Sciweavers

96 search results - page 5 / 20
» Weak Symmetries in Problem Formulations
Sort
View
IJCAI
2001
13 years 8 months ago
Backbones in Optimization and Approximation
We study the impact of backbones in optimization and approximation problems. We show that some optimization problems like graph coloring resemble decision problems, with problem h...
John K. Slaney, Toby Walsh
DAC
2002
ACM
14 years 8 months ago
Solving difficult SAT instances in the presence of symmetry
Research in algorithms for Boolean satisfiability and their efficient implementations [26, 8] has recently outpaced benchmarking efforts. Most of the classic DIMACS benchmarks fro...
Fadi A. Aloul, Arathi Ramani, Igor L. Markov, Kare...
CONSTRAINTS
2011
13 years 2 months ago
Solving Steel Mill Slab Problems with constraint-based techniques: CP, LNS, and CBLS
The Steel Mill Slab Problem is an optimization benchmark that has been studied for a long time in the constraint-programming community but was only solved efficiently in the two l...
Pierre Schaus, Pascal Van Hentenryck, Jean-Noë...
ICDM
2003
IEEE
158views Data Mining» more  ICDM 2003»
14 years 8 days ago
Combining Multiple Weak Clusterings
A data set can be clustered in many ways depending on the clustering algorithm employed, parameter settings used and other factors. Can multiple clusterings be combined so that th...
Alexander P. Topchy, Anil K. Jain, William F. Punc...
DAM
2006
172views more  DAM 2006»
13 years 7 months ago
A Branch-and-Cut algorithm for graph coloring
In a previous work, we proposed a new integer programming formulation for the graph coloring problem which, to a certain extent, avoids symmetry. We studied the facet structure of...
Isabel Méndez-Díaz, Paula Zabala