constraints th...
Toby Walsh
CONSTRAINTS
2006
105views more  CONSTRAINTS 2006»
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
CP
2004
Springer
13 years 10 months ago
Global Constraints for Integer and Set Value Precedence
The paper introduces value precedence on integer and set sequences. A useful application of the notion is in breaking symmetries of indistinguishable values, an important class of ...
Yat Chiu Law, Jimmy Ho-Man 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
Automatic Detection of Variable and Value Symmetries
Abstract. Many symmetry breaking techniques assume that the symmetries of a CSP are given as input in addition to the CSP itself. We present a method that can be used to detect all...
Jean-Francois Puget