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Batch offline data have been shown considerably beneficial for reinforcement learning. Their benefit is further amplified by upsampling with generative models. In this paper, we consider a novel opportunity where interaction with…

机器学习 · 计算机科学 2024-10-04 Shangzhe Li , Xinhua Zhang

Leveraging offline data is a promising way to improve the sample efficiency of online reinforcement learning (RL). This paper expands the pool of usable data for offline-to-online RL by leveraging abundant non-curated data that is…

Offline reinforcement learning methods hold the promise of learning policies from pre-collected datasets without the need to query the environment for new transitions. This setting is particularly well-suited for continuous control robotic…

机器学习 · 计算机科学 2022-03-18 Xi Chen , Ali Ghadirzadeh , Tianhe Yu , Yuan Gao , Jianhao Wang , Wenzhe Li , Bin Liang , Chelsea Finn , Chongjie Zhang

The appearance of transformer-based models in Reinforcement Learning (RL) has expanded the horizons of possibilities in robotics tasks, but it has simultaneously brought a wide range of challenges during its implementation, especially in…

机器学习 · 计算机科学 2025-10-01 Daniil Zelezetsky , Alexey K. Kovalev , Aleksandr I. Panov

Offline reinforcement learning (RL) aims to find a near-optimal policy using pre-collected datasets. In real-world scenarios, data collection could be costly and risky; therefore, offline RL becomes particularly challenging when the…

机器学习 · 计算机科学 2024-12-18 Ruizhe Shi , Yuyao Liu , Yanjie Ze , Simon S. Du , Huazhe Xu

In this tutorial article, we aim to provide the reader with the conceptual tools needed to get started on research on offline reinforcement learning algorithms: reinforcement learning algorithms that utilize previously collected data,…

机器学习 · 计算机科学 2020-11-03 Sergey Levine , Aviral Kumar , George Tucker , Justin Fu

Offline reinforcement learning enables sample-efficient policy acquisition without risky online interaction, yet policies trained on static datasets remain brittle under action-space perturbations such as actuator faults. This study…

机器人学 · 计算机科学 2026-03-02 Shingo Ayabe , Hiroshi Kera , Kazuhiko Kawamoto

Reinforcement learning algorithms typically utilize an interactive simulator (i.e., environment) with a predefined reward function for policy training. Developing such simulators and manually defining reward functions, however, is often…

机器学习 · 计算机科学 2026-03-26 Woo-Jin Ahn , Sang-Ryul Baek , Yong-Jun Lee , Hyun-Duck Choi , Myo-Taeg Lim

We study the problem of offline pre-training and online fine-tuning for reinforcement learning from high-dimensional observations in the context of realistic robot tasks. Recent offline model-free approaches successfully use online…

机器学习 · 计算机科学 2024-01-09 Rafael Rafailov , Kyle Hatch , Victor Kolev , John D. Martin , Mariano Phielipp , Chelsea Finn

Recent Offline Reinforcement Learning methods have succeeded in learning high-performance policies from fixed datasets of experience. A particularly effective approach learns to first identify and then mimic optimal decision-making…

机器学习 · 计算机科学 2023-12-12 Jake Grigsby , Yanjun Qi

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…

机器人学 · 计算机科学 2021-11-02 Seunghyun Lee , Younggyo Seo , Kimin Lee , Pieter Abbeel , Jinwoo Shin

Learning agents that excel at sequential decision-making tasks must continuously resolve the problem of exploration and exploitation for optimal learning. However, such interactions with the environment online might be prohibitively…

Model-based approaches are becoming increasingly popular in the field of offline reinforcement learning, with high potential in real-world applications due to the model's capability of thoroughly utilizing the large historical datasets…

机器学习 · 计算机科学 2023-05-08 Haoyang He

Sequential decision-making agents struggle with long horizon tasks, since solving them requires multi-step reasoning. Most reinforcement learning (RL) algorithms address this challenge by improved credit assignment, introducing memory…

机器学习 · 计算机科学 2023-04-04 Bogdan Mazoure , Jake Bruce , Doina Precup , Rob Fergus , Ankit Anand

Sample efficiency and exploration remain major challenges in online reinforcement learning (RL). A powerful approach that can be applied to address these issues is the inclusion of offline data, such as prior trajectories from a human…

机器学习 · 计算机科学 2023-06-01 Philip J. Ball , Laura Smith , Ilya Kostrikov , Sergey Levine

This paper introduces the offline meta-reinforcement learning (offline meta-RL) problem setting and proposes an algorithm that performs well in this setting. Offline meta-RL is analogous to the widely successful supervised learning strategy…

机器学习 · 计算机科学 2021-07-22 Eric Mitchell , Rafael Rafailov , Xue Bin Peng , Sergey Levine , Chelsea Finn

Several approaches have been proposed to improve the sample efficiency of online reinforcement learning (RL) by leveraging demonstrations collected offline. The offline data can be used directly as transitions to optimize RL objectives, or…

机器人学 · 计算机科学 2026-03-31 Dwait Bhatt , Shih-Chieh Chou , Nikolay Atanasov

Offline reinforcement learning enables agents to leverage large pre-collected datasets of environment transitions to learn control policies, circumventing the need for potentially expensive or unsafe online data collection. Significant…

机器学习 · 计算机科学 2022-03-17 Cong Lu , Philip J. Ball , Jack Parker-Holder , Michael A. Osborne , Stephen J. Roberts

Learning efficiently from small amounts of data has long been the focus of model-based reinforcement learning, both for the online case when interacting with the environment and the offline case when learning from a fixed dataset. However,…

We empirically investigate how pre-training on data of different modalities, such as language and vision, affects fine-tuning of Transformer-based models to Mujoco offline reinforcement learning tasks. Analysis of the internal…

机器学习 · 计算机科学 2022-11-21 Shiro Takagi