EARL-BO: Reinforcement Learning for Multi-Step Lookahead, High-Dimensional Bayesian Optimization
On the map: Deep reinforcement learning methods → RL theory and sample complexity
Abstract (arXiv)
To avoid myopic behavior, multi-step lookahead Bayesian optimization (BO) algorithms consider the sequential nature of BO and have demonstrated promising results in recent years. However, owing to the curse of dimensionality, most of these methods make significant approximations or suffer scalability issues. This paper presents a novel reinforcement learning (RL)-based framework for multi-step lookahead BO in high-dimensional black-box optimization problems. The proposed method enhances the scalability and decision-making quality of multi-step lookahead BO by efficiently solving the sequential dynamic program of the BO process in a near-optimal manner using RL. We first introduce an Attention-DeepSets encoder to represent the state of knowledge to the RL agent and subsequently propose a multi-task, fine-tuning procedure based on end-to-end (encoder-RL) on-policy learning. We evaluate the proposed method, EARL-BO (Encoder Augmented RL for BO), on synthetic benchmark functions and hyperparameter tuning problems, finding significantly improved performance compared to existing multi-step lookahead and high-dimensional BO methods.
Key facts. Cited by 6 papers in the map (data through 14 Oct 2026). Placed in RL theory and sample complexity, one of 15 directions in Deep reinforcement learning methods. Builds on 28 of its 49 references that are in the map. First posted on arXiv 31 Oct 2024.
Builds on
28 of 49 references.
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Built on by
Citing papers per year: 2025: 3; 2026: 3.
6 papers.
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- 2026BayMOTH: Bayesian optiMizatiOn with meTa-lookahead -- a simple approacH13 Apr 2026
- 2026Neural Nonmyopic Bayesian Optimization in Dynamic Cost Settings10 Jan 2026
- 2025Survey and Tutorial of Reinforcement Learning Methods in Process Systems Engineering28 Oct 2025
- 2025BOOST: A Data-Driven Framework for the Automated Joint Selection of Kernel and Acquisition Functions in Bayesian Optimization4 Aug 2025
- 2025Direct Regret Optimization in Bayesian Optimization9 Jul 2025
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