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Offline reinforcement learning (RL) provides a promising approach to avoid costly online interaction with the real environment. However, the performance of offline RL highly depends on the quality of the datasets, which may cause…

Robotics · Computer Science 2024-05-08 Yiwen Hou , Haoyuan Sun , Jinming Ma , Feng Wu

The field of Offline Reinforcement Learning (RL) aims to derive effective policies from pre-collected datasets without active environment interaction. While traditional offline RL algorithms like Conservative Q-Learning (CQL) and Implicit…

Machine Learning · Computer Science 2025-11-21 Ali Murtaza Caunhye , Asad Jeewa

Offline reinforcement learning (RL) enables training from fixed data without online interaction, but policies learned offline often struggle when deployed in dynamic environments due to distributional shift and unreliable value estimates on…

Machine Learning · Computer Science 2025-11-06 Lipeng Zu , Hansong Zhou , Xiaonan Zhang

Offline reinforcement learning (RL) optimizes the policy on a previously collected dataset without any interactions with the environment, yet usually suffers from the distributional shift problem. To mitigate this issue, a typical solution…

Machine Learning · Computer Science 2023-09-06 Qisen Yang , Shenzhi Wang , Qihang Zhang , Gao Huang , Shiji Song

Reinforcement learning (RL) has shown promise for decision-making tasks in real-world applications. One practical framework involves training parameterized policy models from an offline dataset and subsequently deploying them in an online…

Machine Learning · Computer Science 2023-03-14 Ziniu Li , Ke Xu , Liu Liu , Lanqing Li , Deheng Ye , Peilin Zhao

Offline reinforcement learning (RL) tries to learn the near-optimal policy with recorded offline experience without online exploration. Current offline RL research includes: 1) generative modeling, i.e., approximating a policy using fixed…

Machine Learning · Computer Science 2021-06-23 Hua Wei , Deheng Ye , Zhao Liu , Hao Wu , Bo Yuan , Qiang Fu , Wei Yang , Zhenhui Li

Offline reinforcement learning (RL) allows agents to learn effective, return-maximizing policies from a static dataset. Three popular algorithms for offline RL are Conservative Q-Learning (CQL), Behavior Cloning (BC), and Decision…

Machine Learning · Computer Science 2024-03-13 Prajjwal Bhargava , Rohan Chitnis , Alborz Geramifard , Shagun Sodhani , Amy Zhang

We study the offline meta-reinforcement learning (OMRL) problem, a paradigm which enables reinforcement learning (RL) algorithms to quickly adapt to unseen tasks without any interactions with the environments, making RL truly practical in…

Machine Learning · Computer Science 2021-05-07 Lanqing Li , Rui Yang , Dijun Luo

Learning effective reinforcement learning (RL) policies to solve real-world complex tasks can be quite challenging without a high-fidelity simulation environment. In most cases, we are only given imperfect simulators with simplified…

Machine Learning · Computer Science 2025-10-16 Haoyi Niu , Shubham Sharma , Yiwen Qiu , Ming Li , Guyue Zhou , Jianming Hu , Xianyuan Zhan

Offline Reinforcement Learning (RL) aims to turn large datasets into powerful decision-making engines without any online interactions with the environment. This great promise has motivated a large amount of research that hopes to replicate…

Machine Learning · Computer Science 2020-12-01 Louis Monier , Jakub Kmec , Alexandre Laterre , Thomas Pierrot , Valentin Courgeau , Olivier Sigaud , Karim Beguir

One of the key challenges of Reinforcement Learning (RL) is the ability of agents to generalise their learned policy to unseen settings. Moreover, training RL agents requires large numbers of interactions with the environment. Motivated by…

Machine Learning · Computer Science 2024-12-10 Alain Andres , Lukas Schäfer , Stefano V. Albrecht , Javier Del Ser

Offline reinforcement learning (RL) struggles in environments with rich and noisy inputs, where the agent only has access to a fixed dataset without environment interactions. Past works have proposed common workarounds based on the…

Machine Learning · Computer Science 2023-03-01 Hongyu Zang , Xin Li , Jie Yu , Chen Liu , Riashat Islam , Remi Tachet Des Combes , Romain Laroche

This paper investigates a hybrid learning framework for reinforcement learning (RL) in which the agent can leverage both an offline dataset and online interactions to learn the optimal policy. We present a unified algorithm and analysis and…

Machine Learning · Computer Science 2025-07-01 Ruiquan Huang , Donghao Li , Chengshuai Shi , Cong Shen , Jing Yang

Most deep reinforcement learning (RL) systems are not able to learn effectively from off-policy data, especially if they cannot explore online in the environment. These are critical shortcomings for applying RL to real-world problems where…

Recent advance in deep offline reinforcement learning (RL) has made it possible to train strong robotic agents from offline datasets. However, depending on the quality of the trained agents and the application being considered, it is often…

Robotics · Computer Science 2021-11-02 Seunghyun Lee , Younggyo Seo , Kimin Lee , Pieter Abbeel , Jinwoo Shin

Offline reinforcement learning (RL) addresses the challenge of expensive and high-risk data exploration inherent in RL by pre-training policies on vast amounts of offline data, enabling direct deployment or fine-tuning in real-world…

Machine Learning · Computer Science 2024-08-13 Thanh Nguyen , Tung M. Luu , Tri Ton , Chang D. Yoo

Offline reinforcement learning (RL) aims to learn a policy from a static dataset without further interactions with the environment. Collecting sufficiently large datasets for offline RL is exhausting since this data collection requires…

Artificial Intelligence · Computer Science 2025-10-22 Jongchan Park , Mingyu Park , Donghwan Lee

Offline reinforcement learning (RL) enables the agent to effectively learn from logged data, which significantly extends the applicability of RL algorithms in real-world scenarios where exploration can be expensive or unsafe. Previous works…

Machine Learning · Computer Science 2022-12-05 Yiqin Yang , Hao Hu , Wenzhe Li , Siyuan Li , Jun Yang , Qianchuan Zhao , Chongjie Zhang

Deep reinforcement learning (DRL) is a promising approach to solve complex control tasks by learning policies through interactions with the environment. However, the training of DRL policies requires large amounts of training experiences,…

Machine Learning · Computer Science 2023-01-02 Hongpeng Cao , Mirco Theile , Federico G. Wyrwal , Marco Caccamo

In offline reinforcement learning, a policy is learned using a static dataset in the absence of costly feedback from the environment. In contrast to the online setting, only using static datasets poses additional challenges, such as…

Machine Learning · Computer Science 2025-12-16 Marvin Alles , Philip Becker-Ehmck , Patrick van der Smagt , Maximilian Karl