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Value decomposition (VD) has become one of the most prominent solutions in cooperative multi-agent reinforcement learning. Most existing methods generally explore how to factorize the joint value and minimize the discrepancies between agent…

Multiagent Systems · Computer Science 2025-02-06 Siying Wang , Yang Zhou , Zhitong Zhao , Ruoning Zhang , Jinliang Shao , Wenyu Chen , Yuhua Cheng

Long-context video modeling is critical for multimodal large language models (MLLMs), enabling them to process movies, online video streams, and so on. Despite its advances, handling long videos remains challenging due to the difficulty in…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Xinhao Li , Yi Wang , Jiashuo Yu , Xiangyu Zeng , Yuhan Zhu , Haian Huang , Jianfei Gao , Kunchang Li , Yinan He , Chenting Wang , Yu Qiao , Yali Wang , Limin Wang

Humanoid robots, capable of assuming human roles in various workplaces, have become essential to embodied intelligence. However, as robots with complex physical structures, learning a control model that can operate robustly across diverse…

Robotics · Computer Science 2025-05-20 Sixu Lin , Guanren Qiao , Yunxin Tai , Ang Li , Kui Jia , Guiliang Liu

The control of nonlinear dynamical systems remains a major challenge for autonomous agents. Current trends in reinforcement learning (RL) focus on complex representations of dynamics and policies, which have yielded impressive results in…

Machine Learning · Computer Science 2020-05-13 Hany Abdulsamad , Jan Peters

Meta-Reinforcement Learning (Meta-RL) enables fast adaptation to new testing tasks. Despite recent advancements, it is still challenging to learn performant policies across multiple complex and high-dimensional tasks. To address this, we…

Machine Learning · Computer Science 2024-12-17 Minjae Cho , Chuangchuang Sun

Distributed model predictive control (DMPC) is promising in achieving optimal cooperative control in multirobot systems (MRS). However, real-time DMPC implementation relies on numerical optimization tools to periodically calculate local…

Robotics · Computer Science 2024-12-30 Xinglong Zhang , Wei Pan , Cong Li , Xin Xu , Xiangke Wang , Ronghua Zhang , Dewen Hu

A key challenge in manipulation is learning a policy that can robustly generalize to diverse visual environments. A promising mechanism for learning robust policies is to leverage video generative models, which are pretrained on large-scale…

We introduce a HD DCC-HEAVY class of hierarchical-type factor models for high-dimensional covariance matrices, employing the realized measures built from higher-frequency data. The modelling approach features straightforward estimation and…

Econometrics · Economics 2024-07-17 Emilija Dzuverovic , Matteo Barigozzi

Hierarchical forecasting is a key problem in many practical multivariate forecasting applications - the goal is to simultaneously predict a large number of correlated time series that are arranged in a pre-specified aggregation hierarchy.…

Machine Learning · Computer Science 2021-10-13 Biswajit Paria , Rajat Sen , Amr Ahmed , Abhimanyu Das

The ability to plan with temporal abstractions is central to intelligent decision-making. Rather than reasoning over primitive actions, we study agents that compose pre-trained policies as temporally extended actions, enabling solutions to…

Machine Learning · Computer Science 2026-02-24 Jesse Farebrother , Matteo Pirotta , Andrea Tirinzoni , Marc G. Bellemare , Alessandro Lazaric , Ahmed Touati

The choice of the control frequency of a system has a relevant impact on the ability of reinforcement learning algorithms to learn a highly performing policy. In this paper, we introduce the notion of action persistence that consists in the…

Machine Learning · Computer Science 2020-07-14 Alberto Maria Metelli , Flavio Mazzolini , Lorenzo Bisi , Luca Sabbioni , Marcello Restelli

Imitation learning is a control design paradigm that seeks to learn a control policy reproducing demonstrations from expert agents. By substituting expert demonstrations for optimal behaviours, the same paradigm leads to the design of…

Machine Learning · Computer Science 2024-12-20 Dharmesh Tailor , Dario Izzo

For robots operating in the real world, it is desirable to learn reusable behaviours that can effectively be transferred and adapted to numerous tasks and scenarios. We propose an approach to learn abstract motor skills from data using a…

Learning control policies for multi-robot systems (MRS) remains a major challenge due to long-term coordination and the difficulty of obtaining realistic training data. In this work, we address both limitations within an imitation learning…

Robotics · Computer Science 2025-10-03 Jesús Roche , Eduardo Sebastián , Eduardo Montijano

Diffusion-based visuomotor policies perform well in robotic manipulation, yet current methods still inherit image-generation-style decoders and multi-step sampling. We revisit this design from a frequency-domain perspective. Robot action…

Robotics · Computer Science 2026-05-12 Jinhao Zhang , Zhexuan Zhou , Huizhe Li , Yichen Lai , Wenlong Xia , Haoming Song , Youmin Gong , Jie Mei

Industrial large-scale recommendation models (LRMs) face the challenge of jointly modeling long-range user behavior sequences and heterogeneous non-sequential features under strict efficiency constraints. However, most existing…

Information Retrieval · Computer Science 2026-01-26 Yunwen Huang , Shiyong Hong , Xijun Xiao , Jinqiu Jin , Xuanyuan Luo , Zhe Wang , Zheng Chai , Shikang Wu , Yuchao Zheng , Jingjian Lin

While solving complex manipulation tasks, manipulation policies often need to learn a set of diverse skills to accomplish these tasks. The set of skills is often quite multimodal - each one may have a quite distinct distribution of actions…

Robotics · Computer Science 2024-01-05 M. Nomaan Qureshi , Ben Eisner , David Held

Models with fewer parameters are necessary for the neural control of memory-limited, performant robots. Finding these smaller neural network architectures can be time-consuming. We propose HyperPPO, an on-policy reinforcement learning…

Robotics · Computer Science 2023-09-29 Shashank Hegde , Zhehui Huang , Gaurav S. Sukhatme

In cooperative Multi-Agent Reinforcement Learning (MARL), efficient exploration is crucial for optimizing the performance of joint policy. However, existing methods often update joint policies via independent agent exploration, without…

Machine Learning · Computer Science 2025-11-18 Zejiao Liu , Junqi Tu , Yitian Hong , Luolin Xiong , Yaochu Jin , Yang Tang , Fangfei Li

Imitation learning (IL) consists of a set of tools that leverage expert demonstrations to quickly learn policies. However, if the expert is suboptimal, IL can yield policies with inferior performance compared to reinforcement learning (RL).…

Machine Learning · Computer Science 2018-05-29 Ching-An Cheng , Xinyan Yan , Nolan Wagener , Byron Boots
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