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The behavioral dynamics of multi-agent systems have a rich and orderly structure, which can be leveraged to understand these systems, and to improve how artificial agents learn to operate in them. Here we introduce Relational Forward Models…

In this paper we take the first steps in studying a new approach to synthesis of efficient communication schemes in multi-agent systems, trained via reinforcement learning. We combine symbolic methods with machine learning, in what is…

Artificial Intelligence · Computer Science 2022-12-29 Erik Jergéus , Leo Karlsson Oinonen , Emil Carlsson , Moa Johansson

This paper considers predicting future statuses of multiple agents in an online fashion by exploiting dynamic interactions in the system. We propose a novel collaborative prediction unit (CoPU), which aggregates the predictions from…

Artificial Intelligence · Computer Science 2021-07-05 Maosen Li , Siheng Chen , Yanning Shen , Genjia Liu , Ivor W. Tsang , Ya Zhang

In this paper we study the problem of social learning under multiple true hypotheses and self-interested agents which exchange information over a graph. In this setup, each agent receives data that might be generated from a different…

Multiagent Systems · Computer Science 2021-10-27 Konstantinos Ntemos , Virginia Bordignon , Stefan Vlaski , Ali H. Sayed

Inter-agent communication can significantly increase performance in multi-agent tasks that require co-ordination to achieve a shared goal. Prior work has shown that it is possible to learn inter-agent communication protocols using…

Artificial Intelligence · Computer Science 2021-12-09 Varun Kumar Vijay , Hassam Sheikh , Somdeb Majumdar , Mariano Phielipp

We introduce a multi-agent meta-modeling game to generate data, knowledge, and models that make predictions on constitutive responses of elasto-plastic materials. We introduce a new concept from graph theory where a modeler agent is tasked…

Machine Learning · Computer Science 2020-04-15 Kun Wang , WaiChing Sun , Qiang Du

We apply diffusion strategies to develop a fully-distributed cooperative reinforcement learning algorithm in which agents in a network communicate only with their immediate neighbors to improve predictions about their environment. The…

Multiagent Systems · Computer Science 2014-11-06 Sergio Valcarcel Macua , Jianshu Chen , Santiago Zazo , Ali H. Sayed

In Multi-Agent Reinforcement Learning (MARL), specialized channels are often introduced that allow agents to communicate directly with one another. In this paper, we propose an alternative approach whereby agents communicate through an…

Artificial Intelligence · Computer Science 2022-05-26 Dianbo Liu , Vedant Shah , Oussama Boussif , Cristian Meo , Anirudh Goyal , Tianmin Shu , Michael Mozer , Nicolas Heess , Yoshua Bengio

Communication is a key component in multi-agent reinforcement learning (MARL) for mitigating partial observability, yet prior approaches often rely on inefficient information exchange or fail to transmit sufficient state information. To…

Artificial Intelligence · Computer Science 2026-05-19 Sangjun Bae , Yisak Park , Sanghyeon Lee , Seungyul Han

We propose a multi-agent distributed reinforcement learning algorithm that balances between potentially conflicting short-term reward and sparse, delayed long-term reward, and learns with partial information in a dynamic environment. We…

Machine Learning · Computer Science 2022-04-06 Jing Tan , Ramin Khalili , Holger Karl

This paper presents deep meta coordination graphs (DMCG) for learning cooperative policies in multi-agent reinforcement learning (MARL). Coordination graph formulations encode local interactions and accordingly factorize the joint value…

Machine Learning · Computer Science 2026-02-11 Nikunj Gupta , James Zachary Hare , Jesse Milzman , Rajgopal Kannan , Viktor Prasanna

We explore deep reinforcement learning methods for multi-agent domains. We begin by analyzing the difficulty of traditional algorithms in the multi-agent case: Q-learning is challenged by an inherent non-stationarity of the environment,…

Machine Learning · Computer Science 2020-03-17 Ryan Lowe , Yi Wu , Aviv Tamar , Jean Harb , Pieter Abbeel , Igor Mordatch

Multi-agent systems (MAS) have shown great potential in executing complex tasks, but coordination and safety remain significant challenges. Multi-Agent Reinforcement Learning (MARL) offers a promising framework for agent collaboration, but…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Ziqi Jia , Junjie Li , Xiaoyang Qu , Jianzong Wang

Value Decomposition (VD) aims to deduce the contributions of agents for decentralized policies in the presence of only global rewards, and has recently emerged as a powerful credit assignment paradigm for tackling cooperative Multi-Agent…

Machine Learning · Computer Science 2023-03-15 Shunyu Liu , Yihe Zhou , Jie Song , Tongya Zheng , Kaixuan Chen , Tongtian Zhu , Zunlei Feng , Mingli Song

Optimizing communication topology is fundamental to the efficiency and effectiveness of Large Language Model (LLM)-based Multi-Agent Systems (MAS). While recent approaches utilize reinforcement learning to dynamically construct…

Computation and Language · Computer Science 2026-03-04 Yueyang Cang , Xiaoteng Zhang , Erlu Zhao , Zehua Ji , Yuhang Liu , Yuchen He , Zhiyuan Ning , Chen Yijun , Wenge Que , Li Shi

Multi-agent reinforcement learning shines as the pinnacle of multi-agent systems, conquering intricate real-world challenges, fostering collaboration and coordination among agents, and unleashing the potential for intelligent…

Multiagent Systems · Computer Science 2023-12-27 Jiawei Wang , Jian Zhao , Zhengtao Cao , Ruili Feng , Rongjun Qin , Yang Yu

Adversarial attacks during training can strongly influence the performance of multi-agent reinforcement learning algorithms. It is, thus, highly desirable to augment existing algorithms such that the impact of adversarial attacks on…

Machine Learning · Computer Science 2021-11-19 Martin Figura , Yixuan Lin , Ji Liu , Vijay Gupta

Multi-agent systems must learn to communicate and understand interactions between agents to achieve cooperative goals in partially observed tasks. However, existing approaches lack a dynamic directed communication mechanism and rely on…

Multiagent Systems · Computer Science 2025-02-27 Zhuohui Zhang , Bin He , Bin Cheng , Gang Li

Large language model (LLM) deployments increasingly rely on multi-agent architectures in which multiple models either compete through routing mechanisms or collaborate to produce a final answer. In both settings, the learning signal…

Machine Learning · Computer Science 2026-04-28 Stela Tong , Elai Ben-Gal

Cooperation is fundamental in Multi-Agent Systems (MAS) and Multi-Agent Reinforcement Learning (MARL), often requiring agents to balance individual gains with collective rewards. In this regard, this paper aims to investigate strategies to…

Computer Science and Game Theory · Computer Science 2024-05-06 Vaigarai Sathi , Sabahat Shaik , Jaswanth Nidamanuri