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Intraday surgical scheduling is a multi-objective decision problem under uncertainty-balancing elective throughput, urgent and emergency demand, delays, sequence-dependent setups, and overtime. We formulate the problem as a cooperative…

Machine Learning · Computer Science 2025-12-05 Kailiang Liu , Ying Chen , Ralf Borndörfer , Thorsten Koch

The empirical success of multi-agent reinforcement learning (MARL) has motivated the search for more efficient and scalable algorithms for large scale multi-agent systems. However, existing state-of-the-art algorithms do not fully exploit…

Multiagent Systems · Computer Science 2025-10-14 Shahbaz P Qadri Syed , He Bai

Multi-agent Reinforcement learning (MARL) studies the behaviour of multiple learning agents that coexist in a shared environment. MARL is more challenging than single-agent RL because it involves more complex learning dynamics: the…

Artificial Intelligence · Computer Science 2023-04-26 Roger Creus Castanyer

Multiagent reinforcement learning (MARL) can solve complex cooperative tasks. However, the efficiency of existing MARL methods relies heavily on well-defined reward functions. Multiagent tasks with sparse reward feedback are especially…

Artificial Intelligence · Computer Science 2022-08-08 Qingxu Fu , Tenghai Qiu , Zhiqiang Pu , Jianqiang Yi , Wanmai Yuan

Reinforcement Learning (RL) has emerged as a crucial method for training or fine-tuning large language models (LLMs), enabling adaptive, task-specific optimizations through interactive feedback. Multi-Agent Reinforcement Learning (MARL), in…

Machine Learning · Computer Science 2026-02-10 Junwei Su , Chuan Wu

Reinforcement Learning (RL) and Multi-Agent Reinforcement Learning (MARL) have emerged as promising methodologies for addressing challenges in automated cyber defence (ACD). These techniques offer adaptive decision-making capabilities in…

Multi-Agent Reinforcement Learning (MARL) has gained significant interest in recent years, enabling sequential decision-making across multiple agents in various domains. However, most existing explanation methods focus on centralized MARL,…

Artificial Intelligence · Computer Science 2025-11-14 Kayla Boggess , Sarit Kraus , Lu Feng

Cooperative MARL often assumes frequent access to global information in a data buffer, such as team rewards or other agents' actions, which is typically unrealistic in decentralized MARL systems due to high communication costs. When…

Machine Learning · Computer Science 2026-01-21 Nuoya Xiong , Aarti Singh

Data collection is crucial for learning robust world models in model-based reinforcement learning. The most prevalent strategies are to actively collect trajectories by interacting with the environment during online training or training on…

Machine Learning · Computer Science 2025-09-09 Jiaqi Chen , Ji Shi , Cansu Sancaktar , Jonas Frey , Georg Martius

The two-sided markets such as ride-sharing companies often involve a group of subjects who are making sequential decisions across time and/or location. With the rapid development of smart phones and internet of things, they have…

Machine Learning · Statistics 2023-03-28 Chengchun Shi , Runzhe Wan , Ge Song , Shikai Luo , Rui Song , Hongtu Zhu

This paper explores human behavior in virtual networked communities, specifically individuals or groups' potential and expressive capacity to respond to internal and external stimuli, with assortative matching as a typical example. A…

Multiagent Systems · Computer Science 2023-09-06 Ou Deng , Qun Jin

Real-time dynamic scheduling is a crucial but notoriously challenging task in modern manufacturing processes due to its high decision complexity. Recently, reinforcement learning (RL) has been gaining attention as an impactful technique to…

Multiagent Systems · Computer Science 2024-09-23 Jaeyeon Jang , Diego Klabjan , Han Liu , Nital S. Patel , Xiuqi Li , Balakrishnan Ananthanarayanan , Husam Dauod , Tzung-Han Juang

Multi-agent reinforcement learning (MARL) provides a promising paradigm for coordinating multi-agent systems (MAS). However, most existing methods rely on restrictive assumptions, such as a fixed number of agents and fully synchronous…

Multiagent Systems · Computer Science 2026-02-17 Yexin Li , Jinjin Guo , Haoyu Zhang , Yuhan Zhao , Yiwen Sun , Zihao Jiao

Cooperative multi-agent reinforcement learning (MARL) is typically formalised as a Decentralised Partially Observable Markov Decision Process (Dec-POMDP), where agents must reason about the environment and other agents' behaviour. In…

Machine Learning · Computer Science 2025-07-25 Kale-ab Abebe Tessera , Leonard Hinckeldey , Riccardo Zamboni , David Abel , Amos Storkey

Multiagent reinforcement learning algorithms (MARL) have been demonstrated on complex tasks that require the coordination of a team of multiple agents to complete. Existing works have focused on sharing information between agents via…

Machine Learning · Computer Science 2019-03-18 Samir Wadhwania , Dong-Ki Kim , Shayegan Omidshafiei , Jonathan P. How

Multi-agent systems require effective coordination between groups and individuals to achieve common goals. However, current multi-agent reinforcement learning (MARL) methods primarily focus on improving individual policies and do not…

Multiagent Systems · Computer Science 2023-07-31 Jingqing Ruan , Xiaotian Hao , Dong Li , Hangyu Mao

Cooperative multi-agent reinforcement learning (MARL) is widely used to address large joint observation and action spaces by decomposing a centralized control problem into multiple interacting agents. However, such decomposition often…

Machine Learning · Computer Science 2026-04-16 Zijian Zhao , Jing Gao , Sen Li

Multi-agent reinforcement learning (MARL) under partial observability has long been considered challenging, primarily due to the requirement for each agent to maintain a belief over all other agents' local histories -- a domain that…

Artificial Intelligence · Computer Science 2020-08-18 Weichao Mao , Kaiqing Zhang , Erik Miehling , Tamer Başar

Multi-agent reinforcement learning (MARL) has emerged as a powerful paradigm for solving complex problems through agents' cooperation and competition, finding widespread applications across domains. Despite its success, MARL faces a…

Machine Learning · Statistics 2025-02-21 Baraah A. M. Sidahmed , Tatjana Chavdarova

In cooperative Multi-Agent Reinforcement Learning (MARL) agents are required to learn behaviours as a team to achieve a common goal. However, while learning a task, some agents may end up learning sub-optimal policies, not contributing to…

Artificial Intelligence · Computer Science 2023-06-22 Rafael Pina , Varuna De Silva , Corentin Artaud