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This paper builds an optimal logistics node layout model with considering the land constraints and scale economy of freight based on the analysis of connotation of logistics node layout and does computational analysis to the model by SGA and numerical example simulation in Matlab, the analysis of the example shows that the algorithm can search to the global optimal solution of the problem quickly...
This paper considers a continuous capacitated facility location problem without a priori knowledge of the desired number of facilities. The demand locations and volume are known to the decision maker. A new hybrid evolutionary algorithm combining variable-length GA (genetic algorithm) and PSO (particle swarm optimization) together is proposed to solve the problem. For variable-length GA, the chromosome...
The Vehicle Routing Problem's focal point is no longer a single objective to get a shortest routing or satisfy customer's time demand, but a multiple objective which include nearly every aspect in the distribution network such as the cost of delivery, shipping time, and distance of transportation. Most of these aspects are very significant in the delivery network. Classic VRP models cannot take real-time...
Based on multi-agent simulation method in complex system theory, it is proposed in this paper the study route, basic framework and research approach of layered optimization for port cluster, to explore the structure of intelligent agents and its competitive and cooperative relationships. Global optimized intelligent agents are set up to optimize the general layout of port cluster and co-optimize the...
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