Complementary remarks and improvements to a lagrangean heuristic for capacitated plant location problems

In a former paper, [1], a heuristic using multipliers from a langrean relaxation was proposed for getting feasible solutions to a class of pure integer capacited plant location problems. The heuristic consisted of three steps, the last one being a plant interchange step. Further computational experi...

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Bibliographic Details
Authors: Barceló Bugeda, Jaime|||0000-0001-6195-6434, Casanovas Garcia, Josep|||0000-0002-7026-0962
Format: report
Publication Date:1985
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/110692
Online Access:https://hdl.handle.net/2117/110692
Access Level:Open access
Keyword:Operational research
Àrees temàtiques de la UPC::Matemàtiques i estadística::Investigació operativa
Investigació operativa
Description
Summary:In a former paper, [1], a heuristic using multipliers from a langrean relaxation was proposed for getting feasible solutions to a class of pure integer capacited plant location problems. The heuristic consisted of three steps, the last one being a plant interchange step. Further computational experience has shown that the proposed interchange procedure could fail. In this paper we investigate the computational behaviour of the heuristic without interchange procedure, and we give the result of our computational experience.