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Offline reinforcement learning (RL) enables policy learning from static data but often suffers from poor coverage of the state-action space and distributional shift problems. This problem can be addressed by allowing limited online…

Machine Learning · Computer Science 2026-02-03 Soumyadeep Roy , Shashwat Kushwaha , Ambedkar Dukkipati

Offline reinforcement learning is used to train policies in scenarios where real-time access to the environment is expensive or impossible. As a natural consequence of these harsh conditions, an agent may lack the resources to fully observe…

Machine Learning · Computer Science 2021-12-09 Jayanth Reddy Regatti , Aniket Anand Deshmukh , Frank Cheng , Young Hun Jung , Abhishek Gupta , Urun Dogan

Sample efficiency is critical when applying learning-based methods to robotic manipulation due to the high cost of collecting expert demonstrations and the challenges of on-robot policy learning through online Reinforcement Learning (RL).…

Machine Learning · Computer Science 2024-06-21 Arsh Tangri , Ondrej Biza , Dian Wang , David Klee , Owen Howell , Robert Platt

Offline reinforcement learning (RL) aims to optimize the return given a fixed dataset of agent trajectories without additional interactions with the environment. While algorithm development has progressed rapidly, significant theoretical…

Machine Learning · Computer Science 2025-08-12 Fengdi Che

Offline reinforcement learning (RL) algorithms are applied to learn performant, well-generalizing policies when provided with a static dataset of interactions. Many recent approaches to offline RL have seen substantial success, but with one…

Machine Learning · Computer Science 2024-07-30 Padmanaba Srinivasan , William Knottenbelt

Offline reinforcement learning (RL) algorithms can acquire effective policies by utilizing previously collected experience, without any online interaction. It is widely understood that offline RL is able to extract good policies even from…

Machine Learning · Computer Science 2022-04-13 Aviral Kumar , Joey Hong , Anikait Singh , Sergey Levine

Offline reinforcement learning (RL) represents a significant shift in RL research, allowing agents to learn from pre-collected datasets without further interaction with the environment. A key, yet underexplored, challenge in offline RL is…

Machine Learning · Computer Science 2025-02-27 Yiqin Yang , Quanwei Wang , Chenghao Li , Hao Hu , Chengjie Wu , Yuhua Jiang , Dianyu Zhong , Ziyou Zhang , Qianchuan Zhao , Chongjie Zhang , Xu Bo

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

Offline reinforcement learning learns an effective policy on offline datasets without online interaction, and it attracts persistent research attention due to its potential of practical application. However, extrapolation error generated by…

Machine Learning · Computer Science 2023-01-18 Ke Jiang , Jiayu Yao , Xiaoyang Tan

Offline reinforcement learning (RL) refers to the problem of learning policies entirely from a large batch of previously collected data. This problem setting offers the promise of utilizing such datasets to acquire policies without any…

Machine Learning · Computer Science 2020-11-24 Tianhe Yu , Garrett Thomas , Lantao Yu , Stefano Ermon , James Zou , Sergey Levine , Chelsea Finn , Tengyu Ma

Offline reinforcement learning (RL) defines the task of learning from a static logged dataset without continually interacting with the environment. The distribution shift between the learned policy and the behavior policy makes it necessary…

Machine Learning · Computer Science 2024-02-22 Jiafei Lyu , Xiaoteng Ma , Xiu Li , Zongqing Lu

Offline reinforcement learning (RL) has emerged as a prevalent and effective methodology for real-world recommender systems, enabling learning policies from historical data and capturing user preferences. In offline RL, reward shaping…

Information Retrieval · Computer Science 2025-07-01 Wenzheng Shu , Yanxiang Zeng , Yongxiang Tang , Teng Sha , Ning Luo , Yanhua Cheng , Xialong Liu , Fan Zhou , Peng Jiang

The goal of an offline reinforcement learning (RL) algorithm is to learn optimal polices using historical (offline) data, without access to the environment for online exploration. One of the main challenges in offline RL is the distribution…

Machine Learning · Computer Science 2023-10-31 Kishan Panaganti , Zaiyan Xu , Dileep Kalathil , Mohammad Ghavamzadeh

Off-policy reinforcement learning (RL) using a fixed offline dataset of logged interactions is an important consideration in real world applications. This paper studies offline RL using the DQN replay dataset comprising the entire replay…

Machine Learning · Computer Science 2020-11-25 Rishabh Agarwal , Dale Schuurmans , Mohammad Norouzi

In offline reinforcement learning, weighted regression is a common method to ensure the learned policy stays close to the behavior policy and to prevent selecting out-of-sample actions. In this work, we show that due to the limited…

Machine Learning · Computer Science 2023-03-01 Huayu Chen , Cheng Lu , Chengyang Ying , Hang Su , Jun Zhu

The application of Reinforcement Learning (RL) in real world environments can be expensive or risky due to sub-optimal policies during training. In Offline RL, this problem is avoided since interactions with an environment are prohibited.…

The core challenge of offline reinforcement learning (RL) is dealing with the (potentially catastrophic) extrapolation error induced by the distribution shift between the history dataset and the desired policy. A large portion of prior work…

Machine Learning · Computer Science 2023-07-27 Laixi Shi , Robert Dadashi , Yuejie Chi , Pablo Samuel Castro , Matthieu Geist

Offline-to-online reinforcement learning (RL) has emerged as a practical paradigm that leverages offline datasets for pretraining and online interactions for fine-tuning. However, its empirical behavior is highly inconsistent: design…

Machine Learning · Computer Science 2026-02-03 Lu Li , Tianwei Ni , Yihao Sun , Pierre-Luc Bacon

Offline reinforcement learning enables learning from a fixed dataset, without further interactions with the environment. The lack of environmental interactions makes the policy training vulnerable to state-action pairs far from the training…

Machine Learning · Statistics 2022-10-11 Shentao Yang , Zhendong Wang , Huangjie Zheng , Yihao Feng , Mingyuan Zhou

Model-based offline reinforcement learning (RL) aims to find highly rewarding policy, by leveraging a previously collected static dataset and a dynamics model. While the dynamics model learned through reuse of the static dataset, its…

Machine Learning · Computer Science 2022-11-01 Kaiyang Guo , Yunfeng Shao , Yanhui Geng