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Multi-task multi-agent reinforcement learning (MT-MARL) has recently gained attention for its potential to enhance MARL's adaptability across multiple tasks. However, it is challenging for existing multi-task learning methods to handle…

Robotics · Computer Science 2025-07-10 Guobin Zhu , Rui Zhou , Wenkang Ji , Hongyin Zhang , Donglin Wang , Shiyu Zhao

Multi-agent reinforcement learning (MARL) requires coordination to efficiently solve certain tasks. Fully centralized control is often infeasible in such domains due to the size of joint action spaces. Coordination graph based formalization…

Machine Learning · Computer Science 2021-02-05 Sheng Li , Jayesh K. Gupta , Peter Morales , Ross Allen , Mykel J. Kochenderfer

Traditional multi-agent reinforcement learning (MARL) algorithms, such as independent Q-learning, struggle when presented with partially observable scenarios, and where agents are required to develop delicate action sequences. This is often…

Machine Learning · Computer Science 2022-11-21 F. Bredell , H. A. Engelbrecht , J. C. Schoeman

Multi-agent reinforcement learning (MARL) has achieved great progress in cooperative tasks in recent years. However, in the local reward scheme, where only local rewards for each agent are given without global rewards shared by all the…

Machine Learning · Computer Science 2023-02-21 Yunbo Qiu , Yue Jin , Lebin Yu , Jian Wang , Xudong Zhang

Many advances in cooperative multi-agent reinforcement learning (MARL) are based on two common design principles: value decomposition and parameter sharing. A typical MARL algorithm of this fashion decomposes a centralized Q-function into…

Artificial Intelligence · Computer Science 2022-08-09 Wei Fu , Chao Yu , Zelai Xu , Jiaqi Yang , Yi Wu

Multiagent reinforcement learning (MARL) is commonly considered to suffer from non-stationary environments and exponentially increasing policy space. It would be even more challenging when rewards are sparse and delayed over long…

Most real-world domains can be formulated as multi-agent (MA) systems. Intentionality sharing agents can solve more complex tasks by collaborating, possibly in less time. True cooperative actions are beneficial for egoistic and collective…

Artificial Intelligence · Computer Science 2022-04-26 Philipp Dominic Siedler

Multi-agent Reinforcement Learning (MARL) is emerging as a key framework for various sequential decision-making and control tasks. Unlike their single-agent counterparts, multi-agent systems necessitate successful cooperation among the…

Multiagent Systems · Computer Science 2026-03-13 Jahir Sadik Monon , Deeparghya Dutta Barua , Md. Mosaddek Khan

Existing distributed cooperative multi-agent reinforcement learning (MARL) frameworks usually assume undirected coordination graphs and communication graphs while estimating a global reward via consensus algorithms for policy evaluation.…

Multiagent Systems · Computer Science 2022-01-14 Gangshan Jing , He Bai , Jemin George , Aranya Chakrabortty , Piyush. K. Sharma

In human society, the conflict between self-interest and collective well-being often obstructs efforts to achieve shared welfare. Related concepts like the Tragedy of the Commons and Social Dilemmas frequently manifest in our daily lives.…

Multiagent Systems · Computer Science 2025-06-17 Yue Jin , Shuangqing Wei , Giovanni Montana

This paper introduces the deep coordination graph (DCG) for collaborative multi-agent reinforcement learning. DCG strikes a flexible trade-off between representational capacity and generalization by factoring the joint value function of all…

Machine Learning · Computer Science 2020-06-24 Wendelin Böhmer , Vitaly Kurin , Shimon Whiteson

Deep Reinforcement Learning has made significant progress in multi-agent systems in recent years. In this review article, we have focused on presenting recent approaches on Multi-Agent Reinforcement Learning (MARL) algorithms. In…

Machine Learning · Computer Science 2021-05-03 Afshin OroojlooyJadid , Davood Hajinezhad

Cooperative Multi-agent Reinforcement Learning (MARL) is crucial for cooperative decentralized decision learning in many domains such as search and rescue, drone surveillance, package delivery and fire fighting problems. In these domains, a…

Machine Learning · Computer Science 2020-01-23 Rajiv Ranjan Kumar , Pradeep Varakantham

Discovering successful coordinated behaviors is a central challenge in Multi-Agent Reinforcement Learning (MARL) since it requires exploring a joint action space that grows exponentially with the number of agents. In this paper, we propose…

Machine Learning · Computer Science 2021-10-14 Ammar Fayad , Majd Ibrahim

Cooperative multi-agent reinforcement learning (MARL) has made prominent progress in recent years. For training efficiency and scalability, most of the MARL algorithms make all agents share the same policy or value network. However, in many…

Machine Learning · Computer Science 2022-11-07 Mingyu Yang , Jian Zhao , Xunhan Hu , Wengang Zhou , Jiangcheng Zhu , Houqiang Li

Applying machine learning techniques to graph drawing has become an emergent area of research in visualization. In this paper, we interpret graph drawing as a multi-agent reinforcement learning (MARL) problem. We first demonstrate that a…

Machine Learning · Computer Science 2020-11-03 Ilkin Safarli , Youjia Zhou , Bei Wang

The application of deep reinforcement learning in multi-agent systems introduces extra challenges. In a scenario with numerous agents, one of the most important concerns currently being addressed is how to develop sufficient collaboration…

Artificial Intelligence · Computer Science 2022-10-12 Bin Zhang , Yunpeng Bai , Zhiwei Xu , Dapeng Li , Guoliang Fan

We study the problem of online multi-agent reinforcement learning (MARL) in environments with sparse rewards, where reward feedback is not provided at each interaction but only revealed at the end of a trajectory. This setting, though…

Machine Learning · Computer Science 2025-09-29 The Viet Bui , Tien Mai , Hong Thanh Nguyen

This paper proposes a novel multi-agent reinforcement learning (MARL) method to learn multiple coordinated agents under directed acyclic graph (DAG) constraints. Unlike existing MARL approaches, our method explicitly exploits the DAG…

Value-based methods of multi-agent reinforcement learning (MARL), especially the value decomposition methods, have been demonstrated on a range of challenging cooperative tasks. However, current methods pay little attention to the…

Machine Learning · Computer Science 2021-02-12 Xiaoteng Ma , Yiqin Yang , Chenghao Li , Yiwen Lu , Qianchuan Zhao , Yang Jun