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单机排序问题的数学规划表示 被引量:9

Single Machine Scheduling Problems Formulated as Mathematical Programs
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摘要 本文把单机排序问题 1‖∑wjCj表述成一个二次规划,并把不带权的问题1‖∑Cj进一步转化成指派问题,从而用指派问题的匈牙利算法证明 SPT序是问题1‖∑Cj的最优解.这个结论似乎很平凡,但对于用数学规划来研究排序问题是一个很有意义的进展.这为我们用二次规划和半定规划来研究NP困难的排序问题的近似算法打下基础. In this paper we formulate the single machine scheduling problem 1‖∑wjCjas a quadratic program, and its special case 1‖∑Cj an assignment problem. Therefore it is proved by Hungary algorithm of the assignment problem that SPT sequence is an optimum for 1‖∑Cj.
出处 《应用数学与计算数学学报》 2000年第2期77-82,共6页 Communication on Applied Mathematics and Computation
基金 国家自然科学基金资助项目!(项目编号19771057).
关键词 单机排序问题 数学规划 指派问题 匈牙利算法 SPT序 二次规划 半定规划 Scheduling, Mathematical Programming, Assignment Problem.
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同被引文献47

  • 1张帆,李军,王钧,景宁.多目标最短路径进化求解方法[J].系统工程,2005,23(9):123-126. 被引量:7
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