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We consider offline reinforcement learning (RL) with heterogeneous agents under severe data scarcity, i.e., we only observe a single historical trajectory for every agent under an unknown, potentially sub-optimal policy. We find that the…

机器学习 · 计算机科学 2021-11-11 Anish Agarwal , Abdullah Alomar , Varkey Alumootil , Devavrat Shah , Dennis Shen , Zhi Xu , Cindy Yang

Offline reinforcement learning (RL) methods can generally be categorized into two types: RL-based and Imitation-based. RL-based methods could in principle enjoy out-of-distribution generalization but suffer from erroneous off-policy…

机器学习 · 计算机科学 2023-04-06 Haoran Xu , Li Jiang , Jianxiong Li , Xianyuan Zhan

Dynamic radio resource management (RRM) in wireless networks presents significant challenges, particularly in the context of Radio Access Network (RAN) slicing. This technology, crucial for catering to varying user requirements, often…

信息论 · 计算机科学 2023-12-19 Kun Yang , Shu-ping Yeh , Menglei Zhang , Jerry Sydir , Jing Yang , Cong Shen

Offline reinforcement learning (ORL) holds great promise for robot learning due to its ability to learn from arbitrary pre-generated experience. However, current ORL benchmarks are almost entirely in simulation and utilize contrived…

机器人学 · 计算机科学 2022-10-14 Gaoyue Zhou , Liyiming Ke , Siddhartha Srinivasa , Abhinav Gupta , Aravind Rajeswaran , Vikash Kumar

This article reviews the recent advances on the statistical foundation of reinforcement learning (RL) in the offline and low-adaptive settings. We will start by arguing why offline RL is the appropriate model for almost any real-life ML…

机器学习 · 计算机科学 2025-01-07 Ming Yin , Mengdi Wang , Yu-Xiang Wang

Offline reinforcement learning (RL) extends the paradigm of classical RL algorithms to purely learning from static datasets, without interacting with the underlying environment during the learning process. A key challenge of offline RL is…

机器学习 · 计算机科学 2022-06-16 Shentao Yang , Yihao Feng , Shujian Zhang , Mingyuan Zhou

We study the problem of offline Imitation Learning (IL) where an agent aims to learn an optimal expert behavior policy without additional online environment interactions. Instead, the agent is provided with a supplementary offline dataset…

机器学习 · 计算机科学 2022-07-21 Haoran Xu , Xianyuan Zhan , Honglei Yin , Huiling Qin

Offline Reinforcement Learning (RL) aims to learn a near-optimal policy from a fixed dataset of transitions collected by another policy. This problem has attracted a lot of attention recently, but most existing methods with strong…

机器学习 · 计算机科学 2023-05-23 Germano Gabbianelli , Gergely Neu , Nneka Okolo , Matteo Papini

Offline reinforcement learning (RL) aims to learn from historical data without requiring (costly) access to the environment. To facilitate offline RL research, we previously introduced NeoRL, which highlighted that datasets from real-world…

机器学习 · 计算机科学 2025-03-26 Songyi Gao , Zuolin Tu , Rong-Jun Qin , Yi-Hao Sun , Xiong-Hui Chen , Yang Yu

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).…

机器学习 · 计算机科学 2024-06-21 Arsh Tangri , Ondrej Biza , Dian Wang , David Klee , Owen Howell , Robert Platt

Offline reinforcement learning (RL) offers a powerful paradigm for data-driven control. Compared to model-free approaches, offline model-based RL (MBRL) explicitly learns a world model from a static dataset and uses it as a surrogate…

机器学习 · 计算机科学 2026-02-02 Jiayu Chen , Le Xu , Aravind Venugopal , Jeff Schneider

Recently, Offline Reinforcement Learning (RL) has achieved remarkable progress with the emergence of various algorithms and datasets. However, these methods usually focus on algorithmic advancements, ignoring that many low-level…

机器学习 · 计算机科学 2023-06-02 Bingyi Kang , Xiao Ma , Yirui Wang , Yang Yue , Shuicheng Yan

Offline learning is a key part of making reinforcement learning (RL) useable in real systems. Offline RL looks at scenarios where there is data from a system's operation, but no direct access to the system when learning a policy. Recent…

机器学习 · 计算机科学 2021-03-18 Arthur Argenson , Gabriel Dulac-Arnold

Reinforcement learning (RL) is central to improving reasoning in large language models (LLMs) but typically requires ground-truth rewards. Test-Time Reinforcement Learning (TTRL) removes this need by using majority-vote rewards, but relies…

机器学习 · 计算机科学 2025-10-06 Aleksei Arzhantsev , Otmane Sakhi , Flavian Vasile

Offline reinforcement learning (RL) is a variant of RL where the policy is learned from a previously collected dataset of trajectories and rewards. In our work, we propose a practical approach to offline RL with large language models…

Offline Reinforcement Learning (RL) learns optimal policies from fixed datasets, training a policy once and deploying it at inference time without further refinement. Inspired by model predictive control (MPC), we introduce an inference…

机器学习 · 计算机科学 2026-05-21 Rohan Deb , Stephen J. Wright , Arindam Banerjee

Reinforcement learning (RL) has emerged as a promising strategy for finetuning small language models (SLMs) to solve targeted tasks such as math and coding. However, RL algorithms tend to be resource-intensive, taking a significant amount…

机器学习 · 计算机科学 2025-10-07 Lianghuan Huang , Sagnik Anupam , Insup Lee , Shuo Li , Osbert Bastani

Offline reinforcement learning (RL) refers to the problem of learning policies from a static dataset of environment interactions. Offline RL enables extensive use and re-use of historical datasets, while also alleviating safety concerns…

机器学习 · 计算机科学 2020-12-22 Rafael Rafailov , Tianhe Yu , Aravind Rajeswaran , Chelsea Finn

Offline reinforcement learning seeks to utilize offline (observational) data to guide the learning of (causal) sequential decision making strategies. The hope is that offline reinforcement learning coupled with function approximation…

机器学习 · 计算机科学 2020-10-23 Ruosong Wang , Dean P. Foster , Sham M. Kakade

Offline reinforcement learning (RL) have received rising interest due to its appealing data efficiency. The present study addresses behavior estimation, a task that lays the foundation of many offline RL algorithms. Behavior estimation aims…

机器学习 · 计算机科学 2023-05-29 Guoxi Zhang , Hisashi Kashima