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CP
2005
Springer
15 years 9 months ago
Sub-optimality Approximations
Abstract. The sub-optimality approximation problem considers an optimization problem O, its optimal solution σ∗ , and a variable x with domain {d1, . . . , dm} and returns appro...
Russell Bent, Irit Katriel, Pascal Van Hentenryck
CP
2005
Springer
15 years 9 months ago
Conditional Symmetry Breaking
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...
Ian P. Gent, Tom Kelsey, Steve Linton, Iain McDona...
CP
2005
Springer
15 years 9 months ago
Symmetry and Consistency
We introduce a novel and exciting research area: symmetrising levels of consistency to produce stronger forms of consistency and more efficient mechanisms for establishing them. W...
Ian P. Gent, Tom Kelsey, Steve Linton, Colva M. Ro...
103
Voted
CP
2005
Springer
15 years 9 months ago
Partial Redundant Modeling
In the context of previous work on redundant modeling, permutation problems and matrix modeling, we introduce the notion of partial redundant modeling and categorical channeling co...
Tiziana Ligorio, Susan L. Epstein
133
Voted
CP
2005
Springer
15 years 9 months ago
Weak Symmetries in Problem Formulations
Abstract. In this article we will present some problems that have weak symmetries. In contrast to a proper symmetry, a weak symmetry acts only on a subset of the variables and pres...
Roland Martin, Karsten Weihe
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