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CP
2009
Springer
14 years 4 months ago
Why Cumulative Decomposition Is Not as Bad as It Sounds
Abstract. The global cumulative constraint was proposed for modelling cumulative resources in scheduling problems for finite domain (FD) propagation. Since that time a great deal ...
Andreas Schutt, Thibaut Feydy, Peter J. Stuckey, M...
SAT
2009
Springer
119views Hardware» more  SAT 2009»
14 years 4 months ago
Boundary Points and Resolution
We use the notion of boundary points to study resolution proofs. Given a CNF formula F, a lit(x)-boundary point is a complete assignment falsifying only clauses of F having the sam...
Eugene Goldberg
SAT
2009
Springer
153views Hardware» more  SAT 2009»
14 years 4 months ago
Does Advice Help to Prove Propositional Tautologies?
One of the starting points of propositional proof complexity is the seminal paper by Cook and Reckhow [6], where they defined propositional proof systems as poly-time computable f...
Olaf Beyersdorff, Sebastian Müller
SAT
2009
Springer
124views Hardware» more  SAT 2009»
14 years 4 months ago
Cardinality Networks and Their Applications
We introduce Cardinality Networks, a new CNF encoding of cardinality constraints. It improves upon the previously existing encodings such as the sorting networks of [ES06] in that ...
Roberto Asín, Robert Nieuwenhuis, Albert Ol...
SAT
2009
Springer
109views Hardware» more  SAT 2009»
14 years 4 months ago
A Compact Representation for Syntactic Dependencies in QBFs
Different quantifier types in Quantified Boolean Formulae (QBF) introduce variable dependencies which have to be taken into consideration when deciding satisfiability of a QBF....
Florian Lonsing, Armin Biere