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Stochastic First- and Zeroth-Order Methods for Nonconvex Stochastic Programming

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Ghadimi, Saeed, Lan, Guanghui·2013·SIAM Journal on Optimization

Abstract

In this paper, we introduce a new stochastic approximation type algorithm, namely, the randomized stochastic gradient (RSG) method, for solving an important class of nonlinear (possibly nonconvex) stochastic programming problems. We establish the complexity of this method for computing an approximate stationary point of a nonlinear programming problem. We also show that this method possesses a nearly optimal rate of convergence if the problem is convex. We discuss a variant of the algorithm which consists of applying a postoptimization phase to evaluate a short list of solutions generated by several independent runs of the RSG method, and we show that such modification allows us to improve significantly the large-deviation properties of the algorithm. These methods are then specialized for solving a class of simulation-based optimization problems in which only stochastic zeroth-order information is available.

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Metadata

Authors
Ghadimi, S., & Lan, G.
Venue
SIAM Journal on Optimization
Published
2013-01
Volume
23
Issue
4
Pages
2341-2368
ISSN
  • 1052-6234 (ISSN-L)
  • 1095-7189
OpenAlex
W2963470657
Cited by
1,034
References
3
FWCI
15.83
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Stochastic First- and Zeroth-Order Methods for Nonconvex Stochastic Programming. https://app.cochat.ai/papers/10.1137/120880811
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Ghadimi, S., & Lan, G. (2013). Stochastic First- and Zeroth-Order Methods for Nonconvex Stochastic Programming. SIAM Journal on Optimization. https://doi.org/10.1137/120880811

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.