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Online reinforcement learning (RL) methods are often data-inefficient or unreliable, making them difficult to train on real robotic hardware, especially quadruped robots. Learning robotic tasks from pre-collected data is a promising…

Robotics · Computer Science 2024-10-28 Hongyin Zhang , Shuyu Yang , Donglin Wang

In recent years, model-based reinforcement learning (MBRL) has emerged as a solution to address sample complexity in multi-agent reinforcement learning (MARL) by modeling agent-environment dynamics to improve sample efficiency. However,…

Multiagent Systems · Computer Science 2025-01-20 Zifeng Shi , Meiqin Liu , Senlin Zhang , Ronghao Zheng , Shanling Dong

This paper presents a novel approach to Multi-Agent Reinforcement Learning (MARL) that combines cooperative task decomposition with the learning of reward machines (RMs) encoding the structure of the sub-tasks. The proposed method helps…

Artificial Intelligence · Computer Science 2025-02-17 Leo Ardon , Daniel Furelos-Blanco , Alessandra Russo

Many recent successful off-policy multi-agent reinforcement learning (MARL) algorithms for cooperative partially observable environments focus on finding factorized value functions, leading to convoluted network structures. Building on the…

Machine Learning · Computer Science 2023-10-27 Raphaël Avalos , Mathieu Reymond , Ann Nowé , Diederik M. Roijers

We propose a novel model-based offline Reinforcement Learning (RL) framework, called Adversarial Model for Offline Reinforcement Learning (ARMOR), which can robustly learn policies to improve upon an arbitrary reference policy regardless of…

Machine Learning · Computer Science 2023-12-29 Mohak Bhardwaj , Tengyang Xie , Byron Boots , Nan Jiang , Ching-An Cheng

This paper presents a multi-agent reinforcement learning (MARL) approach for controlling adjustable metallic reflector arrays to enhance wireless signal reception in non-line-of-sight (NLOS) scenarios. Unlike conventional reconfigurable…

Signal Processing · Electrical Eng. & Systems 2025-12-30 Hieu Le , Oguz Bedir , Mostafa Ibrahim , Jian Tao , Sabit Ekin

The exponential growth of Low Earth Orbit (LEO) satellites has revolutionised Earth Observation (EO) missions, addressing challenges in climate monitoring, disaster management, and more. However, autonomous coordination in multi-satellite…

Artificial Intelligence · Computer Science 2025-11-06 Mohamad A. Hady , Siyi Hu , Mahardhika Pratama , Jimmy Cao , Ryszard Kowalczyk

Multi-agent formation as well as obstacle avoidance is one of the most actively studied topics in the field of multi-agent systems. Although some classic controllers like model predictive control (MPC) and fuzzy control achieve a certain…

Systems and Control · Electrical Eng. & Systems 2021-11-16 Yuzi Yan , Xiaoxiang Li , Xinyou Qiu , Jiantao Qiu , Jian Wang , Yu Wang , Yuan Shen

This paper proposes a multi-agent reinforcement learning (MARL) approach to learn dynamic dispatching strategies, which is crucial for optimizing throughput in material handling systems across diverse industries. To benchmark our method, we…

Machine Learning · Computer Science 2024-09-30 Xian Yeow Lee , Haiyan Wang , Daisuke Katsumata , Takaharu Matsui , Chetan Gupta

Multi-agent reinforcement learning for incomplete information environments has attracted extensive attention from researchers. However, due to the slow sample collection and poor sample exploration, there are still some problems in…

Artificial Intelligence · Computer Science 2022-05-12 Shuhan Qi , Shuhao Zhang , Xiaohan Hou , Jiajia Zhang , Xuan Wang , Jing Xiao

Multi-agent reinforcement learning (MARL) algorithms have accomplished remarkable breakthroughs in solving large-scale decision-making tasks. Nonetheless, most existing MARL algorithms are model-free, limiting sample efficiency and…

Machine Learning · Computer Science 2024-05-21 Qihan Liu , Jianing Ye , Xiaoteng Ma , Jun Yang , Bin Liang , Chongjie Zhang

Judicious resource allocation can effectively enhance federated learning (FL) training performance in wireless networks by addressing both system and statistical heterogeneity. However, existing strategies typically rely on block fading…

Machine Learning · Computer Science 2025-05-07 Jiacheng Wang , Le Liang , Hao Ye , Chongtao Guo , Shi Jin

Offline reinforcement learning (RL) faces a significant challenge of distribution shift. Model-free offline RL penalizes the Q value for out-of-distribution (OOD) data or constrains the policy closed to the behavior policy to tackle this…

Machine Learning · Computer Science 2024-04-18 Xiao-Yin Liu , Xiao-Hu Zhou , Guotao Li , Hao Li , Mei-Jiang Gui , Tian-Yu Xiang , De-Xing Huang , Zeng-Guang Hou

In multi-agent reinforcement learning (MARL), the Centralized Training with Decentralized Execution (CTDE) framework is pivotal but struggles due to a gap: global state guidance in training versus reliance on local observations in…

Artificial Intelligence · Computer Science 2024-08-26 Pu Feng , Junkang Liang , Size Wang , Xin Yu , Xin Ji , Yiting Chen , Kui Zhang , Rongye Shi , Wenjun Wu

Offline reinforcement learning (RL) aims to find optimal policies in dynamic environments in order to maximize the expected total rewards by leveraging pre-collected data. Learning from heterogeneous data is one of the fundamental…

Machine Learning · Statistics 2026-03-10 Rui Miao , Babak Shahbaba , Annie Qu

Recent advances in large language models (LLMs) have sparked growing interest in building generalist agents that can learn through online interactions. However, applying reinforcement learning (RL) to train LLM agents in multi-turn,…

Artificial Intelligence · Computer Science 2025-10-07 Hanchen Zhang , Xiao Liu , Bowen Lv , Xueqiao Sun , Bohao Jing , Iat Long Iong , Zhenyu Hou , Zehan Qi , Hanyu Lai , Yifan Xu , Rui Lu , Hongning Wang , Jie Tang , Yuxiao Dong

Significant advances have recently been achieved in Multi-Agent Reinforcement Learning (MARL) which tackles sequential decision-making problems involving multiple participants. However, MARL requires a tremendous number of samples for…

Multiagent Systems · Computer Science 2024-12-30 Xihuai Wang , Zhicheng Zhang , Weinan Zhang

In offline multi-agent reinforcement learning (MARL), agents estimate policies from a given dataset. We study reward-poisoning attacks in this setting where an exogenous attacker modifies the rewards in the dataset before the agents see the…

Machine Learning · Computer Science 2023-03-09 Young Wu , Jeremy McMahan , Xiaojin Zhu , Qiaomin Xie

We develop a Multi-Agent Reinforcement Learning (MARL) method to learn scalable control policies for target tracking. Our method can handle an arbitrary number of pursuers and targets; we show results for tasks consisting up to 1000…

Multiagent Systems · Computer Science 2021-11-11 Christopher D. Hsu , Heejin Jeong , George J. Pappas , Pratik Chaudhari

Despite remarkable achievements in single-agent offline reinforcement learning (RL), multi-agent RL (MARL) has struggled to adopt this paradigm, largely persisting with on-policy training and self-play from scratch. One reason for this gap…

Machine Learning · Computer Science 2026-03-10 Dongsu Lee , Daehee Lee , Amy Zhang