Ordered Median Location Problems

Justo Puerto () and Antonio M. Rodríguez-Chía ()
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Justo Puerto: Universidad de Sevilla
Antonio M. Rodríguez-Chía: Universidad de Cádiz

Chapter Chapter 10 in Location Science, 2015, pp 249-288 from Springer

Abstract: Abstract This chapter analyzes the ordered median location problem in three different frameworks: continuous, discrete and networks; where some classical but also new results have been collected. For each solution space we study general properties that lead to resolution algorithms. In the continuous case, we present two solution approaches for the planar case with polyhedral norms (the most intuitive case) and a novel approach applicable for the general case based on a hierarchy of semidefinite programs that can approximate up to any degree of accuracy the solution of any ordered median problem in finite dimension spaces with polyhedral or ℓ p -norms. We also cover the problems on networks deriving finite dominating sets for some particular classes of λ parameters and showing the impossibility of finding a FDS with polynomial cardinality for general lambdas in the multifacility case. Finally, we present a covering based formulation for the capacitated discrete ordered median problem with binary assignment which is rather promising in terms of gap and CPU time for solving this family of problems.

Keywords: Finite dominating set; Mixed integer linear programming; Ordered median function (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-319-13111-5_10

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DOI: 10.1007/978-3-319-13111-5_10

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