A general framework for handling commitment in online throughput maximization
A general framework for handling commitment in online throughput maximization
复制标题
处理在线吞吐量最大化承诺的通用框架
DOI:
10.1007/s10107-020-01469-2
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发表时间:
2020
影响因子:
2.7
通讯作者:
Stein, Cliff
中科院分区:
文献类型:
--
作者:
Chen, Lin;Eberle, Franziska;Megow, Nicole;Schewior, Kevin;Stein, Cliff
We study a fundamental online job admission problem where jobs with deadlines arrive online over time at their release dates, and the task is to determine a preemptive single-server schedule which maximizes the number of jobs that complete on time. To circumvent known impossibility results, we make a standard slackness assumption by which the feasible time window for scheduling a job is at leasttimes its processing time, for some. We quantify the impact that different provider commitment requirements have on the performance of online algorithms. Our main contribution is one universal algorithmic framework for online job admission both with and without commitments. Without commitment, our algorithm with a competitive ratio ofis the best possible (deterministic) for this problem. For commitment models, we give the first non-trivial performance bounds. If the commitment decisions must be made before a job’s slack becomes less than a-fraction of its size, we prove a competitive ratio of, for. When a provider must commit upon starting a job, our bound is. Finally, we observe that for scheduling with commitment the restriction to the “unweighted” throughput model is essential; if jobs have individual weights, we rule out competitive deterministic algorithms.
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DOI:
10.1007/978-3-642-15369-3_27
发表时间:
2010
期刊:
SIAM J. Comput.
影响因子:
--
作者:
K. Pruhs;C. Stein
通讯作者:
C. Stein
DOI:
10.1145/2935764.2935786
发表时间:
2016-07
期刊:
Proceedings of the 28th ACM Symposium on Parallelism in Algorithms and Architectures
影响因子:
--
作者:
Lin Chen;Nicole Megow;Kevin Schewior
通讯作者:
Lin Chen;Nicole Megow;Kevin Schewior
DOI:
10.1109/real.1993.393503
发表时间:
1993
期刊:
1993 Proceedings Real-Time Systems Symposium
影响因子:
--
作者:
G. Koren;D. Shasha
通讯作者:
D. Shasha
影响因子:
1.1
作者:
N. Bansal;H. Chan;K. Pruhs
通讯作者:
K. Pruhs
DOI:
--
发表时间:
2018
期刊:
LATIN 2018: Theoretical Informatics
影响因子:
--
作者:
Agrawal, Kunal;Li, Jing;Lu, Kefu;Moseley, Benjamin
通讯作者:
Moseley, Benjamin