Offline Reinforcement Learning
Offline reinforcement learning (RL) aims to train agents using pre-collected data, eliminating the need for costly and potentially risky online interactions with the environment. Current research focuses on addressing challenges like distributional shift (mismatch between training and target data) and improving generalization across diverse tasks, employing model architectures such as transformers, convolutional networks, and diffusion models, along with algorithms like conservative Q-learning and decision transformers. These advancements are significant for deploying RL in real-world applications where online learning is impractical or unsafe, impacting fields ranging from robotics and healthcare to personalized recommendations and autonomous systems.
Papers
Offline Policy Evaluation and Optimization under Confounding
Chinmaya Kausik, Yangyi Lu, Kevin Tan, Maggie Makar, Yixin Wang, Ambuj Tewari
Behavior Estimation from Multi-Source Data for Offline Reinforcement Learning
Guoxi Zhang, Hisashi Kashima
Offline Reinforcement Learning with Closed-Form Policy Improvement Operators
Jiachen Li, Edwin Zhang, Ming Yin, Qinxun Bai, Yu-Xiang Wang, William Yang Wang