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Large-scale local search heuristics for the capacitated vertex \(p\)-center problem. (English) Zbl 1053.90085
Summary: This article investigates the application of very large neighborhood search techniques for solving the capacitated vertex \(p\)-center problem. We characterize a local search neighborhood in terms of path and cyclic exchanges of customers among facilities, and exploit principles borrowed from network optimization theory to efficiently detect cost-decreasing solutions in such a neighborhood. We complement the multiexchange methodology with a relocation mechanism specifically designed to perform facility location adjustments. The validity of the proposed approach is supported by empirical investigation and performance comparisons with the commercial code CPLEX.

90B80 Discrete location and assignment
90C06 Large-scale problems in mathematical programming
90C59 Approximation methods and heuristics in mathematical programming
OR-Library; CPLEX
Full Text: DOI
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