Online Risk-Averse Resource Allocation in Queuing Networks
Online Risk-Averse Resource Allocation in Queuing Networks
复制标题
排队网络中的在线风险规避资源分配
DOI:
10.1109/tem.2021.3052839
复制
发表时间:
2021
影响因子:
5.8
通讯作者:
Guodong Yu
中科院分区:
文献类型:
--
作者:
Guodong Yu
In this article, we address the online resource allocation problem in service queuing systems under uncertainty. In particular, the optimal control policy is derived by using the real-time data, i.e., without fully knowing information about the system state. We employ the conditional value-at-risk to achieve the minimum long-run average cost subject to the constraints on the risk of instability. Then, we can ensure the service ability of the system at a high level under such on-the-fly uncertainty. We show that the proposed model naturally leads to a minmax saddle point optimization problem. We first present an intuitive offline primal–dual learning method, which can achieve a desirable convergence rate. Then, we further improve the algorithm by learning the optimal Lagrange multiplier concerning the instantaneous system state, i.e., online primal–dual learning algorithm, to achieve the same convergence rate as the offline algorithm. Besides, we demonstrate that the proposed method outperforms classical models in providing the lower average delay under uncertainty, which means it can improve the stability and provide a better quality of service under the ambiguity of uncertainty. A real case of inpatient bed allocation for hospital operations is presented to show the performance in applications. The results show that our model can reduce the average wait with certain total available beds under uncertain arrivals.
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DOI:
10.1287/moor.1050.0186
发表时间:
2006-08
期刊:
Math. Oper. Res.
影响因子:
--
作者:
A. Ruszczynski;A. Shapiro
通讯作者:
A. Ruszczynski;A. Shapiro
DOI:
10.1287/moor.2013.0601
发表时间:
2014-02
期刊:
Math. Oper. Res.
影响因子:
--
作者:
N. Bäuerle;U. Rieder
通讯作者:
N. Bäuerle;U. Rieder
影响因子:
5.4
作者:
Nikola Vuči´c;H. Boche
通讯作者:
Nikola Vuči´c;H. Boche
DOI:
10.1137/141001251
发表时间:
2017-01
期刊:
SIAM J. Optim.
影响因子:
--
作者:
W. Haskell;J. Shanthikumar;Z. Shen
通讯作者:
W. Haskell;J. Shanthikumar;Z. Shen
DOI:
10.1145/2591971.2591990
发表时间:
2014-04
期刊:
--
影响因子:
--
作者:
Longbo Huang-;Xin Liu;Xiaohong Hao
通讯作者:
Longbo Huang-;Xin Liu;Xiaohong Hao