Determining optimal multilevel Monte Carlo parameters with application to fault tolerance
Determining optimal multilevel Monte Carlo parameters with application to fault tolerance
复制标题
确定最佳多级蒙特卡罗参数并应用于容错
DOI:
10.1016/j.camwa.2015.07.011
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
P. Arbenz
中科院分区:
文献类型:
--
作者:
Stefan Pauli;P. Arbenz
The multilevel Monte Carlo (MLMC) method is characterized by a number of parameters, most notably the number of levels and the number of samples per level. We propose to determine these quantities by solving an integer optimization problem that minimizes the work or the error of the MLMC simulation. A branch-and-bound algorithm to solve these optimization problems is proposed and analyzed.We investigate a fault tolerant MLMC method, in which samples affected by (hard) faults are discarded or replaced, depending on the statistical requirements. As the failure rate increases more and more samples are lost. Thus, the average work to successfully complete a certain number of samples increases. The proposed optimization procedure can react on experienced faults and adapt the number of samples and levels accordingly. Numerical experiments demonstrate the effectiveness of the approach.
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影响因子:
2.7
作者:
Giles, Michael B.
通讯作者:
Giles, Michael B.
影响因子:
--
作者:
Cliffe, K. A.;Giles, M. B.;Teckentrup, A. L.
通讯作者:
Teckentrup, A. L.
影响因子:
14.2
作者:
Giles, Michael B.
通讯作者:
Giles, Michael B.
影响因子:
2.1
作者:
Barth, Andrea;Schwab, Christoph;Zollinger, Nathaniel
通讯作者:
Zollinger, Nathaniel