Where to Intervene: Action Selection in Deep Reinforcement Learning
Abstract: Deep reinforcement learning (RL) has gained widespread adoption in recent years but faces significant challenges, particularly in unknown and complex environments. Among these, *high-dimensional action selection* stands out as a critical problem. Existing works often require a sophisticated prior design to eliminate redundancy in the action space, relying heavily on domain expert experience or involving high computational complexity, which limits their generalizability across different RL tasks. In this paper, we address these challenges by proposing a general data-driven action selection approach with model-free and computational-friendly properties. Our method not only *selects minimal sufficient actions* but also *controls the false discovery rate* via knockoff sampling. More importantly, we seamlessly integrate the action selection into deep RL methods during online training. Empirical experiments validate the established theoretical guarantees, demonstrating that our method surpasses various alternative techniques in terms of both performances in variable selection and overall achieved rewards.
Submission Length: Regular submission (no more than 12 pages of main content)
Assigned Action Editor: ~Huazheng_Wang1
Submission Number: 3751
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