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» The complexity of soft constraint satisfaction
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CP
2003
Springer
15 years 5 months ago
An Algebraic Approach to Multi-sorted Constraints
Abstract. Most previous theoretical study of the complexity of the constraint satisfaction problem has considered a simplified version of the problem in which all variables have t...
Andrei A. Bulatov, Peter Jeavons
SAT
2004
Springer
101views Hardware» more  SAT 2004»
15 years 5 months ago
An Algebraic Approach to the Complexity of Generalized Conjunctive Queries
Kolaitis and Vardi pointed out that constraint satisfaction and conjunctive query containment are essentially the same problem. We study the Boolean conjunctive queries under a mor...
Michael Bauland, Philippe Chapdelaine, Nadia Creig...
CORR
2006
Springer
87views Education» more  CORR 2006»
14 years 11 months ago
Synchronization recovery and state model reduction for soft decoding of variable length codes
Abstract-- Variable length codes (VLCs) exhibit desynchronization problems when transmitted over noisy channels. Trellis decoding techniques based on Maximum A Posteriori (MAP) est...
Simon Malinowski, Herve Jegou, Christine Guillemot
CEC
2005
IEEE
15 years 5 months ago
Complexity transitions in evolutionary algorithms: evaluating the impact of the initial population
Abstract- This paper proposes an evolutionary approach for the composition of solutions in an incremental way. The approach is based on the metaphor of transitions in complexity di...
Anne Defaweux, Tom Lenaerts, Jano I. van Hemert, J...
STACS
2005
Springer
15 years 5 months ago
The Core of a Countably Categorical Structure
ded abstract of this article is published in the proceedings of STACS’05, LNCS 3404, Springer Verlag. A relational structure is a core, if all its endomorphisms are embeddings. T...
Manuel Bodirsky