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Robotic manipulation tasks such as object insertion typically involve interactions between object and environment, namely extrinsic contacts. Prior work on Neural Contact Fields (NCF) use intrinsic tactile sensing between gripper and object…

机器人学 · 计算机科学 2023-09-29 Carolina Higuera , Joseph Ortiz , Haozhi Qi , Luis Pineda , Byron Boots , Mustafa Mukadam

In-context learning (ICL) has emerged as a powerful paradigm for easily adapting Large Language Models (LLMs) to various tasks. However, our understanding of how ICL works remains limited. We explore a simple model of ICL in a controlled…

机器学习 · 计算机科学 2025-09-03 Omar Naim , Guilhem Fouilhé , Nicholas Asher

Force modulation of robotic manipulators has been extensively studied for several decades. However, it is not yet commonly used in safety-critical applications due to a lack of accurate interaction contact modeling and weak performance…

机器人学 · 计算机科学 2023-06-13 Lasitha Wijayarathne , Ziyi Zhou , Ye Zhao , Frank L. Hammond

The implicit solvent approach offers a computationally efficient framework to model solvation effects in molecular simulations. However, its accuracy often falls short compared to explicit solvent models, limiting its use in precise…

In the context of developing new vehicle concepts, especially autonomous vehicles with novel seating arrangements and occupant activities, predicting occupant motion can be a tool for ensuring safety and comfort. In this study, a…

机器人学 · 计算机科学 2024-10-29 Niklas Fahse , Monika Harant , Marius Obentheuer , Joachim Linn , Jörg Fehr

In this work, we propose a training-free method to inject visual prompts into Multimodal Large Language Models (MLLMs) through test-time optimization of a learnable latent variable. We observe that attention, as the core module of MLLMs,…

计算机视觉与模式识别 · 计算机科学 2025-01-08 Mingrui Wu , Xinyue Cai , Jiayi Ji , Jiale Li , Oucheng Huang , Gen Luo , Hao Fei , Guannan Jiang , Xiaoshuai Sun , Rongrong Ji

Data-driven approaches to tactile sensing aim to overcome the complexity of accurately modeling contact with soft materials. However, their widespread adoption is impaired by concerns about data efficiency and the capability to generalize…

机器人学 · 计算机科学 2020-03-06 Carmelo Sferrazza , Thomas Bi , Raffaello D'Andrea

We address the problem of accelerating thin-shell deformable object simulations by dimension reduction. We present a new algorithm to embed a high-dimensional configuration space of deformable objects in a low-dimensional feature space,…

图形学 · 计算机科学 2020-03-02 Qingyang Tan , Zherong Pan , Lin Gao , Dinesh Manocha

Collaborative robots are expected to be able to work alongside humans and in some cases directly replace existing human workers, thus effectively responding to rapid assembly line changes. Current methods for programming contact-rich tasks,…

机器人学 · 计算机科学 2021-10-27 Yunlei Shi , Zhaopeng Chen , Yansong Wu , Dimitri Henkel , Sebastian Riedel , Hongxu Liu , Qian Feng , Jianwei Zhang

Contact-rich manipulation often requires strategic interactions with objects, such as pushing to accomplish specific tasks. We propose a novel scenario where a robot inserts a book into a crowded shelf by pushing aside neighboring books to…

机器人学 · 计算机科学 2025-04-18 Lin Yang , Sri Harsha Turlapati , Chen Lv , Domenico Campolo

In this letter, we investigate learning forward dynamics models and multi-step prediction of state variables (long-term prediction) for contact-rich manipulation. The problems are formulated in the context of model-based reinforcement…

机器人学 · 计算机科学 2020-09-29 Shahbaz Abdul Khader , Hang Yin , Pietro Falco , Danica Kragic

Contact-rich manipulation tasks often exhibit a large sim-to-real gap. For instance, industrial assembly tasks frequently involve tight insertions where the clearance is less than 0.1 mm and can even be negative when dealing with a…

机器人学 · 计算机科学 2024-03-04 Xiang Zhang , Masayoshi Tomizuka , Hui Li

We address the problem of devising the means for a robot to rapidly and safely learn insertion skills with just a few human interventions and without hand-crafted rewards or demonstrations. Our InsertionNet version 2.0 provides an improved…

机器人学 · 计算机科学 2022-03-03 Oren Spector , Vladimir Tchuiev , Dotan Di Castro

Safe and efficient autonomous driving maneuvers in an interactive and complex environment can be considerably challenging due to the unpredictable actions of other surrounding agents that may be cooperative or adversarial in their…

机器人学 · 计算机科学 2019-01-28 Pin Wang , Ching-Yao Chan , Hanhan Li

Model-based reinforcement learning is an effective approach for controlling an unknown system. It is based on a longstanding pipeline familiar to the control community in which one performs experiments on the environment to collect a…

系统与控制 · 电气工程与系统科学 2024-08-14 Bruce D. Lee , Ingvar Ziemann , George J. Pappas , Nikolai Matni

Many contact-rich tasks humans perform, such as box pickup or rolling dough, rely on force feedback for reliable execution. However, this force information, which is readily available in most robot arms, is not commonly used in…

机器人学 · 计算机科学 2025-04-28 Jason Jingzhou Liu , Yulong Li , Kenneth Shaw , Tony Tao , Ruslan Salakhutdinov , Deepak Pathak

The robotic assembly represents a group of benchmark problems for reinforcement learning and variable compliance control that features sophisticated contact manipulation. One of the key challenges in applying reinforcement learning to…

机器人学 · 计算机科学 2019-05-14 Tianyu Ren , Yunfei Dong , Dan Wu , Ken Chen

This work proposes a novel model-free Reinforcement Learning (RL) agent that is able to learn how to complete an unknown task having access to only a part of the input observation. We take inspiration from the concepts of visual attention…

机器学习 · 计算机科学 2023-01-16 Gonçalo Querido , Alberto Sardinha , Francisco S. Melo

Setting up and controlling optical systems is often a challenging and tedious task. The high number of degrees of freedom to control mirrors, lenses, or phases of light makes automatic control challenging, especially when the complexity of…

Simulating rigid collisions among arbitrary shapes is notoriously difficult due to complex geometry and the strong non-linearity of the interactions. While graph neural network (GNN)-based models are effective at learning to simulate…