Cited by 9,643Simulation Techniques and ApplicationsProbability and Statistical ResearchOptimal Experimental Design Methods

A Stochastic Approximation Method

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Robbins, Herbert, Monro, Sutton·1951·The Annals of Mathematical Statistics

Abstract

Let $M(x)$ denote the expected value at level $x$ of the response to a certain experiment. $M(x)$ is assumed to be a monotone function of $x$ but is unknown to the experimenter, and it is desired to find the solution $x = \theta$ of the equation $M(x) = \alpha$, where $\alpha$ is a given constant. We give a method for making successive experiments at levels $x_1,x_2,\cdots$ in such a way that $x_n$ will tend to $\theta$ in probability.

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  • The stochastic approximation term should scale as the convergence rate of stochastic first order methods, lower-bounded by 1/D^{1/2}.

    “the third term should scale as the convergence rate of these methods, which is lower-bounded by 1 𝐷 1 2 (Robbins and Monro, 1951) (and may attain the bound).”

    From Training Compute-Optimal Large Language Models (2022) · cites this paper as Robbins and Monro, 1951

    The Summary (p. 1) and Convergence theorems (pp. 2–5) establish convergence of a stochastic approximation procedure, but the readable passages do not give a 1/√D lower bound for the convergence rate of stochastic first-order methods. I searched for the rate, lower bound, and efficiency; several formulas in our copy are undecoded, so the claimed bound cannot be verified from it. (LLM, conf=0.72)

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Authors
Robbins, H., & Monro, S.
Venue
The Annals of Mathematical Statistics
Published
1951-09
Volume
22
Issue
3
Pages
400-407
ISSN
0003-4851 (ISSN-L)
OpenAlex
W1994616650
Cited by
9,643
References
0
Citations by year
2026: 474 · 2025: 650 · 2024: 726 · 2023: 726 · 2022: 644 · 2021: 859 · 2020: 821 · 2019: 683 · 2018: 407 · 2017: 259 · 2016: 279 · 2015: 262 · 2014: 272 · 2013: 191 · 2012: 195
FWCI
8.44
Type
journal article
Language
en
Open access
Locations
  • The Annals of Mathematical Statistics (publishedVersion)
  • Project Euclid (Cornell University) (submittedVersion)
Topics
  • Social Sciences › Decision Sciences › Management Science and Operations Research › Simulation Techniques and Applications
  • Physical Sciences › Mathematics › Statistics and Probability › Probability and Statistical Research
  • Social Sciences › Decision Sciences › Management Science and Operations Research › Optimal Experimental Design Methods
Keywords
stochastic approximation, root finding, monotone functions, expected value, sequential experiments, convergence in probability, optimal experiment design

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