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Hierarchical reinforcement learning (HRL) is a promising approach to extend traditional reinforcement learning (RL) methods to solve more complex tasks. Yet, the majority of current HRL methods require careful task-specific design and…

Machine Learning · Computer Science 2018-10-08 Ofir Nachum , Shixiang Gu , Honglak Lee , Sergey Levine

Offline reinforcement learning (RL) methods aim to learn optimal policies with access only to trajectories in a fixed dataset. Policy constraint methods formulate policy learning as an optimization problem that balances maximizing reward…

Machine Learning · Computer Science 2025-03-04 Padmanaba Srinivasan , William Knottenbelt

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…

We consider the problem of learning useful robotic skills from previously collected offline data without access to manually specified rewards or additional online exploration, a setting that is becoming increasingly important for scaling…

Reinforcement learning (RL) in the real world necessitates the development of procedures that enable agents to explore without causing harm to themselves or others. The most successful solutions to the problem of safe RL leverage offline…

Machine Learning · Computer Science 2025-01-09 Alexander Quessy , Thomas Richardson , Sebastian East

This paper addresses the challenge of occluded robot grasping, i.e. grasping in situations where the desired grasp poses are kinematically infeasible due to environmental constraints such as surface collisions. Traditional robot…

Robotics · Computer Science 2025-02-17 Jun Yamada , Alexander L. Mitchell , Jack Collins , Ingmar Posner

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

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

Deep reinforcement learning (DRL) has been proven to be a powerful paradigm for learning complex control policy autonomously. Numerous recent applications of DRL in robotic grasping have successfully trained DRL robotic agents end-to-end,…

Robotics · Computer Science 2020-07-03 Zhixin Chen , Mengxiang Lin , Zhixin Jia , Shibo Jian

Reinforcement learning (RL) has the potential to transform real-world decision-making systems by enabling autonomous agents to learn from experience. Deploying RL in real-world settings, especially in the context of human-robot interaction,…

Machine Learning · Computer Science 2026-02-04 Saurav Singh , Rodney Sanchez , Alexander Ororbia , Jamison Heard

Offline goal-conditioned reinforcement learning (GCRL) is a major problem in reinforcement learning (RL) because it provides a simple, unsupervised, and domain-agnostic way to acquire diverse behaviors and representations from unlabeled…

Machine Learning · Computer Science 2025-02-14 Seohong Park , Kevin Frans , Benjamin Eysenbach , Sergey Levine

Offline Meta Reinforcement Learning (OMRL) aims to learn transferable knowledge from offline datasets to enhance the learning process for new target tasks. Context-based Reinforcement Learning (RL) adopts a context encoder to expediently…

Machine Learning · Computer Science 2023-05-24 Chenyang Zhao , Zihao Zhou , Bin Liu

This paper introduces two simple techniques to improve off-policy Reinforcement Learning (RL) algorithms. First, we formulate off-policy RL as a stochastic proximal point iteration. The target network plays the role of the variable of…

Machine Learning · Computer Science 2020-08-04 Marco Maggipinto , Gian Antonio Susto , Pratik Chaudhari

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 reinforcement learning (RL) has attracted much attention due to its ability in learning from static offline datasets and eliminating the need of interacting with the environment. Nevertheless, the success of offline RL relies…

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

Modern decision-making systems, from robots to web recommendation engines, are expected to adapt: to user preferences, changing circumstances or even new tasks. Yet, it is still uncommon to deploy a dynamically learning agent (rather than a…

Machine Learning · Computer Science 2022-11-15 Shengpu Tang , Felipe Vieira Frujeri , Dipendra Misra , Alex Lamb , John Langford , Paul Mineiro , Sebastian Kochman

Link adaptation (LA) is an essential function in modern wireless communication systems that dynamically adjusts the transmission rate of a communication link to match time- and frequency-varying radio link conditions. However, factors such…

Machine Learning · Computer Science 2024-12-02 Samuele Peri , Alessio Russo , Gabor Fodor , Pablo Soldati

Offline reinforcement learning (RL) has emerged as a promising framework for addressing robot social navigation challenges. However, inherent uncertainties in pedestrian behavior and limited environmental interaction during training often…

Robotics · Computer Science 2025-10-02 Run Su , Hao Fu , Shuai Zhou , Yingao Fu

Off-dynamics Reinforcement Learning (ODRL) seeks to transfer a policy from a source environment to a target environment characterized by distinct yet similar dynamics. In this context, traditional RL agents depend excessively on the…

Machine Learning · Computer Science 2024-07-16 Paul Daoudi , Christophe Prieur , Bogdan Robu , Merwan Barlier , Ludovic Dos Santos

We consider off-dynamics reinforcement learning (RL) where one needs to transfer policies across different domains with dynamics mismatch. Despite the focus on developing dynamics-aware algorithms, this field is hindered due to the lack of…

Machine Learning · Computer Science 2024-10-29 Jiafei Lyu , Kang Xu , Jiacheng Xu , Mengbei Yan , Jingwen Yang , Zongzhang Zhang , Chenjia Bai , Zongqing Lu , Xiu Li