Confounding Robust Deep Reinforcement Learning: A Causal Approach

Fuente: arXiv
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Autori principali: Li, Mingxuan, Zhang, Junzhe, Bareinboim, Elias
Natura: Preprint
Pubblicazione: 2025
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author Li, Mingxuan
Zhang, Junzhe
Bareinboim, Elias
author_facet Li, Mingxuan
Zhang, Junzhe
Bareinboim, Elias
contents A key task in Artificial Intelligence is learning effective policies for controlling agents in unknown environments to optimize performance measures. Off-policy learning methods, like Q-learning, allow learners to make optimal decisions based on past experiences. This paper studies off-policy learning from biased data in complex and high-dimensional domains where \emph{unobserved confounding} cannot be ruled out a priori. Building on the well-celebrated Deep Q-Network (DQN), we propose a novel deep reinforcement learning algorithm robust to confounding biases in observed data. Specifically, our algorithm attempts to find a safe policy for the worst-case environment compatible with the observations. We apply our method to twelve confounded Atari games, and find that it consistently dominates the standard DQN in all games where the observed input to the behavioral and target policies mismatch and unobserved confounders exist.
format Preprint
id arxiv_https___arxiv_org_abs_2510_21110
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Confounding Robust Deep Reinforcement Learning: A Causal Approach
Li, Mingxuan
Zhang, Junzhe
Bareinboim, Elias
Artificial Intelligence
A key task in Artificial Intelligence is learning effective policies for controlling agents in unknown environments to optimize performance measures. Off-policy learning methods, like Q-learning, allow learners to make optimal decisions based on past experiences. This paper studies off-policy learning from biased data in complex and high-dimensional domains where \emph{unobserved confounding} cannot be ruled out a priori. Building on the well-celebrated Deep Q-Network (DQN), we propose a novel deep reinforcement learning algorithm robust to confounding biases in observed data. Specifically, our algorithm attempts to find a safe policy for the worst-case environment compatible with the observations. We apply our method to twelve confounded Atari games, and find that it consistently dominates the standard DQN in all games where the observed input to the behavioral and target policies mismatch and unobserved confounders exist.
title Confounding Robust Deep Reinforcement Learning: A Causal Approach
topic Artificial Intelligence
url https://arxiv.org/abs/2510.21110