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Summary of Asymptotic Time-uniform Inference For Parameters in Averaged Stochastic Approximation, by Chuhan Xie et al.


Asymptotic Time-Uniform Inference for Parameters in Averaged Stochastic Approximation

by Chuhan Xie, Kaicheng Jin, Jiadong Liang, Zhihua Zhang

First submitted to arxiv on: 19 Oct 2024

Categories

  • Main: Machine Learning (stat.ML)
  • Secondary: Machine Learning (cs.LG); Methodology (stat.ME)

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GrooveSquid.com Paper Summaries

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
The paper investigates statistical inference for parameters in stochastic approximation (SA), a broad field encompassing optimization and machine learning applications. The authors analyze the convergence rates of averaged iterates in linear and nonlinear SA problems, leading to the development of three types of asymptotic confidence sequences with uniform coverage guarantees across all times. These guarantees remain valid when replacing the unknown covariance matrix with its plug-in estimator. Experiments validate the proposed methodology.
Low GrooveSquid.com (original content) Low Difficulty Summary
This paper studies how to make accurate predictions about things that change over time in machine learning and optimization problems. The researchers figure out how quickly averages of random numbers get close to a certain target, then they create special tools to estimate where this target is with confidence. They test their ideas and show they work well.

Keywords

» Artificial intelligence  » Inference  » Machine learning  » Optimization