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Offline multi-agent reinforcement learning (MARL) is an exciting direction of research that uses static datasets to find optimal control policies for multi-agent systems. Though the field is by definition data-driven, efforts have thus far…

Machine Learning · Computer Science 2024-09-19 Claude Formanek , Louise Beyers , Callum Rhys Tilbury , Jonathan P. Shock , Arnu Pretorius

Out-of-distribution (OOD) detection remains a critical challenge in open-world learning, where models must adapt to evolving data distributions. While recent vision-language models (VLMS) like CLIP enable multimodal OOD detection through…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Aditi Naiknaware , Salimeh Sekeh

In this paper, we study cooperative multi-agent reinforcement learning (MARL) where the joint reward exhibits submodularity, which is a natural property capturing diminishing marginal returns when adding agents to a team. Unlike standard…

Machine Learning · Computer Science 2026-03-10 Wenjing Chen , Chengyuan Qian , Shuo Xing , Yi Zhou , Victoria Crawford

Multi-UAV pursuit-evasion, where pursuers aim to capture evaders, poses a key challenge for UAV swarm intelligence. Multi-agent reinforcement learning (MARL) has demonstrated potential in modeling cooperative behaviors, but most RL-based…

Robotics · Computer Science 2025-07-09 Jiayu Chen , Chao Yu , Guosheng Li , Wenhao Tang , Shilong Ji , Xinyi Yang , Botian Xu , Huazhong Yang , Yu Wang

Instead of making behavioral decisions directly from the exponentially expanding joint observational-action space, subtask-based multi-agent reinforcement learning (MARL) methods enable agents to learn how to tackle different subtasks. Most…

Artificial Intelligence · Computer Science 2024-03-05 Wenjing Zhang , Wei Zhang

Offline multi-agent reinforcement learning (MARL) is severely hampered by the challenge of evaluating out-of-distribution (OOD) joint actions. Our core finding is that when the behavior policy is factorized - a common scenario where agents…

Machine Learning · Computer Science 2025-11-12 Yue Jin , Giovanni Montana

The evolution of previous Click-Through Rate (CTR) models has mainly been driven by proposing complex components, whether shallow or deep, that are adept at modeling feature interactions. However, there has been less focus on improving…

Information Retrieval · Computer Science 2024-11-26 Kexin Zhang , Fuyuan Lyu , Xing Tang , Dugang Liu , Chen Ma , Kaize Ding , Xiuqiang He , Xue Liu

Motion estimation is one of the core challenges in computer vision. With traditional dual-frame approaches, occlusions and out-of-view motions are a limiting factor, especially in the context of environmental perception for vehicles due to…

Computer Vision and Pattern Recognition · Computer Science 2020-11-05 René Schuster , Christian Unger , Didier Stricker

Multi-agent reinforcement learning (MARL) is a widely used Artificial Intelligence (AI) technique. However, current studies and applications need to address its scalability, non-stationarity, and trustworthiness. This paper aims to review…

Artificial Intelligence · Computer Science 2024-06-07 Ziyuan Zhou , Guanjun Liu , Ying Tang

One-shot federated learning (OSFL) reduces the communication cost and privacy risks of iterative federated learning by constructing a global model with a single round of communication. However, most existing methods struggle to achieve…

Machine Learning · Computer Science 2026-01-08 Shudong Liu , Hanwen Zhang , Xiuling Wang , Yuesheng Zhu , Guibo Luo

Recently, out-of-distribution (OOD) generalization has attracted attention to the robustness and generalization ability of deep learning based models, and accordingly, many strategies have been made to address different aspects related to…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Zining Chen , Weiqiu Wang , Zhicheng Zhao , Aidong Men , Hong Chen

In many learning systems, such as activity recognition systems, as new data collection methods continue to emerge in various dynamic environmental applications, the attributes of instances accumulate incrementally, with data being stored in…

Statistics Theory · Mathematics 2026-03-24 Jing Zhang , Chenping Hou

Traditional machine learning paradigms are based on the assumption that both training and test data follow the same statistical pattern, which is mathematically referred to as Independent and Identically Distributed ($i.i.d.$). However, in…

Machine Learning · Computer Science 2023-07-28 Jiashuo Liu , Zheyan Shen , Yue He , Xingxuan Zhang , Renzhe Xu , Han Yu , Peng Cui

Multi-Agent Reinforcement Learning (MARL) algorithms are widely adopted in tackling complex tasks that require collaboration and competition among agents in dynamic Multi-Agent Systems (MAS). However, learning such tasks from scratch is…

Artificial Intelligence · Computer Science 2024-02-14 Ayesha Siddika Nipu , Siming Liu , Anthony Harris

Visual SLAM is particularly challenging in environments affected by noise, varying lighting conditions, and darkness. Learning-based optical flow algorithms can leverage multiple modalities to address these challenges, but traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Youjie Zhou , Guofeng Mei , Yiming Wang , Yi Wan , Fabio Poiesi

End-to-end visuomotor policies trained using behavior cloning have shown a remarkable ability to generate complex, multi-modal low-level robot behaviors. However, at deployment time, these policies still struggle to act reliably when faced…

Robotics · Computer Science 2025-06-17 Pranay Gupta , Henny Admoni , Andrea Bajcsy

Unsupervised out-of-distribution (OOD) detection aims to identify out-of-domain data by learning only from unlabeled In-Distribution (ID) training samples, which is crucial for developing a safe real-world machine learning system. Current…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Ying Yang , De Cheng , Chaowei Fang , Yubiao Wang , Changzhe Jiao , Lechao Cheng , Nannan Wang

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

The primary focus of multi-agent reinforcement learning (MARL) has been to study interactions among a fixed number of agents embedded in an environment. However, in the real world, the number of agents is neither fixed nor known a priori.…

Machine Learning · Computer Science 2026-02-17 Shishir Sharma , Doina Precup , Theodore J. Perkins

Covering skill (a.k.a., option) discovery has been developed to improve the exploration of RL in single-agent scenarios with sparse reward signals, through connecting the most distant states in the embedding space provided by the Fiedler…

Machine Learning · Computer Science 2023-08-22 Jiayu Chen , Jingdi Chen , Tian Lan , Vaneet Aggarwal