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Two-agent single-machine scheduling with release dates to minimize the makespan

Two-agent single-machine scheduling with release dates to minimize the makespan We consider two-agent scheduling on a single-machine with release dates. There are two agents, namely, A and B. Each agent has his own job set. Each job has a release date and a processing time. All jobs need to be scheduled on a single machine. The objective function of each agent is the makespan with respect to his jobs, i.e., the maximum completion time. We consider two problems, namely the problem to minimize the makespans of agent A with the makespan of agent B not greater than a positive number Q given in advance, and the problem to minimize the weighted sum of both agents’ makespans. For the first problem, we drive an approximation algorithm with a worst-case ratio of 32\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\frac{3}{2}$$\end{document}. Furthermore, we show that this problem admits a fully polynomial-time approximation scheme(FPTAS). For the second problem, we propose an improved approximation algorithm with a worst-case ratio of 1+θ(1+θ)2\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$1 +\frac{\theta }{(1+\theta )^2}$$\end{document}, where θ>0\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\theta >0$$\end{document} is the weight of agent B. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Optimization Letters Springer Journals

Two-agent single-machine scheduling with release dates to minimize the makespan

Optimization Letters , Volume 17 (8) – Nov 1, 2023

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References (32)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
1862-4472
eISSN
1862-4480
DOI
10.1007/s11590-022-01967-6
Publisher site
See Article on Publisher Site

Abstract

We consider two-agent scheduling on a single-machine with release dates. There are two agents, namely, A and B. Each agent has his own job set. Each job has a release date and a processing time. All jobs need to be scheduled on a single machine. The objective function of each agent is the makespan with respect to his jobs, i.e., the maximum completion time. We consider two problems, namely the problem to minimize the makespans of agent A with the makespan of agent B not greater than a positive number Q given in advance, and the problem to minimize the weighted sum of both agents’ makespans. For the first problem, we drive an approximation algorithm with a worst-case ratio of 32\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\frac{3}{2}$$\end{document}. Furthermore, we show that this problem admits a fully polynomial-time approximation scheme(FPTAS). For the second problem, we propose an improved approximation algorithm with a worst-case ratio of 1+θ(1+θ)2\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$1 +\frac{\theta }{(1+\theta )^2}$$\end{document}, where θ>0\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\theta >0$$\end{document} is the weight of agent B.

Journal

Optimization LettersSpringer Journals

Published: Nov 1, 2023

Keywords: Two-agent scheduling; Makespan; Release date; Approximation algorithm; FPTAS

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