Optimal Rates for Bandit Nonstochastic Control
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Abstract (arXiv)
Linear Quadratic Regulator (LQR) and Linear Quadratic Gaussian (LQG) control are foundational and extensively researched problems in optimal control. We investigate LQR and LQG problems with semi-adversarial perturbations and time-varying adversarial bandit loss functions. The best-known sublinear regret algorithm of citegradu2020non has a T^frac34 time horizon dependence, and its authors posed an open question about whether a tight rate of √T could be achieved. We answer in the affirmative, giving an algorithm for bandit LQR and LQG which attains optimal regret (up to logarithmic factors) for both known and unknown systems. A central component of our method is a new scheme for bandit convex optimization with memory, which is of independent interest.
Key facts. Cited by 7 papers in the map (data through 7 Oct 2026). Builds on 21 of its 38 references that are in the map. First posted on arXiv 24 May 2023.
Builds on
21 of 38 references.
References · 21
- 2019Introduction to Online Convex Optimizationcited by 793
- 2020Naive Exploration is Optimal for Online LQRcited by 111
- 2019Online Control with Adversarial Disturbancescited by 92
- 2018Regret Bounds for Robust Adaptive Control of the Linear Quadratic Regulatorcited by 86
- 2020Improper Learning for Non-Stochastic Controlcited by 83
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- 2019The Nonstochastic Control Problemcited by 52
- 2020Black-Box Control for Linear Dynamical Systemscited by 43
- 2020Logarithmic Regret for Adversarial Online Controlcited by 41
- 2019Logarithmic Regret for Online Controlcited by 38
- 2020Logarithmic Regret for Learning Linear Quadratic Regulators Efficientlycited by 33
- 2021Online Learning with Optimism and Delaycited by 33
9 more
- 2020Making Non-Stochastic Control (Almost) as Easy as Stochasticcited by 24
- 2020Non-Stochastic Control with Bandit Feedbackcited by 17
- 2013Efficient Reinforcement Learning for High Dimensional Linear Quadratic Systemscited by 13
- 2020Bandit Linear Controlcited by 10
- 2021Deluca -- A Differentiable Control Library: Environments, Methods, and Benchmarkingcited by 10
- 2021Online Policy Gradient for Model Free Learning of Linear Quadratic Regulators with √T Regretcited by 10
- 2020Geometric Exploration for Online Controlcited by 9
- 2021Robust Online Control with Model Misspecificationcited by 4
- 2023A Nonstochastic Control Approach to Optimizationcited by 4
Built on by
Citing papers per year: 2023: 1; 2024: 3; 2025: 1; 2026: 2.
7 papers.
- 2024Improved Regret for Bandit Convex Optimization with Delayed Feedbackcited by 8
- 2024Second Order Methods for Bandit Optimization and Controlcited by 5
- 2023Online Nonstochastic Model-Free Reinforcement Learningcited by 2
- 2024Tight Rates for Bandit Control Beyond Quadraticscited by 2
- 2025A New Approach to Controlling Linear Dynamical Systemscited by 2
- 2026A Spectral Filtering Approach to Regret Analysis of Distributed Online Control for Linear Dynamical Systemscited by 0
- 2026Block Optimism for Nonstationary Bandits with Latent Linear Dynamicscited by 0
- 2026Block Optimism for Nonstationary Bandits with Latent Linear Dynamics1 Oct 2026
- 2026A Spectral Filtering Approach to Regret Analysis of Distributed Online Control for Linear Dynamical Systems3 Aug 2026
- 2025A New Approach to Controlling Linear Dynamical Systems4 Apr 2025
- 2024Tight Rates for Bandit Control Beyond Quadratics1 Oct 2024
- 2024Improved Regret for Bandit Convex Optimization with Delayed Feedback14 Feb 2024
- 2024Second Order Methods for Bandit Optimization and Control14 Feb 2024
- 2023Online Nonstochastic Model-Free Reinforcement Learning27 May 2023