工件带安装时间的单机排序问题的列生成算法
樊保强[1] 唐国春[2]
[1]鲁东大学数学与信息学院,烟台264025 [2]上海第二工业大学管理工程研究所,上海201209
摘 要:
在求解大规模NP-困难的最优化问题方法中,列生成技术越来越受到重视.本文研究工件带有与加工次序有关的安装时间的单机排序问题,首先构造它的时间标号模型,结合D—W分解技术和分支定界方法,给出它的列生成算法.其中时间标号模型的线性松弛为原问题提供了很好的下界,然后提出一个近似算法.通过实验数据表明,我们的算法对中等规模的排序问题1│tij,γj│∑wjCj是有效的.[著者文摘]
文章出处:
《运筹学学报》-2007年11卷3期,94 -65-74,94页
分 类 号:
Time-Indexed Formulations for 1│tij,γj│∑wiCi: Column Generation
Fan Baoqiang, Tang Guochun(Department of Mathematics and Information, Ludong Uni-versity, Yantai 264025, China;2.Institute of Management Engineering, Shanghai Second Polytechnic University, Shanghai 201209, China)
Abstract:
We consider the problem of sheduling jobs on single machine with the adjusted time among the processing so as to minmuize the total weighted completion time of jobs. Firstly, a time-indexed formulation is showed and we provide a column generation algorithm for the problem. Then we propose an approximation scheme based the time-indexed formulation. Our algorithms are capable of optmally solving medium sized problem within a resonable computational time.[著者文摘]
Key words:
Operations research, column generation, totally unimodular, branch and bound, approximation scheme, NP-hardness
基金资助:
本文由国家自然科学基金(10371071),上海市自然科学基金(03ZR14039)资助.

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