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CORR
2008
Springer
76views Education» more  CORR 2008»
14 years 11 months ago
An Efficient Algorithm for a Sharp Approximation of Universally Quantified Inequalities
This paper introduces a new algorithm for solving a subclass of quantified constraint satisfaction problems (QCSP) where existential quantifiers precede universally quantified ine...
Alexandre Goldsztejn, Claude Michel, Michel Rueher
FORTE
2009
14 years 9 months ago
Approximated Context-Sensitive Analysis for Parameterized Verification
Abstract. We propose a verification method for parameterized systems with global conditions. The method is based on context-sensitive constraints, a symbolic representation of infi...
Parosh Aziz Abdulla, Giorgio Delzanno, Ahmed Rezin...
INFOCOM
2009
IEEE
15 years 6 months ago
Power Controlled Scheduling with Consecutive Transmission Constraints: Complexity Analysis and Algorithm Design
Abstract—We study the joint power control and minimumframe-length scheduling problem in wireless networks, under the physical interference model and subject to consecutive transm...
Liqun Fu, Soung Chang Liew, Jianwei Huang
SODA
2010
ACM
175views Algorithms» more  SODA 2010»
15 years 9 months ago
Fast SDP Algorithms for Constraint Satisfaction Problems
The class of constraint satisfactions problems (CSPs) captures many fundamental combinatorial optimization problems such as Max Cut, Max q-Cut, Unique Games, and Max k-Sat. Recent...
David Steurer
ECCC
2010
111views more  ECCC 2010»
14 years 11 months ago
Tight Bounds on the Approximability of Almost-satisfiable Horn SAT and Exact Hitting Set}
We study the approximability of two natural Boolean constraint satisfaction problems: Horn satisfiability and exact hitting set. Under the Unique Games conjecture, we prove the fo...
Venkatesan Guruswami, Yuan Zhou