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With the development of the market economy and improvement of logistics technology professional level, logistics and distribution industry get rapid development. The logistics distribution is a complicated system engineering, which many optimization problems established models and algorithms are very complex, and mostly models and algorithms have NP-hard properties. The paper proceeds theoretical...
As part of solutions to the technical problem of logistics distribution, vehicle routing problem (VRP) is getting more and more attention in academics and enterprises, it belongs to the NP-hard problem theoretically. VRP with time windows and capacity constraint in stochastic traffic network was studied based on travel time reliability . Firstly, travel time was expressed as a random variable according...
Grain logistics vehicle routing problem is a kind of combination NP-hard problem. According to the large batch and multi-point to multi-point transportation of grain logistics, this paper considers vehicle routing problem with time windows and its intelligent algorithm. An algorithm of PSO for VRPTW is proposed in this work, experiments are made to compare the algorithm with GA on solving this problem...
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