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WAOA
2004
Springer
142views Algorithms» more  WAOA 2004»
15 years 11 months ago
This Side Up!
Abstract. We consider two- and three-dimensional bin packing problems where 90◦ rotations are allowed. We improve all known asymptotic performance bounds for these problems. In p...
Leah Epstein, Rob van Stee
GECCO
2010
Springer
156views Optimization» more  GECCO 2010»
15 years 10 months ago
Elementary landscape decomposition of the quadratic assignment problem
The Quadratic Assignment Problem (QAP) is a well-known NP-hard combinatorial optimization problem that is at the core of many real-world optimization problems. We prove that QAP c...
J. Francisco Chicano, Gabriel Luque, Enrique Alba
MP
2006
119views more  MP 2006»
15 years 6 months ago
Approximate extended formulations
Mixed integer programming (MIP) formulations are typically tightened through the use of a separation algorithm and the addition of violated cuts. Using extended formulations involv...
Mathieu Van Vyve, Laurence A. Wolsey
SWAT
1994
Springer
86views Algorithms» more  SWAT 1994»
15 years 10 months ago
Sequential and Parallel Algorithms for Embedding Problems on Classes of Partial k-Trees
We present sequential and parallel algorithms for various embedding problems on bounded degree partial k-trees and k-connected partial k-trees these include subgraph isomorphism a...
Arvind Gupta, Naomi Nishimura
PODS
2007
ACM
171views Database» more  PODS 2007»
16 years 6 months ago
Monadic datalog over finite structures with bounded treewidth
Bounded treewidth and Monadic Second Order (MSO) logic have proved to be key concepts in establishing fixed-parameter tractability results. Indeed, by Courcelle's Theorem we ...
Georg Gottlob, Reinhard Pichler, Fang Wei