An LP-based heuristic for two-stage capacitated facility location problems

A Klose ()
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A Klose: Universität St. Gallen

Journal of the Operational Research Society, 1999, vol. 50, issue 2, 157-166

Abstract: Abstract In this paper, a linear programming based heuristic is considered for a two-stage capacitated facility location problem with single source constraints. The problem is to find the optimal locations of depots from a set of possible depot sites in order to serve customers with a given demand, the optimal assignments of customers to depots and the optimal product flow from plants to depots. Good lower and upper bounds can be obtained for this problem in short computation times by adopting a linear programming approach. To this end, the LP formulation is iteratively refined using valid inequalities and facets which have been described in the literature for various relaxations of the problem. After each reoptimisation step, that is the recalculation of the LP solution after the addition of valid inequalities, feasible solutions are obtained from the current LP solution by applying simple heuristics. The results of extensive computational experiments are given.

Keywords: LP-based heuristics; cutting planes; facility location (search for similar items in EconPapers)
Date: 1999
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Citations: View citations in EconPapers (14)

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DOI: 10.1057/palgrave.jors.2600675

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