Sciweavers

3082 search results - page 69 / 617
» New Bounds for the Controller Problem
Sort
View
WAOA
2004
Springer
142views Algorithms» more  WAOA 2004»
15 years 9 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 7 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 3 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 8 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 4 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