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Learning generalizable self-supervised graph representations for downstream tasks is challenging. To this end, Contrastive Learning (CL) has emerged as a leading approach. The embeddings of CL are arranged on a hypersphere where similarity…

Machine Learning · Computer Science 2025-02-25 Yifei Zhang , Hao Zhu , Menglin Yang , Jiahong Liu , Rex Ying , Irwin King , Piotr Koniusz

The goal of imitation learning (IL) is to learn a good policy from high-quality demonstrations. However, the quality of demonstrations in reality can be diverse, since it is easier and cheaper to collect demonstrations from a mix of experts…

Machine Learning · Computer Science 2019-09-17 Voot Tangkaratt , Bo Han , Mohammad Emtiyaz Khan , Masashi Sugiyama

We introduce a fast model based deep learning approach for calibrationless parallel MRI reconstruction. The proposed scheme is a non-linear generalization of structured low rank (SLR) methods that self learn linear annihilation filters from…

Machine Learning · Computer Science 2020-01-22 Aniket Pramanik , Hemant Aggarwal , Mathews Jacob

Parallel imaging is a commonly used technique to accelerate magnetic resonance imaging (MRI) data acquisition. Mathematically, parallel MRI reconstruction can be formulated as an inverse problem relating the sparsely sampled k-space…

Image and Video Processing · Electrical Eng. & Systems 2023-11-23 Ruimin Feng , Qing Wu , Jie Feng , Huajun She , Chunlei Liu , Yuyao Zhang , Hongjiang Wei

We introduce One-Shot Dual-Arm Imitation Learning (ODIL), which enables dual-arm robots to learn precise and coordinated everyday tasks from just a single demonstration of the task. ODIL uses a new three-stage visual servoing (3-VS) method…

Robotics · Computer Science 2025-03-11 Yilong Wang , Edward Johns

Contrastive learning (CL) aims to learn useful representation without relying on expert annotations in the context of medical image segmentation. Existing approaches mainly contrast a single positive vector (i.e., an augmentation of the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Chenyu You , Ruihan Zhao , Lawrence Staib , James S. Duncan

Imitation learning (IL) enables robots to acquire skills quickly by transferring expert knowledge, which is widely adopted in reinforcement learning (RL) to initialize exploration. However, in long-horizon motion planning tasks, a…

Robotics · Computer Science 2021-03-30 Sha Luo , Hamidreza Kasaei , Lambert Schomaker

We investigate the learning of implicit neural representation (INR) using an overparameterized multilayer perceptron (MLP) via a novel nonparametric teaching perspective. The latter offers an efficient example selection framework for…

Machine Learning · Computer Science 2024-05-20 Chen Zhang , Steven Tin Sui Luo , Jason Chun Lok Li , Yik-Chung Wu , Ngai Wong

Class-incremental learning (CIL) for endoscopic image analysis is crucial for real-world clinical applications, where diagnostic models should continuously adapt to evolving clinical data while retaining performance on previously learned…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Bingrong Liu , Jun Shi , Yushan Zheng

How to represent an image? While the visual world is presented in a continuous manner, machines store and see the images in a discrete way with 2D arrays of pixels. In this paper, we seek to learn a continuous representation for images.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Yinbo Chen , Sifei Liu , Xiaolong Wang

Deep learning (DL) has emerged as a powerful tool for accelerated MRI reconstruction, but often necessitates a database of fully-sampled measurements for training. Recent self-supervised and unsupervised learning approaches enable training…

Image and Video Processing · Electrical Eng. & Systems 2023-11-30 Burhaneddin Yaman , Seyed Amir Hossein Hosseini , Mehmet Akçakaya

Learning feature correspondence is a foundational task in computer vision, holding immense importance for downstream applications such as visual odometry and 3D reconstruction. Despite recent progress in data-driven models, feature…

Computer Vision and Pattern Recognition · Computer Science 2025-01-30 Zitong Zhan , Dasong Gao , Yun-Jou Lin , Youjie Xia , Chen Wang

This paper introduces a new method for semi-supervised learning on high dimensional nonlinear manifolds, which includes a phase of unsupervised basis learning and a phase of supervised function learning. The learned bases provide a set of…

Machine Learning · Statistics 2009-06-30 Kai Yu , Tong Zhang

In this paper, we consider cross-domain imitation learning (CDIL) in which an agent in a target domain learns a policy to perform well in the target domain by observing expert demonstrations in a source domain without accessing any reward…

Machine Learning · Computer Science 2020-09-28 Sungho Choi , Seungyul Han , Woojun Kim , Youngchul Sung

Deep learning (DL) has shown promise for faster, high quality accelerated MRI reconstruction. However, supervised DL methods depend on extensive amounts of fully-sampled (labeled) data and are sensitive to out-of-distribution (OOD) shifts,…

We tackle the problem of class incremental learning (CIL) in the realm of landcover classification from optical remote sensing (RS) images in this paper. The paradigm of CIL has recently gained much prominence given the fact that data are…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 S Divakar Bhat , Biplab Banerjee , Subhasis Chaudhuri , Avik Bhattacharya

Annotating large-scale LiDAR point clouds for 3D semantic segmentation is costly and time-consuming, which motivates the use of semi-supervised learning (SemiSL). Standard LiDAR SemiSL methods typically adopt a two-step training paradigm,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Bin Yang , Alexandru Paul Condurache

The goal of reinforcement learning (RL) is to find a policy that maximizes the expected cumulative return. It has been shown that this objective can be represented as an optimization problem of state-action visitation distribution under…

Machine Learning · Computer Science 2024-01-29 Harshit Sikchi , Qinqing Zheng , Amy Zhang , Scott Niekum

The advent of pre-trained Vision-Language Models (VLMs) has significantly transformed Continual Learning (CL), mainly due to their zero-shot classification abilities. Such proficiency makes VLMs well-suited for real-world applications,…

Artificial Intelligence · Computer Science 2025-10-15 Aniello Panariello , Emanuele Frascaroli , Pietro Buzzega , Lorenzo Bonicelli , Angelo Porrello , Simone Calderara

Multiple Instance Learning (MIL) methods have become increasingly popular for classifying giga-pixel sized Whole-Slide Images (WSIs) in digital pathology. Most MIL methods operate at a single WSI magnification, by processing all the tissue…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Kevin Thandiackal , Boqi Chen , Pushpak Pati , Guillaume Jaume , Drew F. K. Williamson , Maria Gabrani , Orcun Goksel