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      Problema de localización de bodegas y ruteo de vehículos resuelto mediante el optimizador de hiena manchada Translated title: Capacitated location routing problem solved by using the spotted hyena optimizer

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          Abstract

          Resumen: El objetivo principal de la investigación fue determinar la eficiencia de la metaheurística conocida como optimizador de hiena manchada en un problema de localización de bodegas y ruteo de vehículos con depósitos y vehículos capacitados, catalogado como un problema NP-Duro (No determinístico polinomial). Se comparó los resultados obtenidos mediante el optimizador de hiena manchada para un conjunto de situaciones seleccionadas de la literatura con sus correspondientes valores óptimos hallados hasta la fecha. Se encontró que el optimizador de hiena manchada ofrece buenos resultados para una parte de las situaciones, quedando cerca del óptimo en algunas. Los mejores resultados fueron para las instancias coor100*10-1 y coor50*5-1b optimizando sus costos hasta en un 100%. En efecto, se puede afirmar que el optimizador de hiena manchada es una metaheurística adecuada para resolver instancias grandes para un problema de localización de bodegas y ruteo de vehículos.

          Translated abstract

          Abstract: The main objective of the research is to determine the efficiency of the spotted hyena optimizer metaheuristic in solving the capacitated location routing problem, recognized as a NP-hard problem (non-deterministic polynomial-time hardness). The results obtained using the spotted hyena optimizer were compared with literature results with their corresponding optimal values available until today. It was found that the spotted hyena optimizer offers good results for a part of the set of instances, being near to the optimum value in some cases. The best results were found for the instances coor100*10-1 and coor50*5-1b, optimizing the cost up to 100%. In fact, it can be said that the spotted hyena optimizer is an adequate metaheuristic method when is used to solve big instances of the capacitated location routing problem.

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          Spotted hyena optimizer: A novel bio-inspired based metaheuristic technique for engineering applications

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            Greedy Randomized Adaptive Search Procedures

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              An adaptive large neighborhood search heuristic for Two-Echelon Vehicle Routing Problems arising in city logistics

              In this paper, we propose an adaptive large neighborhood search heuristic for the Two-Echelon Vehicle Routing Problem (2E-VRP) and the Location Routing Problem (LRP). The 2E-VRP arises in two-level transportation systems such as those encountered in the context of city logistics. In such systems, freight arrives at a major terminal and is shipped through intermediate satellite facilities to the final customers. The LRP can be seen as a special case of the 2E-VRP in which vehicle routing is performed only at the second level. We have developed new neighborhood search operators by exploiting the structure of the two problem classes considered and have also adapted existing operators from the literature. The operators are used in a hierarchical scheme reflecting the multi-level nature of the problem. Computational experiments conducted on several sets of instances from the literature show that our algorithm outperforms existing solution methods for the 2E-VRP and achieves excellent results on the LRP.
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                Author and article information

                Journal
                infotec
                Información tecnológica
                Inf. tecnol.
                Centro de Información Tecnológica (La Serena, , Chile )
                0718-0764
                April 2020
                : 31
                : 2
                : 195-206
                Affiliations
                [1] Córdoba Montería orgnameUniversidad de Córdoba orgdiv1Facultad de Ingenierías orgdiv2Dpto. de Ingeniería Industrial Colombia wurangonarvaez86@ 123456correo.unicordoba.edu.co
                Article
                S0718-07642020000200195 S0718-0764(20)03100200195
                d4b06cc2-abc7-4825-aa72-353ca36805da

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 19 August 2019
                : 05 October 2019
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 18, Pages: 12
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                SciELO Chile

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                Artículos

                optimización,metaheurística,optimizador de hiena manchada,problema de ruteo de vehículos,logística,vehicle routing problem,spotted hyena optimizer,metaheuristic,optimization,logistic

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