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Journal articles
A hybrid heuristic for the diameter constrained minimum spanning tree problem
Abstract : We propose a hybrid GRASP and ILS based heuristic for the diameter constrained minimum spanning tree problem. The latter typically models network design applications where, under a given quality requirement, all vertices must be connected at minimum cost. An adaptation of the one time tree heuristic is used to build feasible diameter constrained spanning trees. Solutions thus obtained are then attempted to be improved through local search. Four different neighborhoods are investigated, in a scheme similar to VND. Upper bounds within 2% of optimality were obtained for problems in two test sets from the literature. Additionally, upper bounds stronger than those previously obtained in the literature are reported for OR-Library instances.
https://hal-utt.archives-ouvertes.fr/hal-02291651
Contributor : Jean-Baptiste Vu Van Connect in order to contact the contributor
Submitted on : Thursday, September 19, 2019 - 9:58:02 AM
Last modification on : Friday, August 27, 2021 - 3:14:07 PM
Contributor : Jean-Baptiste Vu Van Connect in order to contact the contributor
Submitted on : Thursday, September 19, 2019 - 9:58:02 AM
Last modification on : Friday, August 27, 2021 - 3:14:07 PM
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