21 search results - page 2 / 5 » Symmetry Breaking Using Value Precedence |
IJCAI
2003
13 years 6 months ago
2003
Symmetry breaking in CSPs has attracted consid erable attention in recent years. Various general schemes have been proposed to eliminate sym metries during search. In general,...
CP
2006
Springer
13 years 8 months ago
2006
Springer
We reconsider the idea of structural symmetry breaking (SSB) for constraint satisfaction problems (CSPs). We show that the dynamic dominance checks used in symmetry breaking by dom...
ECAI
2004
Springer
13 years 10 months ago
2004
Springer
We present a new conceptual abstraction in symmetry breaking – the GE-tree. The construction and traversal of a GE-tree breaks all symmetries in any constraint satisfaction or si...
CP
2005
Springer
13 years 10 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 ...
CORR
2011
Springer
12 years 11 months ago
2011
Springer
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...