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ICDT
2010
ACM
141views Database» more  ICDT 2010»
14 years 4 days ago
The Complexity of Rooted Phylogeny problems
Several computational problems in phylogenetic reconstruction can be formulated as restrictions of the following general problem: given a formula in conjunctive normal form where ...
Manuel Bodirsky, Jens K. Mueller
EXPCS
2007
13 years 12 months ago
Performance testing of combinatorial solvers with isomorph class instances
Combinatorial optimization problems expressed as Boolean constraint satisfaction problems (BCSPs) arise in several contexts, ranging from the classical unate set-packing problems ...
Franc Brglez, Jason A. Osborne
CP
2008
Springer
13 years 9 months ago
A Branch and Bound Algorithm for Numerical MAX-CSP
The Constraint Satisfaction Problem (CSP) framework allows users to define problems in a declarative way, quite independently from the solving process. However, when the problem i...
Jean-Marie Normand, Alexandre Goldsztejn, Marc Chr...
SGAI
2007
Springer
14 years 2 months ago
Escaping Local Optima: Constraint Weights vs. Value Penalties
Constraint Satisfaction Problems can be solved using either iterative improvement or constructive search approaches. Iterative improvement techniques converge quicker than the cons...
Muhammed Basharu, Inés Arana, Hatem Ahriz
SAC
2005
ACM
14 years 1 months ago
Limited assignments: a new cutoff strategy for incomplete depth-first search
In this paper, we propose an extension of three incomplete depthfirst search techniques, namely depth-bounded backtrack search, credit search, and iterative broadening, towards pr...
Roman Barták, Hana Rudová