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Tremendous advances have been made in multiagent reinforcement learning (MARL). MARL corresponds to the learning problem in a multiagent system in which multiple agents learn simultaneously. It is an interdisciplinary field of study with a…

Multiagent Systems · Computer Science 2025-08-14 Yaodong Yang , Chengdong Ma , Zihan Ding , Stephen McAleer , Chi Jin , Jun Wang , Tuomas Sandholm

Reward decomposition is a critical problem in centralized training with decentralized execution~(CTDE) paradigm for multi-agent reinforcement learning. To take full advantage of global information, which exploits the states from all agents…

Machine Learning · Computer Science 2021-02-26 Jianzhun Shao , Hongchang Zhang , Yuhang Jiang , Shuncheng He , Xiangyang Ji

The majority of Multi-Agent Reinforcement Learning (MARL) literature equates the cooperation of self-interested agents in mixed environments to the problem of social welfare maximization, allowing agents to arbitrarily share rewards and…

Multiagent Systems · Computer Science 2023-06-16 Dmitry Ivanov , Ilya Zisman , Kirill Chernyshev

We introduce Arena, a toolkit for multi-agent reinforcement learning (MARL) research. In MARL, it usually requires customizing observations, rewards and actions for each agent, changing cooperative-competitive agent-interaction, and playing…

Machine Learning · Computer Science 2019-07-24 Qing Wang , Jiechao Xiong , Lei Han , Meng Fang , Xinghai Sun , Zhuobin Zheng , Peng Sun , Zhengyou Zhang

Cooperative multi-agent reinforcement learning (MARL) is making rapid progress for solving tasks in a grid world and real-world scenarios, in which agents are given different attributes and goals, resulting in different behavior through the…

Multiagent Systems · Computer Science 2022-07-13 Siyi Hu , Chuanlong Xie , Xiaodan Liang , Xiaojun Chang

Multi-agent Reinforcement learning (MARL) studies the behaviour of multiple learning agents that coexist in a shared environment. MARL is more challenging than single-agent RL because it involves more complex learning dynamics: the…

Artificial Intelligence · Computer Science 2023-04-26 Roger Creus Castanyer

Cooperative multi-agent reinforcement learning (MARL) benchmarks commonly emphasize aggregate outcomes such as return, success rate, or completion time. While essential, these metrics often fail to reveal how agents coordinate, particularly…

Multiagent Systems · Computer Science 2026-05-08 Maria Ana Cardei , Matthew Landers , Afsaneh Doryab

With the development of sensing and communication technologies in networked cyber-physical systems (CPSs), multi-agent reinforcement learning (MARL)-based methodologies are integrated into the control process of physical systems and…

Computer Science and Game Theory · Computer Science 2022-06-16 Songyang Han , He Wang , Sanbao Su , Yuanyuan Shi , Fei Miao

Reinforcement learning provides effective results with agents learning from their observations, received rewards, and internal interactions between agents. This study proposes a new open-source MARL framework, called COGMENT, to efficiently…

Artificial Intelligence · Computer Science 2021-03-03 Neda Navidi , Francoi Chabo , Saga Kurandwa , Iv Lutigma , Vincent Robt , Gregry Szrftgr , Andea Schuh

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

Reinforcement learning (RL) is one of the most practical ways to learn from real-life use-cases. Motivated from the cognitive methods used by humans makes it a widely acceptable strategy in the field of artificial intelligence. Most of the…

Artificial Intelligence · Computer Science 2026-04-14 Abhishek Sawaika , Samuel Yen-Chi Chen , Udaya Parampalli , Rajkumar Buyya

We consider the problem of \emph{fully decentralized} multi-agent reinforcement learning (MARL), where the agents are located at the nodes of a time-varying communication network. Specifically, we assume that the reward functions of the…

Machine Learning · Computer Science 2018-02-28 Kaiqing Zhang , Zhuoran Yang , Han Liu , Tong Zhang , Tamer Başar

5G is regarded as a revolutionary mobile network, which is expected to satisfy a vast number of novel services, ranging from remote health care to smart cities. However, heterogeneous Quality of Service (QoS) requirements of different…

Networking and Internet Architecture · Computer Science 2021-07-05 Hao Zhou , Medhat Elsayed , Melike Erol-Kantarci

Credit assignment, the process of attributing credit or blame to individual agents for their contributions to a team's success or failure, remains a fundamental challenge in multi-agent reinforcement learning (MARL), particularly in…

Multi-agent reinforcement learning (MARL) has become a significant research topic due to its ability to facilitate learning in complex environments. In multi-agent tasks, the state-action value, commonly referred to as the Q-value, can vary…

Artificial Intelligence · Computer Science 2024-06-13 Zhenglong Luo , Zhiyong Chen , James Welsh

Learning in stochastic games is arguably the most standard and fundamental setting in multi-agent reinforcement learning (MARL). In this paper, we consider decentralized MARL in stochastic games in the non-asymptotic regime. In particular,…

Computer Science and Game Theory · Computer Science 2021-12-17 Zuguang Gao , Qianqian Ma , Tamer Başar , John R. Birge

Cooperative game is a critical research area in the multi-agent reinforcement learning (MARL). Global reward game is a subclass of cooperative games, where all agents aim to maximize the global reward. Credit assignment is an important…

Machine Learning · Computer Science 2022-10-14 Jianhong Wang , Yuan Zhang , Tae-Kyun Kim , Yunjie Gu

Most of the prior work on multi-agent reinforcement learning (MARL) achieves optimal collaboration by directly controlling the agents to maximize a common reward. In this paper, we aim to address this from a different angle. In particular,…

Artificial Intelligence · Computer Science 2019-03-08 Tianmin Shu , Yuandong Tian

Multi-agent reinforcement learning (MARL) optimizes strategic interactions in non-cooperative dynamic games, where agents have misaligned objectives. However, data-driven methods such as multi-agent policy gradients (MA-PG) often suffer…

Systems and Control · Electrical Eng. & Systems 2026-02-13 Jingqi Li , Gechen Qu , Jason J. Choi , Somayeh Sojoudi , Claire Tomlin

Multi-agent Reinforcement Learning (MARL) has gained wide attention in recent years and has made progress in various fields. Specifically, cooperative MARL focuses on training a team of agents to cooperatively achieve tasks that are…

Multiagent Systems · Computer Science 2023-12-05 Lei Yuan , Ziqian Zhang , Lihe Li , Cong Guan , Yang Yu