求解作业车间调度问题的全局邻域搜索方法

采用传统的关键邻域搜索方法求解作业车间调度问题时,往往容易陷入局部极值而且难以跳出.为此,提出了一种具有动态调整能力的全局邻域交换策略,该策略有可能产生大量的不可行调度,需要一种筛选方法加以过滤.证明了一个新的邻域交换性质,利用该性质可以对所得调度方案作可行性约束判定,从而有效地过滤掉不可行调度.在此基础上,提出了一种求解作业车间调度问题的算法.最后,取不同规模的Benchmark问题算例对该算法进行测试,结果表明,无论从解的质量还是计算时间都取得了较好的效果.

Global neighborhood algorithm for Job Shop scheduling problem

Traditional critical neighborhood algorithms for Job Shop scheduling problem were easily trapped into local optimal and hardly to escape. To deal with this problem,a global neighborhood swapping strategy with dynamic adapatability was proposed. However,this new strategy might possibly induce infeasible solutions. Thus,a new proposition concerning the neighborhood swapping strategy was presented and proved,which could be used to verify whether a neighborhood swapping was acceptable or not. Based on this glob...