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FCT
2003
Springer
14 years 27 days ago
On Exact and Approximation Algorithms for Distinguishing Substring Selection
Abstract. The NP-complete Distinguishing Substring Selection problem (DSSS for short) asks, given a set of “good” strings and a set of “bad” strings, for a solution string ...
Jens Gramm, Jiong Guo, Rolf Niedermeier
FSTTCS
2010
Springer
13 years 5 months ago
Satisfiability of Acyclic and Almost Acyclic CNF Formulas
We study the propositional satisfiability problem (SAT) on classes of CNF formulas (formulas in Conjunctive Normal Form) that obey certain structural restrictions in terms of thei...
Sebastian Ordyniak, Daniël Paulusma, Stefan S...
SAT
2007
Springer
75views Hardware» more  SAT 2007»
14 years 1 months ago
Matched Formulas and Backdoor Sets
We demonstrate hardness results for the detection of small backdoor sets with respect to base classes Mr of CNF formulas with maximum deficiency ≤ r (M0 is the class of matched...
Stefan Szeider
AAAI
2010
13 years 9 months ago
A Restriction of Extended Resolution for Clause Learning SAT Solvers
Modern complete SAT solvers almost uniformly implement variations of the clause learning framework introduced by Grasp and Chaff. The success of these solvers has been theoretical...
Gilles Audemard, George Katsirelos, Laurent Simon
AVSS
2006
IEEE
14 years 1 months ago
Real-Time Video Segmentation with VGA Resolution and Memory Bandwidth Reduction
This paper presents the implementation of a video segmentation unit used for embedded automated video surveillance systems. Various aspects of the underlying segmentation algorith...
Hongtu Jiang, Viktor Öwall, Håkan Ard&o...