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COR
2008
133views more  COR 2008»
14 years 12 months ago
A new constraint programming approach for the orthogonal packing problem
The two-dimensional orthogonal packing problem (2OPP) consists in determining if a set of rectangles can be packed in a larger rectangle of fixed size. We propose an exact method ...
François Clautiaux, Antoine Jouglet, Jacque...
SAC
2011
ACM
14 years 3 months ago
New hybrid genetic algorithm for solving optimal communication spanning tree problem
Optimal Communication Spanning Tree (OCST) is a well-known NP-hard problem on the graph that seeks for the spanning tree with the lowest cost. The tree cost depends on the demand ...
Pham Trung Kien, Nguyen Duy Hiep, Huynh Thi Thanh ...
EVOW
2000
Springer
15 years 3 months ago
An Ant Algorithm with a New Pheromone Evaluation Rule for Total Tardiness Problems
Ant Colony Optimization is an evolutionary method that has recently been applied to scheduling problems. We propose an ACO algorithm for the Single Machine Total Weighted Tardiness...
Daniel Merkle, Martin Middendorf
LPAR
2005
Springer
15 years 5 months ago
A New Constraint Solver for 3D Lattices and Its Application to the Protein Folding Problem
Abstract. The paper describes the formalization and implementation of an efficient constraint programming framework operating on 3D crystal lattices. The framework is motivated an...
Alessandro Dal Palù, Agostino Dovier, Enric...
CAEPIA
2003
Springer
15 years 5 months ago
A New Genetic Approach for the Partitioning Problem in Distributed Virtual Environment Systems
The Partitioning problem is a key issue in the design of Distributed Virtual Environment (DVE) systems based on a server-network architecture. This problem consist of efficiently ...
Pedro Morillo, Pedro López, Juan M. Ordu&nt...