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Dexterous grasping aims to produce diverse grasping postures with a high grasping success rate. Regression-based methods that directly predict grasping parameters given the object may achieve a high success rate but often lack diversity.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Jiaxin Lu , Hao Kang , Haoxiang Li , Bo Liu , Yiding Yang , Qixing Huang , Gang Hua

Digital twin worlds with realistic interactive dynamics presents a new opportunity to develop generalist embodied agents in scannable environments with complex physical behaviors. To this end, we present GDGen (Generalized Representation…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Yichen Li , Zhiyi Li , Brandon Feng , Dinghuai Zhang , Antonio Torralba

Direct policy gradient methods for reinforcement learning are a successful approach for a variety of reasons: they are model free, they directly optimize the performance metric of interest, and they allow for richly parameterized policies.…

Machine Learning · Computer Science 2020-08-14 Alekh Agarwal , Mikael Henaff , Sham Kakade , Wen Sun

Imitation learning is a promising paradigm for training robot control policies, but these policies can suffer from distribution shift, where the conditions at evaluation time differ from those in the training data. A popular approach for…

Robotics · Computer Science 2024-05-03 Ryan Hoque , Ajay Mandlekar , Caelan Garrett , Ken Goldberg , Dieter Fox

Given (small amounts of) time-series' data from a high-dimensional, fine-grained, multiscale dynamical system, we propose a generative framework for learning an effective, lower-dimensional, coarse-grained dynamical model that is predictive…

Machine Learning · Statistics 2021-01-18 Sebastian Kaltenbach , Phaedon-Stelios Koutsourelakis

Manipulation policies deployed in uncontrolled real-world scenarios are faced with great in-category geometric diversity of everyday objects. In order to function robustly under such variations, policies need to work in a category-level…

Robotics · Computer Science 2026-04-20 Yirui Wang , Xiuwei Xu , Angyuan Ma , Bingyao Yu , Jie Zhou , Jiwen Lu

Visuomotor policies have shown great promise in robotic manipulation but often require substantial amounts of human-collected data for effective performance. A key reason underlying the data demands is their limited spatial generalization…

Robotics · Computer Science 2025-02-25 Zhengrong Xue , Shuying Deng , Zhenyang Chen , Yixuan Wang , Zhecheng Yuan , Huazhe Xu

In this work, we study the problem of data retrieval for few-shot imitation learning: selecting data from a large dataset to train a performant policy for a specific task, given only a few target demonstrations. Prior methods retrieve data…

Robotics · Computer Science 2025-09-09 Sateesh Kumar , Shivin Dass , Georgios Pavlakos , Roberto Martín-Martín

Learning diverse dexterous manipulation behaviors with assorted objects remains an open grand challenge. While policy learning methods offer a powerful avenue to attack this problem, they require extensive per-task engineering and…

Robotics · Computer Science 2023-02-14 Sudeep Dasari , Abhinav Gupta , Vikash Kumar

Synthesizing complex whole-body manipulation behaviors has fundamental challenges due to the rapidly growing combinatorics inherent to contact interaction planning. While model-based methods have shown promising results in solving…

Robotics · Computer Science 2023-10-20 Mengchao Zhang , Jose Barreiros , Aykut Ozgun Onol

Large-scale and diverse datasets are vital for training robust robotic manipulation policies, yet existing data collection methods struggle to balance scale, diversity, and quality. Simulation offers scalability but suffers from sim-to-real…

Data augmentation is a crucial technique in deep learning, particularly for tasks with limited dataset diversity, such as skeleton-based datasets. This paper proposes a comprehensive data augmentation framework that integrates geometric…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Nada Aboudeshish , Dmitry Ignatov , Radu Timofte

Even when aggregate accuracy is high, state-of-the-art NLP models often fail systematically on specific subgroups of data, resulting in unfair outcomes and eroding user trust. Additional data collection may not help in addressing these…

Computation and Language · Computer Science 2023-05-30 Zexue He , Marco Tulio Ribeiro , Fereshte Khani

Learning from demonstration allows robots to acquire complex skills from human demonstrations, but conventional approaches often require large datasets and fail to generalize across coordinate transformations. In this paper, we propose…

Robotics · Computer Science 2025-09-18 Zewen Yang , Xiaobing Dai , Dongfa Zhang , Yu Li , Ziyang Meng , Bingkun Huang , Hamid Sadeghian , Sami Haddadin

Zero-shot and few-shot learning aim to improve generalization to unseen concepts, which are promising in many realistic scenarios. Due to the lack of data in unseen domain, relation modeling between seen and unseen domains is vital for…

Machine Learning · Computer Science 2019-09-02 Chenrui Zhang , Xiaoqing Lyu , Zhi Tang

We present a novel approach for the procedural construction of multi-step contact-rich manipulation tasks in robotics. Our generator takes as input user-defined sets of atomic actions, objects, and spatial predicates and outputs solvable…

Robotics · Computer Science 2025-07-15 Michal Vavrecka , Radoslav Skoviera , Gabriela Sejnova , Karla Stepanova

Vision-based grasp estimation is an essential part of robotic manipulation tasks in the real world. Existing planar grasp estimation algorithms have been demonstrated to work well in relatively simple scenes. But when it comes to complex…

Computer Vision and Pattern Recognition · Computer Science 2023-07-14 Haozhe Wang , Zhiyang Liu , Lei Zhou , Huan Yin , Marcelo H Ang

The rational design of novel molecules with desired bioactivity is a critical but challenging task in drug discovery, especially when treating a novel target family or understudied targets. Here, we propose PGMG, a pharmacophore-guided deep…

Biomolecules · Quantitative Biology 2022-07-05 Huimin Zhu , Renyi Zhou , Jing Tang , Min Li

Federated Learning (FL) is a distributed machine learning scheme in which clients jointly participate in the collaborative training of a global model by sharing model information rather than their private datasets. In light of concerns…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-09-17 Kangyang Luo , Shuai Wang , Yexuan Fu , Renrong Shao , Xiang Li , Yunshi Lan , Ming Gao , Jinlong Shu

Building generalist robots capable of performing functional grasping in everyday, open-world environments remains a significant challenge due to the vast diversity of objects and tasks. Existing methods are either constrained to narrow…

Robotics · Computer Science 2026-04-10 Chao Tang , Jiacheng Xu , Haofei Lu , Bolin Zou , Wenlong Dong , Hong Zhang , Danica Kragic