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APPROX
2009
Springer
142views Algorithms» more  APPROX 2009»
15 years 4 months ago
Optimal Sherali-Adams Gaps from Pairwise Independence
Abstract. This work considers the problem of approximating fixed predicate constraint satisfaction problems (MAX k-CSP(P)). We show that if the set of assignments accepted by P co...
Konstantinos Georgiou, Avner Magen, Madhur Tulsian...
SCP
2011
228views Communications» more  SCP 2011»
14 years 4 months ago
Channel-based coordination via constraint satisfaction
Coordination in Reo emerges from the composition of the behavioural constraints of primitives, such as channels, in a component connector. Understanding and implementing Reo, howe...
Dave Clarke, José Proença, Alexander...
CSR
2007
Springer
15 years 3 months ago
Ruling Out Polynomial-Time Approximation Schemes for Hard Constraint Satisfaction Problems
The maximum constraint satisfaction problem (Max CSP) is the following computational problem: an instance is a finite collection of constraints on a set of variables, and the goal...
Peter Jonsson, Andrei A. Krokhin, Fredrik Kuivinen
TCS
2010
14 years 8 months ago
CSP duality and trees of bounded pathwidth
We study non-uniform constraint satisfaction problems definable in monadic Datalog stratified by the use of non-linearity. We show how such problems can be described in terms of...
Catarina Carvalho, Víctor Dalmau, Andrei A....
MICAI
2004
Springer
15 years 3 months ago
Evaluation-Based Semiring Meta-constraints
Abstract. Classical constraint satisfaction problems (CSPs) provide an expressive formalism for describing and solving many real-world problems. However, classical CSPs prove to be...
Jerome Kelleher, Barry O'Sullivan