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» The Instance Complexity Conjecture
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CP
2009
Springer
14 years 9 months ago
The Complexity of Valued Constraint Models
The Valued Constraint Satisfaction Problem (VCSP) is a general framework encompassing many optimisation problems. We discuss precisely what it means for a problem to be modelled in...
Peter G. Jeavons, Stanislav Zivný
STACS
2010
Springer
14 years 4 months ago
Unsatisfiable Linear CNF Formulas Are Large and Complex
We call a CNF formula linear if any two clauses have at most one variable in common. We show that there exist unsatisfiable linear k-CNF formulas with at most 4k2 4k clauses, and ...
Dominik Scheder
FOCS
2009
IEEE
14 years 3 months ago
The Quantum and Classical Complexity of Translationally Invariant Tiling and Hamiltonian Problems
— We study the complexity of a class of problems involving satisfying constraints which remain the same under translations in one or more spatial directions. In this paper, we sh...
Daniel Gottesman, Sandy Irani
JELIA
2004
Springer
14 years 2 months ago
Representation and Complexity in Boolean Games
Boolean games are a class of two-player games which may be defined via a Boolean form over a set of atomic actions. A particular game on some form is instantiated by partitioning ...
Paul E. Dunne, Wiebe van der Hoek
FM
2003
Springer
136views Formal Methods» more  FM 2003»
14 years 2 months ago
Improving Safety Assessment of Complex Systems: An Industrial Case Study
The complexity of embedded controllers is steadily increasing. This trend, stimulated by the continuous improvement of the computational power of hardware, demands for a correspond...
Marco Bozzano, Antonella Cavallo, Massimo Cifaldi,...