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Emergent communication offers insight into how agents develop shared structured representations, yet most research assumes homogeneous modalities or aligned representational spaces, overlooking the perceptual heterogeneity of real-world…

Multiagent Systems · Computer Science 2026-01-30 Naomi Pitzer , Daniela Mihai

Here we consider the communications tactics appropriate for a group of agents that need to "swarm" together in a highly adversarial environment. Specfically, whilst they need to cooperate by exchanging information with each other about…

Multiagent Systems · Computer Science 2023-04-07 Paul Kinsler , Sean Holman , Andrew Elliott , Cathryn N. Mitchell , R. Eddie Wilson

This paper deals with distributed policy optimization in reinforcement learning, which involves a central controller and a group of learners. In particular, two typical settings encountered in several applications are considered:…

Machine Learning · Computer Science 2021-04-21 Tianyi Chen , Kaiqing Zhang , Georgios B. Giannakis , Tamer Başar

There is growing interest in studying the languages that emerge when neural agents are jointly trained to solve tasks requiring communication through a discrete channel. We investigate here the information-theoretic complexity of such…

Computation and Language · Computer Science 2020-06-29 Eugene Kharitonov , Rahma Chaabouni , Diane Bouchacourt , Marco Baroni

Multi-agent reinforcement learning offers a way to study how communication could emerge in communities of agents needing to solve specific problems. In this paper, we study the emergence of communication in the negotiation environment, a…

Artificial Intelligence · Computer Science 2018-04-12 Kris Cao , Angeliki Lazaridou , Marc Lanctot , Joel Z Leibo , Karl Tuyls , Stephen Clark

By enabling agents to communicate, recent cooperative multi-agent reinforcement learning (MARL) methods have demonstrated better task performance and more coordinated behavior. Most existing approaches facilitate inter-agent communication…

Artificial Intelligence · Computer Science 2023-03-21 Yat Long Lo , Christian Schroeder de Witt , Samuel Sokota , Jakob Nicolaus Foerster , Shimon Whiteson

In decentralized multi-agent deep reinforcement learning (MADRL), communication can help agents to gain a better understanding of the environment to better coordinate their behaviors. Nevertheless, communication may involve uncertainty,…

Machine Learning · Computer Science 2025-02-11 Changxi Zhu , Mehdi Dastani , Shihan Wang

Emergent communication has made strides towards learning communication from scratch, but has focused primarily on protocols that resemble human language. In nature, multi-agent cooperation gives rise to a wide range of communication that…

Multiagent Systems · Computer Science 2022-02-08 Niko A. Grupen , Daniel D. Lee , Bart Selman

Multi-agent settings remain a fundamental challenge in the reinforcement learning (RL) domain due to the partial observability and the lack of accurate real-time interactions across agents. In this paper, we propose a new method based on…

Machine Learning · Computer Science 2023-01-03 Donghan Xie , Zhi Wang , Chunlin Chen , Daoyi Dong

Despite the transmission efficiency gains of semantic communication (SemCom) over traditional methods, most existing SemCom schemes still operate at a fixed transmission rate regardless of channel conditions and transmitted content,…

Image and Video Processing · Electrical Eng. & Systems 2026-03-11 Weixuan Chen , Qianqian Yang , Yuhao Chen , Chongwen Huang , Qian Wang , Zehui Xiong , Zhaoyang Zhang

Communication is an effective mechanism for coordinating the behaviors of multiple agents, broadening their views of the environment, and to support their collaborations. In the field of multi-agent deep reinforcement learning (MADRL),…

Multiagent Systems · Computer Science 2024-10-21 Changxi Zhu , Mehdi Dastani , Shihan Wang

In multi-agent deep reinforcement learning (MADRL), agents can communicate with one another to perform a task in a coordinated manner. When multiple tasks are involved, agents can also leverage knowledge from one task to improve learning in…

Multiagent Systems · Computer Science 2025-11-07 Changxi Zhu , Mehdi Dastani , Shihan Wang

Communicating with each other in a distributed manner and behaving as a group are essential in multi-agent reinforcement learning. However, real-world multi-agent systems suffer from restrictions on limited-bandwidth communication. If the…

Multiagent Systems · Computer Science 2020-10-13 Guangzheng Hu , Yuanheng Zhu , Dongbin Zhao , Mengchen Zhao , Jianye Hao

In this paper, we study the problem of reinforcement learning in multi-agent systems where communication among agents is limited. We develop a decentralized actor-critic learning framework in which each agent performs several local updates…

Machine Learning · Computer Science 2025-10-23 Xiaoxing Ren , Nicola Bastianello , Thomas Parisini , Andreas A. Malikopoulos

The paper considers independent reinforcement learning (IRL) for multi-agent collaborative decision-making in the paradigm of federated learning (FL). However, FL generates excessive communication overheads between agents and a remote…

Machine Learning · Computer Science 2023-05-30 Xing Xu , Rongpeng Li , Zhifeng Zhao , Honggang Zhang

Tool-using agents based on Large Language Models (LLMs) excel in tasks such as mathematical reasoning and multi-hop question answering. However, in long trajectories, agents often trigger excessive and low-quality tool calls, increasing…

Artificial Intelligence · Computer Science 2026-03-25 Zeping Li , Hongru Wang , Yiwen Zhao , Guanhua Chen , Yixia Li , Keyang Chen , Yixin Cao , Guangnan Ye , Hongfeng Chai , Zhenfei Yin

Applying multi-agent reinforcement learning methods to realistic settings is challenging as it may require the agents to quickly adapt to unexpected situations that are rarely or never encountered in training. Recent methods for…

Multiagent Systems · Computer Science 2025-01-03 Min Whoo Lee , Kibeom Kim , Soo Wung Shin , Minsu Lee , Byoung-Tak Zhang

Multi-agent debate has proven effective in improving large language models quality for reasoning and factuality tasks. While various role-playing strategies in multi-agent debates have been explored, in terms of the communication among…

Computation and Language · Computer Science 2024-06-18 Yunxuan Li , Yibing Du , Jiageng Zhang , Le Hou , Peter Grabowski , Yeqing Li , Eugene Ie

Many real-world reinforcement learning tasks require multiple agents to make sequential decisions under the agents' interaction, where well-coordinated actions among the agents are crucial to achieve the target goal better at these tasks.…

Artificial Intelligence · Computer Science 2019-02-06 Daewoo Kim , Sangwoo Moon , David Hostallero , Wan Ju Kang , Taeyoung Lee , Kyunghwan Son , Yung Yi

Multi-agent neural implicit mapping allows robots to collaboratively capture and reconstruct complex environments with high fidelity. However, existing approaches often rely on synchronous communication, which is impractical in real-world…

Robotics · Computer Science 2025-04-29 Hongrui Zhao , Boris Ivanovic , Negar Mehr