12 search results - page 1 / 3 » An Efficient Way of Breaking Value Symmetries |
AAAI
2006
14 years 11 days ago
2006
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 ...
CONSTRAINTS
2006
13 years 11 months ago
2006
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...
ECAI
2006
Springer
14 years 2 months ago
2006
Springer
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...
CP
2005
Springer
14 years 4 months ago
2005
Springer
Conditional symmetry arises in a sub-problem of a constraint satisfaction problem, where the sub-problem satisfies some condition under which additional symetries hold. Typically...
CP
2005
Springer
14 years 4 months ago
2005
Springer
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 ...