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We study many-class few-shot (MCFS) problem in both supervised learning and meta-learning settings. Compared to the well-studied many-class many-shot and few-class few-shot problems, the MCFS problem commonly occurs in practical…

Machine Learning · Computer Science 2020-11-10 Lu Liu , Tianyi Zhou , Guodong Long , Jing Jiang , Chengqi Zhang

In skeleton-based human activity understanding, existing methods often adopt the contrastive learning paradigm to construct a discriminative feature space. However, many of these approaches fail to exploit the structural inter-class…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Hongda Liu , Yunfan Liu , Min Ren , Lin Sui , Yunlong Wang , Zhenan Sun

Object segmentation and structure localization are important steps in automated image analysis pipelines for microscopy images. We present a convolution neural network (CNN) based deep learning architecture for segmentation of objects in…

Computer Vision and Pattern Recognition · Computer Science 2019-01-24 Shan E Ahmed Raza , Linda Cheung , Muhammad Shaban , Simon Graham , David Epstein , Stella Pelengaris , Michael Khan , Nasir M. Rajpoot

Fine-grained classification is challenging because categories can only be discriminated by subtle and local differences. Variances in the pose, scale or rotation usually make the problem more difficult. Most fine-grained classification…

Computer Vision and Pattern Recognition · Computer Science 2014-11-25 Tianjun Xiao , Yichong Xu , Kuiyuan Yang , Jiaxing Zhang , Yuxin Peng , Zheng Zhang

Various Graph Neural Networks (GNNs) have been successful in analyzing data in non-Euclidean spaces, however, they have limitations such as oversmoothing, i.e., information becomes excessively averaged as the number of hidden layers…

Machine Learning · Computer Science 2024-01-23 Jaeyoon Sim , Sooyeon Jeon , InJun Choi , Guorong Wu , Won Hwa Kim

Convolutional neural networks (CNNs) have demonstrated gratifying results at learning discriminative features. However, when applied to unseen domains, state-of-the-art models are usually prone to errors due to domain shift. After…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Rang Meng , Xianfeng Li , Weijie Chen , Shicai Yang , Jie Song , Xinchao Wang , Lei Zhang , Mingli Song , Di Xie , Shiliang Pu

Artificial Neuronal Networks are models widely used for many scientific tasks. One of the well-known field of application is the approximation of high-dimensional problems via Deep Learning. In the present paper we investigate the Deep…

Numerical Analysis · Mathematics 2021-10-06 F. Calabrò , S. Cuomo , F. Giampaolo , S. Izzo , C. Nitsch , F. Piccialli , C. Trombetti

Training a neural network (NN) typically relies on some type of curve-following method, such as gradient descent (GD) (and stochastic gradient descent (SGD)), ADADELTA, ADAM or limited memory algorithms. Convergence for these algorithms…

Machine Learning · Computer Science 2023-05-08 Michael A Kouritzin , Stephen Styles , Beatrice-Helen Vritsiou

Few-shot learning that trains image classifiers over few labeled examples per category is a challenging task. In this paper, we propose to exploit an additional big dataset with different categories to improve the accuracy of few-shot…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Liangqu Long , Wei Wang , Jun Wen , Meihui Zhang , Qian Lin , Beng Chin Ooi

Few-shot classification consists of learning a predictive model that is able to effectively adapt to a new class, given only a few annotated samples. To solve this challenging problem, meta-learning has become a popular paradigm that…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Nikita Dvornik , Cordelia Schmid , Julien Mairal

Few-shot classification studies the problem of quickly adapting a deep learner to understanding novel classes based on few support images. In this context, recent research efforts have been aimed at designing more and more complex…

Computer Vision and Pattern Recognition · Computer Science 2022-02-21 Jun He , Richang Hong , Xueliang Liu , Mingliang Xu , Qianru Sun

Accurate medical image segmentation is essential for diagnosis and treatment planning of diseases. Convolutional Neural Networks (CNNs) have achieved state-of-the-art performance for automatic medical image segmentation. However, they are…

Image and Video Processing · Electrical Eng. & Systems 2020-11-05 Ran Gu , Guotai Wang , Tao Song , Rui Huang , Michael Aertsen , Jan Deprest , Sébastien Ourselin , Tom Vercauteren , Shaoting Zhang

Learning good feature embeddings for images often requires substantial training data. As a consequence, in settings where training data is limited (e.g., few-shot and zero-shot learning), we are typically forced to use a generic feature…

Computer Vision and Pattern Recognition · Computer Science 2019-04-15 Xin Wang , Fisher Yu , Ruth Wang , Trevor Darrell , Joseph E. Gonzalez

Deep learning models have emerged as the cornerstone of medical image segmentation, but their efficacy hinges on the availability of extensive manually labeled datasets and their adaptability to unforeseen categories remains a challenge.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-07 Lev Ayzenberg , Raja Giryes , Hayit Greenspan

Early detection and accurate diagnosis can predict the risk of malignant disease transformation, thereby increasing the probability of effective treatment. Identifying mild syndrome with small pathological regions serves as an ominous…

Image and Video Processing · Electrical Eng. & Systems 2026-01-15 Wei Dai , Rui Liu , Zixuan Wu , Tianyi Wu , Min Wang , Junxian Zhou , Yixuan Yuan , Jun Liu

Graph classification aims to extract accurate information from graph-structured data for classification and is becoming more and more important in graph learning community. Although Graph Neural Networks (GNNs) have been successfully…

Machine Learning · Computer Science 2020-06-24 Ning Ma , Jiajun Bu , Jieyu Yang , Zhen Zhang , Chengwei Yao , Zhi Yu , Sheng Zhou , Xifeng Yan

The task of link prediction aims to solve the problem of incomplete knowledge caused by the difficulty of collecting facts from the real world. GCNs-based models are widely applied to solve link prediction problems due to their…

Artificial Intelligence · Computer Science 2022-09-07 Shuanglong Yao , Dechang Pi , Junfu Chen , Yufei Liu , Zhiyuan Wu

The recent success of graph neural networks has significantly boosted molecular property prediction, advancing activities such as drug discovery. The existing deep neural network methods usually require large training dataset for each…

Machine Learning · Computer Science 2021-02-17 Zhichun Guo , Chuxu Zhang , Wenhao Yu , John Herr , Olaf Wiest , Meng Jiang , Nitesh V. Chawla

Incorporating human domain knowledge for breast tumor diagnosis is challenging, since shape, boundary, curvature, intensity, or other common medical priors vary significantly across patients and cannot be employed. This work proposes a new…

Image and Video Processing · Electrical Eng. & Systems 2020-09-03 Aleksandar Vakanski , Min Xian , Phoebe Freer

Understanding disease similarity is critical for advancing diagnostics, drug discovery, and personalized treatment strategies. We present PhenoGnet, a novel graph-based contrastive learning framework designed to predict disease similarity…

Genomics · Quantitative Biology 2025-09-18 Ranga Baminiwatte , Kazi Jewel Rana , Aaron J. Masino