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Multi-agent exploration of a bounded 3D environment with unknown initial positions of agents is a challenging problem. It requires quickly exploring the environments as well as robustly merging the sub-maps built by the agents. We take the…

In cooperative multi-agent reinforcement learning (MARL), where agents only have access to partial observations, efficiently leveraging local information is critical. During long-time observations, agents can build \textit{awareness} for…

Machine Learning · Computer Science 2022-06-22 Jiahan Cao , Lei Yuan , Jianhao Wang , Shaowei Zhang , Chongjie Zhang , Yang Yu , De-Chuan Zhan

A wide range of reinforcement learning (RL) problems - including robustness, transfer learning, unsupervised RL, and emergent complexity - require specifying a distribution of tasks or environments in which a policy will be trained.…

Machine Learning · Computer Science 2021-02-05 Michael Dennis , Natasha Jaques , Eugene Vinitsky , Alexandre Bayen , Stuart Russell , Andrew Critch , Sergey Levine

Multi-agent reinforcement learning (MARL) algorithms have accomplished remarkable breakthroughs in solving large-scale decision-making tasks. Nonetheless, most existing MARL algorithms are model-free, limiting sample efficiency and…

Machine Learning · Computer Science 2024-05-21 Qihan Liu , Jianing Ye , Xiaoteng Ma , Jun Yang , Bin Liang , Chongjie Zhang

Multi-Agent Reinforcement Learning (MARL) has gained significant traction for solving complex real-world tasks, but the inherent stochasticity and uncertainty in these environments pose substantial challenges to efficient and robust policy…

Machine Learning · Computer Science 2025-01-22 Somnath Hazra , Pallab Dasgupta , Soumyajit Dey

Deep neural networks are vulnerable to adversarial examples. Adversarial training (AT) is an effective defense against adversarial examples. However, AT is prone to overfitting which degrades robustness substantially. Recently, data…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Lin Li , Jianing Qiu , Michael Spratling

Large Language Model (LLM) agent systems have advanced rapidly, driven by their strong generalization in zero-shot settings. To further enhance reasoning and accuracy on complex tasks, Multi-Agent Debate (MAD) has emerged as a promising…

Computation and Language · Computer Science 2025-12-03 Wei Fan , JinYi Yoon , Bo Ji

Collaborative multi-agent exploration of unknown environments is crucial for search and rescue operations. Effective real-world deployment must address challenges such as limited inter-agent communication and static and dynamic obstacles.…

Robotics · Computer Science 2024-12-31 Gabriele Calzolari , Vidya Sumathy , Christoforos Kanellakis , George Nikolakopoulos

Multi-agent debate (MAD) is widely used to improve large language model (LLM) performance through test-time scaling, yet recent work shows that vanilla MAD often underperforms simple majority vote despite higher computational cost. Studies…

Computation and Language · Computer Science 2026-01-29 Xiaochen Zhu , Caiqi Zhang , Yizhou Chi , Tom Stafford , Nigel Collier , Andreas Vlachos

Team competition in multi-agent Markov games is an increasingly important setting for multi-agent reinforcement learning, due to its general applicability in modeling many real-life situations. Multi-agent actor-critic methods are the most…

Multiagent Systems · Computer Science 2023-01-18 Paramita Koley , Aurghya Maiti , Niloy Ganguly , Sourangshu Bhattacharya

A multi-agent deep reinforcement learning (MADRL) is a promising approach to challenging problems in wireless environments involving multiple decision-makers (or actors) with high-dimensional continuous action space. In this paper, we…

Information Theory · Computer Science 2021-09-13 Heunchul Lee , Jaeseong Jeong

Reinforcement learning in heterogeneous multi-agent scenarios is important for real-world applications but presents challenges beyond those seen in homogeneous settings and simple benchmarks. In this work, we present an actor-critic…

Multiagent Systems · Computer Science 2020-10-07 Ceyer Wakilpoor , Patrick J. Martin , Carrie Rebhuhn , Amanda Vu

Moving target defense (MTD) is a proactive defense approach that aims to thwart attacks by continuously changing the attack surface of a system (e.g., changing host or network configurations), thereby increasing the adversary's uncertainty…

Cryptography and Security · Computer Science 2020-08-21 Taha Eghtesad , Yevgeniy Vorobeychik , Aron Laszka

Autonomous vehicles are suited for continuous area patrolling problems. However, finding an optimal patrolling strategy can be challenging for many reasons. Firstly, patrolling environments are often complex and can include unknown…

Artificial Intelligence · Computer Science 2023-06-12 Chenhao Tong , Aaron Harwood , Maria A. Rodriguez , Richard O. Sinnott

Ensuring the safety of embodied AI agents during task planning is critical for real-world deployment, especially in household environments where dangerous instructions pose significant risks. Existing methods often suffer from either high…

Artificial Intelligence · Computer Science 2025-11-27 Junjian Wang , Lidan Zhao , Xi Sheryl Zhang

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

The key challenge in multiagent learning is learning a best response to the behaviour of other agents, which may be non-stationary: if the other agents adapt their strategy as well, the learning target moves. Disparate streams of research…

Multiagent Systems · Computer Science 2019-03-13 Pablo Hernandez-Leal , Michael Kaisers , Tim Baarslag , Enrique Munoz de Cote

Advancements in reinforcement learning (RL) have been remarkable in recent years. However, the limitations of traditional training methods have become increasingly evident, particularly in meta-RL settings where agents face new, unseen…

Machine Learning · Computer Science 2023-02-07 Ramnath Kumar , Tristan Deleu , Yoshua Bengio

Modeling multi-agent systems requires understanding how agents interact. Such systems are often difficult to model because they can involve a variety of types of interactions that layer together to drive rich social behavioral dynamics.…

Machine Learning · Computer Science 2023-01-26 Fan-Yun Sun , Isaac Kauvar , Ruohan Zhang , Jiachen Li , Mykel Kochenderfer , Jiajun Wu , Nick Haber

Machine learning is rapidly being used in database research to improve the effectiveness of numerous tasks included but not limited to query optimization, workload scheduling, physical design, etc. Currently, the research focus has been on…

Databases · Computer Science 2022-08-08 Chi Zhang , Olga Papaemmanouil , Josiah P. Hanna , Aditya Akella