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In cooperative multi-agent reinforcement learning (MARL), the permutation problem where the state space grows exponentially with the number of agents reduces sample efficiency. Additionally, many existing architectures struggle with…

Machine Learning · Computer Science 2025-03-18 Hyunwoo Park , Baekryun Seong , Sang-Ki Ko

Zero-shot coordination problem in multi-agent reinforcement learning (MARL), which requires agents to adapt to unseen agents, has attracted increasing attention. Traditional approaches often rely on the Self-Play (SP) framework to generate…

Multiagent Systems · Computer Science 2024-11-05 Weifan Long , Wen Wen , Peng Zhai , Lihua Zhang

While many robotic tasks can be addressed using either centralized single-agent control with full state observation or decentralized multi-agent control, clear criteria for choosing between these approaches remain underexplored. This paper…

Many potential applications of reinforcement learning in the real world involve interacting with other agents whose numbers vary over time. We propose new neural policy architectures for these multi-agent problems. In contrast to other…

Machine Learning · Computer Science 2019-06-03 Matthew A. Wright , Roberto Horowitz

Multi-Agent Reinforcement Learning (MARL) has recently emerged as a significant area of research. However, MARL evaluation often lacks systematic diversity, hindering a comprehensive understanding of algorithms' capabilities. In particular,…

Learning in multi-agent scenarios is a fruitful research direction, but current approaches still show scalability problems in multiple games with general reward settings and different opponent types. The Multi-Agent Reinforcement Learning…

Artificial Intelligence · Computer Science 2025-04-14 Diego Perez-Liebana , Katja Hofmann , Sharada Prasanna Mohanty , Noboru Kuno , Andre Kramer , Sam Devlin , Raluca D. Gaina , Daniel Ionita

We present a reinforcement learning strategy for use in multi-agent foraging systems in which the learning is centralised to a single agent and its model is periodically disseminated among the population of non-learning agents. In a domain…

Multiagent Systems · Computer Science 2026-01-21 Ian O'Flynn , Harun Šiljak

Training a multi-agent reinforcement learning (MARL) algorithm is more challenging than training a single-agent reinforcement learning algorithm, because the result of a multi-agent task strongly depends on the complex interactions among…

Machine Learning · Computer Science 2021-01-19 Heechang Ryu , Hayong Shin , Jinkyoo Park

Scalability is the key roadstone towards the application of cooperative intelligent algorithms in large-scale networks. Reinforcement learning (RL) is known as model-free and high efficient intelligent algorithm for communication problems…

Signal Processing · Electrical Eng. & Systems 2021-11-08 Fenghe Hu , Yansha Deng , A. Hamid Aghvami

The necessity for cooperation among intelligent machines has popularised cooperative multi-agent reinforcement learning (MARL) in AI research. However, many research endeavours heavily rely on parameter sharing among agents, which confines…

Machine Learning · Computer Science 2023-12-29 Yifan Zhong , Jakub Grudzien Kuba , Xidong Feng , Siyi Hu , Jiaming Ji , Yaodong Yang

We study a search and tracking (S&T) problem where a team of dynamic search agents must collaborate to track an adversarial, evasive agent. The heterogeneous search team may only have access to a limited number of past adversary…

Machine Learning · Computer Science 2023-10-24 Zixuan Wu , Sean Ye , Manisha Natarajan , Letian Chen , Rohan Paleja , Matthew C. Gombolay

Adaptivity, both of the individual agents and of the interaction structure among the agents, seems indispensable for scaling up multi-agent systems (MAS's) in noisy environments. One important consideration in designing adaptive agents is…

Multiagent Systems · Computer Science 2007-05-23 David H. Wolpert , Sergey Kirshner , Chris J. Merz , Kagan Tumer

Conventional optimization-based metering depends on strict adherence to precomputed schedules, which limits the flexibility required for the stochastic operations of Advanced Air Mobility (AAM). In contrast, multi-agent reinforcement…

Robotics · Computer Science 2026-01-09 Arsyi Aziz , Peng Wei

Multi-Agent Reinforcement Learning (MARL) comprises an area of growing interest in the field of machine learning. Despite notable advances, there are still problems that require investigation. The lazy agent pathology is a famous problem in…

Machine Learning · Computer Science 2023-11-07 Rafael Pina , Varuna De Silva , Corentin Artaud

In cooperative multi-agent reinforcement learning (c-MARL), agents learn to cooperatively take actions as a team to maximize a total team reward. We analyze the robustness of c-MARL to adversaries capable of attacking one of the agents on a…

Machine Learning · Computer Science 2020-03-10 Jieyu Lin , Kristina Dzeparoska , Sai Qian Zhang , Alberto Leon-Garcia , Nicolas Papernot

The emergence of multi-agent reinforcement learning (MARL) is significantly transforming various fields like autonomous vehicle networks. However, real-world multi-agent systems typically contain multiple roles, and the scale of these…

Machine Learning · Computer Science 2024-10-03 Xudong Guo , Daming Shi , Junjie Yu , Wenhui Fan

Letting robots emulate human behavior has always posed a challenge, particularly in scenarios involving multiple robots. In this paper, we presented a framework aimed at achieving multi-agent reinforcement learning for robot control in…

Robotics · Computer Science 2023-05-25 Kangkang Duan , Christine Wun Ki Suen , Zhengbo Zou

Cooperative multi-agent reinforcement learning (MARL) aims to coordinate multiple agents to achieve a common goal. A key challenge in MARL is credit assignment, which involves assessing each agent's contribution to the shared reward. Given…

Artificial Intelligence · Computer Science 2025-08-12 Xutong Zhao , Yaqi Xie

Robotics can help address the growing worker shortage challenge of the manufacturing industry. As such, machine tending is a task collaborative robots can tackle that can also highly boost productivity. Nevertheless, existing robotics…

Robotics · Computer Science 2025-03-03 Abdalwhab Abdalwhab , Giovanni Beltrame , Samira Ebrahimi Kahou , David St-Onge

Reinforcement Learning (RL) in Traffic Signal Control (TSC) faces significant hurdles in real-world deployment due to limited generalization to dynamic traffic flow variations. Existing approaches often overfit static patterns and use…

Artificial Intelligence · Computer Science 2026-03-13 Sheng-You Huang , Hsiao-Chuan Chang , Yen-Chi Chen , Ting-Han Wei , I-Hau Yeh , Sheng-Yao Kuan , Chien-Yao Wang , Hsuan-Han Lee , I-Chen Wu