Stochastic makespan minimization in structured set systems
Stochastic makespan minimization in structured set systems
复制标题
结构化集合系统中的随机完工时间最小化
DOI:
10.1007/s10107-021-01741-z
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发表时间:
2022
影响因子:
2.7
通讯作者:
Shen, Xiangkun
中科院分区:
文献类型:
--
作者:
Gupta, Anupam;Kumar, Amit;Nagarajan, Viswanath;Shen, Xiangkun
We study stochastic combinatorial optimization problems where the objective is to minimize the expected maximum load (a.k.a. the makespan). In this framework, we have a set ofntasks andmresources, where each taskjuses some subset of the resources. Tasks have random sizes, and our goal is to non-adaptively selectttasks to minimize the expected maximum load over all resources, where the load on any resourceiis the total size of all selected tasks that usei. For example, when resources are points and tasks are intervals in a line, we obtain an-approximation algorithm. Our technique is also applicable to other problems with some geometric structure in the relation between tasks and resources; e.g., packing paths, rectangles, and “fat” objects. Our approach uses a strong LP relaxation using the cumulant generating functions of the random variables. We also show that this LP has anintegrality gap, even for the problem of selecting intervals on a line; hereis the iterated logarithm function.
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DOI:
10.1137/1.9781611976465.54
发表时间:
2020
期刊:
SIAM J. Comput.
影响因子:
--
作者:
Parinya Chalermsook;Bartosz Walczak
通讯作者:
Bartosz Walczak
DOI:
10.1137/1.9781611973068.97
发表时间:
2009
期刊:
SIAM J. Comput.
影响因子:
--
作者:
Parinya Chalermsook;Julia Chuzhoy
通讯作者:
Julia Chuzhoy
DOI:
10.1137/1.9781611975031.83
发表时间:
2018-01
期刊:
ArXiv
影响因子:
--
作者:
Anupam Gupta;Amit Kumar;V. Nagarajan;Xiangkun Shen
通讯作者:
Anupam Gupta;Amit Kumar;V. Nagarajan;Xiangkun Shen
DOI:
10.1137/120891241
发表时间:
2014
期刊:
SIAM J. Comput.
影响因子:
--
作者:
B. Aronov;M. D. Berg;Esther Ezra;M. Sharir
通讯作者:
M. Sharir
DOI:
10.4230/lipics.approx-random.2015.43
发表时间:
2015
期刊:
IEEE International Conference on Communications, - Spanning the Universe.
影响因子:
--
作者:
Anna Adamaszek;Parinya Chalermsook;Andreas Wiese
通讯作者:
Andreas Wiese