Title
Tuning a parametric Clarke–Wright heuristic via a genetic algorithm
Abstract
Almost all heuristic optimization procedures require the presence of a well-tuned set of parameters. The tuning of these parameters is usually a critical issue and may entail intensive computational requirements. We propose a fast and effective approach composed of two distinct stages. In the first stage, a genetic algorithm is applied to a small subset of representative problems to determine a few robust parameter sets. In the second stage, these sets of parameters are the starting points for a fast local search procedure, able to more deeply investigate the space of parameter sets for each problem to be solved. This method is tested on a parametric version of the Clarke and Wright algorithm and the results are compared with an enumerative parameter-setting approach previously proposed in the literature. The results of our computational testing show that our new parameter-setting procedure produces results of the same quality as the enumerative approach, but requires much shorter computational time.
Year
DOI
Venue
2008
10.1057/palgrave.jors.2602488
Journal of The Operational Research Society
Keywords
Field
DocType
genetic algorithm
Mathematical optimization,Vehicle routing problem,Heuristic,Computer science,Algorithm,Combinatorial optimization,Parametric statistics,Heuristics,Parameter space,Local search (optimization),Genetic algorithm
Journal
Volume
Issue
ISSN
59
11
0160-5682
Citations 
PageRank 
References 
12
0.84
2
Authors
3
Name
Order
Citations
PageRank
Maria Battarra118514.70
Bruce L. Golden211323.39
Daniele Vigo32054149.20