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Aiming at shortcomings of existed design structure matrix based task programming methods, a new stochastic task programming model is built in which task execution time and cost are described as stochastic variable subjected to some type of probability distribution. In view of built task programming model, a hybrid simulation optimization algorithm is developed which adopts ordinal optimization and...
This paper studies how to design the network of reverse logistics, including selection of locations of initial collection points, centralized return centers, and via initial collection points, the best strategy to send the return products to centralized return centers. Considering the fixed cost of initial collection points, this paper sets up a multi objective mixed integer nonlinear programming...
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