作者
Arkadi Nemirovski, Anatoli Juditsky, Guanghui Lan, Alexander Shapiro
发表日期
2009
期刊
SIAM Journal on optimization
卷号
19
期号
4
页码范围
1574-1609
出版商
Society for Industrial and Applied Mathematics
简介
In this paper we consider optimization problems where the objective function is given in a form of the expectation. A basic difficulty of solving such stochastic optimization problems is that the involved multidimensional integrals (expectations) cannot be computed with high accuracy. The aim of this paper is to compare two computational approaches based on Monte Carlo sampling techniques, namely, the stochastic approximation (SA) and the sample average approximation (SAA) methods. Both approaches, the SA and SAA methods, have a long history. Current opinion is that the SAA method can efficiently use a specific (say, linear) structure of the considered problem, while the SA approach is a crude subgradient method, which often performs poorly in practice. We intend to demonstrate that a properly modified SA approach can be competitive and even significantly outperform the SAA method for a certain class …
引用总数
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学术搜索中的文章
A Nemirovski, A Juditsky, G Lan, A Shapiro - SIAM Journal on optimization, 2009