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Nonprehensile manipulation, such as pushing objects across cluttered environments, presents a challenging control problem due to complex contact dynamics and long-horizon planning requirements. In this work, we propose HeRD, a hierarchical…

Robotics · Computer Science 2025-12-12 Steven Caro , Stephen L. Smith

Modeling multimodal human behavior has been a key barrier to increasing the level of interaction between human and robot, particularly for collaborative tasks. Our key insight is that an effective, learned robot policy used for human-robot…

Robotics · Computer Science 2023-11-14 Eley Ng , Ziang Liu , Monroe Kennedy

Learning robust visuomotor policies that generalize across diverse objects and interaction dynamics remains a central challenge in robotic manipulation. Most existing approaches rely on direct observation-to-action mappings or compress…

Robotics · Computer Science 2025-09-24 Sangjun Noh , Dongwoo Nam , Kangmin Kim , Geonhyup Lee , Yeonguk Yu , Raeyoung Kang , Kyoobin Lee

Diffusion models, praised for their success in generative tasks, are increasingly being applied to robotics, demonstrating exceptional performance in behavior cloning. However, their slow generation process stemming from iterative denoising…

We propose MADP, a novel diffusion-model-based approach for collaboration in decentralized robot swarms. MADP leverages diffusion models to generate samples from complex and high-dimensional action distributions that capture the…

Robotics · Computer Science 2026-05-07 Frederic Vatnsdal , Romina Garcia Camargo , Saurav Agarwal , Alejandro Ribeiro

Diffusion Policy is a powerful technique tool for learning end-to-end visuomotor robot control. It is expected that Diffusion Policy possesses scalability, a key attribute for deep neural networks, typically suggesting that increasing model…

Intelligent surgical robots have the potential to revolutionize clinical practice by enabling more precise and automated surgical procedures. However, the automation of such robot for surgical tasks remains under-explored compared to recent…

Robotics · Computer Science 2026-03-10 Chonlam Ho , Jianshu Hu , Lei Song , Hesheng Wang , Qi Dou , Yutong Ban

Diffusion-based policies have achieved remarkable results in robotic manipulation but often struggle to adapt rapidly in dynamic scenarios, leading to delayed responses or task failures. We present DCDP, a Dynamic Closed-Loop Diffusion…

Robotics · Computer Science 2026-03-18 Pengyuan Wu , Pingrui Zhang , Zhigang Wang , Dong Wang , Bin Zhao , Xuelong Li

One of the key challenges that Reinforcement Learning (RL) faces is its limited capability to adapt to a change of data distribution caused by uncertainties. This challenge arises especially in RL systems using deep neural networks as…

Machine Learning · Computer Science 2025-06-17 Amornyos Horprasert , Esa Apriaskar , Xingyu Liu , Lanlan Su , Lyudmila S. Mihaylova

Explainable robots require not only successful task execution but also the ability to expose internal decision-making process in a user-friendly manner. However, most imitation learning methods are trained solely on task-level…

Robotics · Computer Science 2026-05-19 Site Hu , Takato Horii

Imitation learning, particularly Diffusion Policies based methods, has recently gained significant traction in embodied AI as a powerful approach to action policy generation. These models efficiently generate action policies by learning to…

Robotics · Computer Science 2025-04-15 Haiyong Yu , Yanqiong Jin , Yonghao He , Wei Sui

This paper introduces the QMDP-net, a neural network architecture for planning under partial observability. The QMDP-net combines the strengths of model-free learning and model-based planning. It is a recurrent policy network, but it…

Artificial Intelligence · Computer Science 2017-11-06 Peter Karkus , David Hsu , Wee Sun Lee

Learning-based 3D Scanning plays a crucial role in enabling efficient and accurate scanning of target objects. However, recent reinforcement learning-based methods often require large-scale training data and still struggle to generalize to…

Robotics · Computer Science 2026-03-12 Itsuki Hirako , Ryo Hakoda , Yubin Liu , Matthew Hwang , Yoshihiro Sato , Takeshi Oishi

As a robot senses and selects actions, the world keeps changing. This inference delay creates a gap of tens to hundreds of milliseconds between the observed state and the state at execution. In this work, we take the natural generalization…

Robotics · Computer Science 2026-03-25 Aileen Liao , Dong-Ki Kim , Max Olan Smith , Ali-akbar Agha-mohammadi , Shayegan Omidshafiei

Humanoid loco-manipulation requires coordinated high-level motion plans with stable, low-level whole-body execution under complex robot-environment dynamics and long-horizon tasks. While diffusion policies (DPs) show promise for learning…

Recently, diffusion policy has shown impressive results in handling multi-modal tasks in robotic manipulation. However, it has fundamental limitations in out-of-distribution failures that persist due to compounding errors and its limited…

Robotics · Computer Science 2025-03-25 Sung-Wook Lee , Xuhui Kang , Yen-Ling Kuo

In recent years roboticists have achieved remarkable progress in solving increasingly general tasks on dexterous robotic hardware by leveraging high capacity Transformer network architectures and generative diffusion models. Unfortunately,…

Robotics · Computer Science 2024-10-15 Sudeep Dasari , Oier Mees , Sebastian Zhao , Mohan Kumar Srirama , Sergey Levine

Diffusion Policies have significantly advanced robotic manipulation tasks via imitation learning, but their application on resource-constrained mobile platforms remains challenging due to computational inefficiency and extensive memory…

Robotics · Computer Science 2025-08-04 Yiming Wu , Huan Wang , Zhenghao Chen , Jianxin Pang , Dong Xu

Multi-robot cooperative transport is crucial in logistics, housekeeping, and disaster response. However, it poses significant challenges in environments where objects of various weights are mixed and the number of robots and objects varies.…

Robotics · Computer Science 2024-04-04 Yusei Naito , Tomohiko Jimbo , Tadashi Odashima , Takamitsu Matsubara

The paper considers a class of multi-agent Markov decision processes (MDPs), in which the network agents respond differently (as manifested by the instantaneous one-stage random costs) to a global controlled state and the control actions of…

Machine Learning · Statistics 2015-06-04 Soummya Kar , Jose' M. F. Moura , H. Vincent Poor