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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

There is a growing interest in Multi-Agent Reinforcement Learning (MARL) as the first steps towards building general intelligent agents that learn to make low and high-level decisions in non-stationary complex environments in the presence…

Artificial Intelligence · Computer Science 2020-01-01 Marco Jerome Gasparrini , Ricard Solé , Martí Sánchez-Fibla

This paper proposes an exploration technique for multi-agent reinforcement learning (MARL) with graph-based communication among agents. We assume the individual rewards received by the agents are independent of the actions by the other…

Machine Learning · Computer Science 2025-08-11 Ainur Zhaikhan , Ali H. Sayed

Multi-Agent Reinforcement Learning (MARL) comprises a broad area of research within the field of multi-agent systems. Several recent works have focused specifically on the study of communication approaches in MARL. While multiple…

Machine Learning · Computer Science 2024-03-27 Rafael Pina , Varuna De Silva , Corentin Artaud , Xiaolan Liu

Multiagent Reinforcement Learning (MARL) poses significant challenges due to the exponential growth of state and action spaces and the non-stationary nature of multiagent environments. This results in notable sample inefficiency and hinders…

Multiagent Systems · Computer Science 2025-02-27 Nikhilesh Prabhakar , Ranveer Singh , Harsha Kokel , Sriraam Natarajan , Prasad Tadepalli

In the last decade, there have been significant advances in multi-agent reinforcement learning (MARL) but there are still numerous challenges, such as high sample complexity and slow convergence to stable policies, that need to be overcome…

Artificial Intelligence · Computer Science 2023-03-02 Sriram Ganapathi Subramanian , Matthew E. Taylor , Kate Larson , Mark Crowley

We consider the problem of robust multi-agent reinforcement learning (MARL) for cooperative communication and coordination tasks. MARL agents, mainly those trained in a centralized way, can be brittle because they can adopt policies that…

Multiagent Systems · Computer Science 2020-12-16 T. van der Heiden , C. Salge , E. Gavves , H. van Hoof

While decentralized training is attractive in multi-agent reinforcement learning (MARL) for its excellent scalability and robustness, its inherent coordination challenges in collaborative tasks result in numerous interactions for agents to…

Multiagent Systems · Computer Science 2023-12-20 Yanwen Ba , Xuan Liu , Xinning Chen , Hao Wang , Yang Xu , Kenli Li , Shigeng Zhang

We consider multi-agent reinforcement learning (MARL) for cooperative communication and coordination tasks. MARL agents can be brittle because they can overfit their training partners' policies. This overfitting can produce agents that…

Artificial Intelligence · Computer Science 2022-03-08 Tessa van der Heiden , Herke van Hoof , Efstratios Gavves , Christoph Salge

Multi-Agent Reinforcement Learning (MARL) approaches have emerged as popular solutions to address the general challenges of cooperation in multi-agent environments, where the success of achieving shared or individual goals critically…

Multiagent Systems · Computer Science 2024-12-31 Reza Azadeh

Multiagent reinforcement learning (MARL) has attracted considerable attention due to its potential in addressing complex cooperative tasks. However, existing MARL approaches often rely on frequent exchanges of action or state information…

Machine Learning · Computer Science 2026-01-14 Zhenglong Luo , Zhiyong Chen , Aoxiang Liu , Ke Pan

In this paper, we consider the problem of multi-agent navigation in partially observable grid environments. This problem is challenging for centralized planning approaches as they, typically, rely on the full knowledge of the environment.…

Machine Learning · Computer Science 2021-08-16 Vasilii Davydov , Alexey Skrynnik , Konstantin Yakovlev , Aleksandr I. Panov

Communication technologies enable coordination among connected and autonomous vehicles (CAVs). However, it remains unclear how to utilize shared information to improve the safety and efficiency of the CAV system in dynamic and complicated…

Robotics · Computer Science 2023-03-15 Zhili Zhang , Songyang Han , Jiangwei Wang , Fei Miao

Exploration efficiency is a challenging problem in multi-agent reinforcement learning (MARL), as the policy learned by confederate MARL depends on the collaborative approach among multiple agents. Another important problem is the less…

Machine Learning · Computer Science 2019-12-30 Qisheng Wang , Qichao Wang

Multi-agent reinforcement learning in dynamic social dilemmas commonly relies on parameter sharing to enable scalability. We show that in shared-policy Deep Q-Network learning, standard exploration can induce a robust and systematic…

Multiagent Systems · Computer Science 2026-01-12 Yi-Ning Weng , Hsuan-Wei Lee

Transfer learning is an important new subfield of multiagent reinforcement learning that aims to help an agent learn about a problem by using knowledge that it has gained solving another problem, or by using knowledge that is communicated…

Artificial Intelligence · Computer Science 2020-02-10 Cameron Reid

We study multi-agent reinforcement learning (MARL) in a stochastic network of agents. The objective is to find localized policies that maximize the (discounted) global reward. In general, scalability is a challenge in this setting because…

Machine Learning · Computer Science 2021-11-03 Yiheng Lin , Guannan Qu , Longbo Huang , Adam Wierman

Multi-agent reinforcement learning (MARL) has witnessed a remarkable surge in interest, fueled by the empirical success achieved in applications of single-agent reinforcement learning (RL). In this study, we consider a distributed…

Artificial Intelligence · Computer Science 2025-07-30 Han-Dong Lim , Donghwan Lee

This paper considers the multi-agent reinforcement learning (MARL) problem for a networked (peer-to-peer) system in the presence of Byzantine agents. We build on an existing distributed $Q$-learning algorithm, and allow certain agents in…

Systems and Control · Electrical Eng. & Systems 2021-04-08 Yijing Xie , Shaoshuai Mou , Shreyas Sundaram

Collaboration is a key challenge in distributed multi-agent reinforcement learning (MARL) environments. Learning frameworks for these decentralized systems must weigh the benefits of explicit player coordination against the communication…

Quantum Physics · Physics 2025-02-21 Alexander DeRieux , Walid Saad