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The goal of offline reinforcement learning is to learn a policy from a fixed dataset, without further interactions with the environment. This setting will be an increasingly more important paradigm for real-world applications of…

Robotics · Computer Science 2020-11-17 Wenxuan Zhou , Sujay Bajracharya , David Held

Traditional offline reinforcement learning (RL) methods predominantly operate in a batch-constrained setting. This confines the algorithms to a specific state-action distribution present in the dataset, reducing the effects of…

Machine Learning · Statistics 2025-07-16 Charles A. Hepburn , Yue Jin , Giovanni Montana

Offline Goal-Conditioned RL (GCRL) offers a feasible paradigm for learning general-purpose policies from diverse and multi-task offline datasets. Despite notable recent progress, the predominant offline GCRL methods, mainly model-free, face…

Machine Learning · Computer Science 2024-05-17 Mianchu Wang , Rui Yang , Xi Chen , Hao Sun , Meng Fang , Giovanni Montana

Offline reinforcement learning (RL) aims to optimize a policy by using pre-collected datasets, to maximize cumulative rewards. However, offline reinforcement learning suffers challenges due to the distributional shift between the learned…

Machine Learning · Computer Science 2025-03-10 Yunkai Gao , Jiaming Guo , Fan Wu , Rui Zhang

Offline reinforcement learning (RL) is challenged by the distributional shift between learning policies and datasets. To address this problem, existing works mainly focus on designing sophisticated algorithms to explicitly or implicitly…

Machine Learning · Computer Science 2022-10-18 Yang Yue , Bingyi Kang , Xiao Ma , Zhongwen Xu , Gao Huang , Shuicheng Yan

Offline reinforcement learning (RL), also known as batch RL, offers the prospect of policy optimization from large pre-recorded datasets without online environment interaction. It addresses challenges with regard to the cost of data…

Offline Reinforcement Learning promises to learn effective policies from previously-collected, static datasets without the need for exploration. However, existing Q-learning and actor-critic based off-policy RL algorithms fail when…

Machine Learning · Computer Science 2021-05-19 Yue Wu , Shuangfei Zhai , Nitish Srivastava , Joshua Susskind , Jian Zhang , Ruslan Salakhutdinov , Hanlin Goh

This study proposes the use of a social learning method to estimate a global state within a multi-agent off-policy actor-critic algorithm for reinforcement learning (RL) operating in a partially observable environment. We assume that the…

Machine Learning · Computer Science 2024-07-09 Ainur Zhaikhan , Ali H. Sayed

Recent work has demonstrated the effectiveness of formulating decision making as supervised learning on offline-collected trajectories. Powerful sequence models, such as GPT or BERT, are often employed to encode the trajectories. However,…

Machine Learning · Computer Science 2023-10-31 Zilai Zeng , Ce Zhang , Shijie Wang , Chen Sun

In this paper, we propose a model-based offline reinforcement learning method that integrates count-based conservatism, named $\texttt{Count-MORL}$. Our method utilizes the count estimates of state-action pairs to quantify model estimation…

Machine Learning · Computer Science 2023-07-24 Byeongchan Kim , Min-hwan Oh

Offline policy learning is aimed at learning decision-making policies using existing datasets of trajectories without collecting additional data. The primary motivation for using reinforcement learning (RL) instead of supervised learning…

Offline reinforcement learning (RL) aims to learn a policy that maximizes the expected return using a given static dataset of transitions. However, offline RL faces the distribution shift problem. The policy constraint offline RL method is…

Machine Learning · Computer Science 2025-12-24 Yuanhao Chen , Qi Liu , Pengbin Chen , Zhongjian Qiao , Yanjie Li

Many practical applications of reinforcement learning constrain agents to learn from a fixed batch of data which has already been gathered, without offering further possibility for data collection. In this paper, we demonstrate that due to…

Machine Learning · Computer Science 2019-08-13 Scott Fujimoto , David Meger , Doina Precup

Offline reinforcement learning (RL) is a compelling paradigm to extend RL's practical utility by leveraging pre-collected, static datasets, thereby avoiding the limitations associated with collecting online interactions. The major…

Machine Learning · Computer Science 2024-06-10 Yutaka Shimizu , Joey Hong , Sergey Levine , Masayoshi Tomizuka

Offline reinforcement learning (RL) aims to optimize a policy using collected data without online interactions. Model-based approaches are particularly appealing for addressing offline RL challenges because of their capability to mitigate…

Machine Learning · Computer Science 2026-04-14 Hao Li , Xiao-Hu Zhou , Shu-Hai Li , Mei-Jiang Gui , Xiao-Liang Xie , Shi-Qi Liu , Shuang-Yi Wang , Zhen-Qiu Feng , Zeng-Guang Hou

Offline reinforcement learning (RL) enables agents to learn policies from fixed datasets, avoiding costly or unsafe environment interactions. However, its effectiveness is often limited by dataset sparsity and the lack of transition overlap…

Artificial Intelligence · Computer Science 2025-07-22 Lu Guo , Yixiang Shan , Zhengbang Zhu , Qifan Liang , Lichang Song , Ting Long , Weinan Zhang , Yi Chang

Off-policy reinforcement learning (RL) has achieved notable success in tackling many complex real-world tasks, by leveraging previously collected data for policy learning. However, most existing off-policy RL algorithms fail to maximally…

Machine Learning · Computer Science 2024-05-30 Yu Luo , Tianying Ji , Fuchun Sun , Jianwei Zhang , Huazhe Xu , Xianyuan Zhan

While many real-world problems that might benefit from reinforcement learning, these problems rarely fit into the MDP mold: interacting with the environment is often expensive and specifying reward functions is challenging. Motivated by…

Machine Learning · Computer Science 2023-07-26 Kyle Hatch , Benjamin Eysenbach , Rafael Rafailov , Tianhe Yu , Ruslan Salakhutdinov , Sergey Levine , Chelsea Finn

The Job Shop Scheduling Problem (JSSP) is a complex combinatorial optimization problem. While online Reinforcement Learning (RL) has shown promise by quickly finding acceptable solutions for JSSP, it faces key limitations: it requires…

Machine Learning · Computer Science 2025-07-04 Jesse van Remmerden , Zaharah Bukhsh , Yingqian Zhang

Reinforcement Learning (RL) has been shown effective in domains where the agent can learn policies by actively interacting with its operating environment. However, if we change the RL scheme to offline setting where the agent can only…

Machine Learning · Computer Science 2021-11-11 Jinning Li , Chen Tang , Masayoshi Tomizuka , Wei Zhan