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考虑库存成本的配送中心动态选址模型及算法

, PP. 149-154

Keywords: 运输经济,动态选址-库存模型,遗传算法,克隆选择算法,粒子群优化算法,库存成本

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Abstract:

为了解决传统配送中心选址没有同时考虑库存持有成本和决策环境的动态变化的问题,建立了一种新的模型。首先,利用两步骤近似方法获得(Q,R)库存策略下每一个周期配送中心的库存成本计算公式;然后,针对传统设施动态选址模型对选址成本的不恰当表示进行了修正,并与库存成本计算方法相结合,从而建立考虑库存成本的配送中心动态选址模型。最后,分别用遗传算法、克隆选择算法、粒子群优化算法求解所建立的模型,并从算法的精确度、稳定性、运算速度和收敛性比较了三种算法的性能。算例测试结果表明所建立的模型是有效的;从总体上看,遗传算法的适应性要强于克隆选择算法和粒子群算法。

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