Search results for "Stacker"

showing 2 items of 2 documents

The stacker crane problem and the directed general routing problem

2015

[EN] This article deals with the polyhedral description and the resolution of the directed general routing problem (DGRP) and the stacker crane problem (SCP). The DGRP contains a large number of important arc and node routing problems as special cases, including the SCP. Large families of facet-defining inequalities for the DGRP are described and a branch-and-cut algorithm for these problems is presented. Extensive computational experiments over different sets of DGRP and SCP instances are included.

Mathematical optimizationDirected general routing problemStacker crane problemComputer Networks and CommunicationsStackerNode (networking)Branch-and-cut algorithmDirected graphResolution (logic)Directed rural postman problemHardware and ArchitectureRouting (electronic design automation)MATEMATICA APLICADASoftwareInformation SystemsMathematics
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An ILS-Based Metaheuristic for the Stacker Crane Problem

2012

[EN] In this paper we propose a metaheuristic algorithm for the Stacker Crane Problem. This is an NP-hard arc routing problem whose name derives from the practical problem of operating a crane. Here we present a formulation and a lower bound for this problem and propose a metaheuristic algorithm based on the combination of a Multi-start and an Iterated Local Search procedures. Computational results on a large set of instances are presented.

Mathematical optimizationIterated local searchComputer scienceStackerComputerApplications_COMPUTERSINOTHERSYSTEMSMetaheuristicsUpper and lower boundsParallel metaheuristicDirected rural postman problemCombinatorial OptimizationCombinatorial optimizationLarge set (combinatorics)MATEMATICA APLICADAMetaheuristicArc routingAlgorithm
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