4 research outputs found

    Anàlisi i disseny d'un sistema de còpies de seguretat

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    Aquest treball presenta el disseny d'un sistema de còpies de seguretat per a una empresa de serveis que presenta dades per a altres empreses. Explica les necessitats de l'empresa i les especificacions que ha de complir el sistema de còpies, i estudia les possibles opcions de programari i maquinari i els aspectes legals.Este trabajo presenta el diseño de un sistema de copias de seguridad para una empresa de servicios que presenta datos para otras empresas. Explica las necesidades de la empresa y las especificaciones que debe cumplir el sistema de copias, y estudia posibles opciones de hardware y software y los aspectos legales.This work presents the design of a backup system for a services company that provides data for other companies. It explains the needs of the company and the specifications that the backup system must comply with, and it studies the possible software and hardware options, in addition to the legal aspects involved

    Anàlisi i disseny d'un sistema de còpies de seguretat

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    Aquest treball presenta el disseny d'un sistema de còpies de seguretat per a una empresa de serveis que presenta dades per a altres empreses. Explica les necessitats de l'empresa i les especificacions que ha de complir el sistema de còpies, i estudia les possibles opcions de programari i maquinari i els aspectes legals.Este trabajo presenta el diseño de un sistema de copias de seguridad para una empresa de servicios que presenta datos para otras empresas. Explica las necesidades de la empresa y las especificaciones que debe cumplir el sistema de copias, y estudia posibles opciones de hardware y software y los aspectos legales.This work presents the design of a backup system for a services company that provides data for other companies. It explains the needs of the company and the specifications that the backup system must comply with, and it studies the possible software and hardware options, in addition to the legal aspects involved

    SR-1: A simulation-based algorithm for the capacitated vehicle routing problem

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    In this paper we present SR-1, a simulation-based heuristic algorithm for the Capacitated Vehicle Routing Problem (CVRP). Given a CVRP instance, SR-1 uses an initial "good solution", such as the one provided by the classical Clarke and Wright heuristic, in order to obtain observations for the variable "distance between two consecutive nodes in a route". These observations are then fitted by a statistical distribution, which characterizes the inter-node distances in good solutions. Then, the fitted distribution is employed to generate a large number of new random solutions with similar edge-size distribution. Thus, a random but oriented local search of the space of solutions is performed, and a list of "best solutions" is obtained. This list allows considering several properties per solution, not only aprioristic costs, which can be practically used when making multiple-criteria decisions. Several tests have been performed to discuss the effectiveness of this approach

    SR-1: A simulation-based algorithm for the capacitated vehicle routing problem

    No full text
    In this paper we present SR-1, a simulation-based heuristic algorithm for the Capacitated Vehicle Routing Problem (CVRP). Given a CVRP instance, SR-1 uses an initial "good solution", such as the one provided by the classical Clarke and Wright heuristic, in order to obtain observations for the variable "distance between two consecutive nodes in a route". These observations are then fitted by a statistical distribution, which characterizes the inter-node distances in good solutions. Then, the fitted distribution is employed to generate a large number of new random solutions with similar edge-size distribution. Thus, a random but oriented local search of the space of solutions is performed, and a list of "best solutions" is obtained. This list allows considering several properties per solution, not only aprioristic costs, which can be practically used when making multiple-criteria decisions. Several tests have been performed to discuss the effectiveness of this approach
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