arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.12388cs.DS
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具有公共交货期的同类平行机提前排序问题的改进近似算法

Improved approximation schemes for early work scheduling on identical parallel machines with common due date

Weidong Li

摘要:

本文研究了以最大化总提前工作量为目标的同类平行机提前工作排序问题,在一个共同的到期日之前执行的非抢占式作业的部分。通过预处理和构造具有多个良好性质的辅助实例,我们提出了一种高效的具有运行时间的多项式时间逼近方案$O(n)$,改进了[Györgyi,P.,Kis,T.(2020年)。早期工作、后期工作和资源均衡问题的通用近似框架。{ \it European Journal of Operational Research},286(1),129-137],以及当机器的数量是固定数量时具有运行时间的完全多项式时间近似方案$O(n)$,其改进了[Chen,X.,梁玉,Sterna,M.,王伟,Baewicz,J.(2020 b)。在具有共同交货期的并行机上最大化早期工作的全多项式时间近似方案。{ \it European Journal of Operational Research},284(1),67-74],其中$n$是作业的数量,隐藏常数取决于所需的精度。

英文摘要:

We study the early work scheduling problem on identical parallel machines in order to maximize the total early work, i.e., the parts of non-preemptive jobs executed before a common due date. By preprocessing and constructing an auxiliary instance which has several good properties, we propose an efficient polynomial time approximation scheme with running time $O(n)$, which improves the result in [Györgyi, P., Kis, T. (2020). A common approximation framework for early work, late work, and resource leveling problems. {\it European Journal of Operational Research}, 286(1), 129-137], and a fully polynomial time approximation scheme with running time $O(n)$ when the number of machines is a fixed number, which improves the result in [Chen, X., Liang, Y., Sterna, M., Wang, W., Błażewicz, J. (2020b). Fully polynomial time approximation scheme to maximize early work on parallel machines with common due date. {\it European Journal of Operational Research}, 284(1), 67-74], where $n$ is the number of jobs, and the hidden constant depends on the desired accuracy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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