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CORR
2011
Springer
187views Education» more  CORR 2011»
13 years 2 months ago
Backdoors to Tractable Answer-Set Programming
We present a unifying approach to the efļ¬cient evaluation of propositional answer-set programs. Our approach is based on backdoors which are small sets of atoms that represent ā...
Johannes Klaus Fichte, Stefan Szeider
CPAIOR
2009
Springer
14 years 5 months ago
Backdoors to Combinatorial Optimization: Feasibility and Optimality
There has been considerable interest in the identiļ¬cation of structural properties of combinatorial problems that lead, directly or indirectly, to the development of eļ¬ƒcient al...
Bistra N. Dilkina, Carla P. Gomes, Yuri Malitsky, ...
ICTAI
2006
IEEE
14 years 4 months ago
Computing Horn Strong Backdoor Sets Thanks to Local Search
In this paper a new approach for computing Strong Backdoor sets of boolean formula in conjunctive normal form (CNF) is proposed. It makes an original use of local search technique...
Lionel Paris, Richard Ostrowski, Pierre Siegel, La...
KR
2010
Springer
14 years 3 months ago
Tractable Answer-Set Programming with Weight Constraints: Bounded Treewidth Is not Enough
Cardinality constraints or, more generally, weight constraints are well recognized as an important extension of answer-set programming. Clearly, all common algorithmic tasks relat...
Reinhard Pichler, Stefan Rümmele, Stefan Szei...
CPAIOR
2011
Springer
13 years 2 months ago
Optimization Methods for the Partner Units Problem
In this work we present the Partner Units Problem as a novel challenge for optimization methods. It captures a certain type of conļ¬guration problem that frequently occurs in indu...
Markus Aschinger, Conrad Drescher, Gerhard Friedri...