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IJCAI
2003
14 years 11 months ago
Algorithms for Identifying Rigid Subsystems in Geometric Constraint Systems
The structural rigidity property, a generalization of Laman’s theorem which characterizes rigid bar frameworks in 2D, is generally considered a good approximation of rigidity in...
Christophe Jermann, Bertrand Neveu, Gilles Trombet...
AI
2007
Springer
14 years 9 months ago
Determining the consistency of partial tree descriptions
We present an efficient algorithm that checks the consistency of partial descriptions of ordered trees. The constraint language of these descriptions was introduced by Cornell in c...
Manuel Bodirsky, Martin Kutz
APPROX
2005
Springer
105views Algorithms» more  APPROX 2005»
15 years 3 months ago
The Complexity of Making Unique Choices: Approximating 1-in- k SAT
We study the approximability of 1-in-kSAT, the variant of Max kSAT where a clause is deemed satisfied when precisely one of its literals is satisfied. We also investigate differ...
Venkatesan Guruswami, Luca Trevisan
CONSTRAINTS
2002
107views more  CONSTRAINTS 2002»
14 years 9 months ago
Fourier Elimination for Compiling Constraint Hierarchies
Linear equality and inequality constraints arise naturally in specifying many aspects of user interfaces, such as requiring that one window be to the left of another, requiring tha...
Warwick Harvey, Peter J. Stuckey, Alan Borning
80
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JAIR
2010
145views more  JAIR 2010»
14 years 8 months ago
Fast Set Bounds Propagation Using a BDD-SAT Hybrid
Binary Decision Diagram (BDD) based set bounds propagation is a powerful approach to solving set-constraint satisfaction problems. However, prior BDD based techniques incur the si...
Graeme Gange, Peter J. Stuckey, Vitaly Lagoon