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Hypergraphs can model higher-order relationships among data objects that are found in applications such as social networks and bioinformatics. However, recent studies on hypergraph learning that extend graph convolutional networks to…

机器学习 · 计算机科学 2024-05-29 Yumeng Song , Yu Gu , Tianyi Li , Jianzhong Qi , Zhenghao Liu , Christian S. Jensen , Ge Yu

Medical image representations can be learned through medical vision-language contrastive learning (mVLCL) where medical imaging reports are used as weak supervision through image-text alignment. These learned image representations can be…

计算机视觉与模式识别 · 计算机科学 2025-02-10 Mingjian Li , Mingyuan Meng , Michael Fulham , David Dagan Feng , Lei Bi , Jinman Kim

Semi-supervised learning (SSL) provides a powerful framework for leveraging unlabeled data when labels are limited or expensive to obtain. SSL algorithms based on deep neural networks have recently proven successful on standard benchmark…

机器学习 · 计算机科学 2019-05-28 Jiaxing Wang , Yin Zheng , Xiaoshuang Chen , Junzhou Huang , Jian Cheng

Semi-supervised medical image segmentation has shown promise in training models with limited labeled data and abundant unlabeled data. However, state-of-the-art methods ignore a potentially valuable source of unsupervised semantic…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Qianying Liu , Paul Henderson , Xiao Gu , Hang Dai , Fani Deligianni

Curating large-scale fully annotated datasets is expensive, laborious, and cumbersome, especially for medical images. Several methods have been proposed in the literature that make use of weak annotations in the form of scribbles. However,…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Ke Zhang , Vishal M. Patel

Hyperspectral image (HSI) clustering is a challenging task due to its high complexity. Despite subspace clustering shows impressive performance for HSI, traditional methods tend to ignore the global-local interaction in HSI data. In this…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Jingxin Wang , Renxiang Guan , Kainan Gao , Zihao Li , Hao Li , Xianju Li , Chang Tang

Graph contrastive learning defines a contrastive task to pull similar instances close and push dissimilar instances away. It learns discriminative node embeddings without supervised labels, which has aroused increasing attention in the past…

机器学习 · 计算机科学 2023-04-25 Lin Shu , Chuan Chen , Zibin Zheng

Although having achieved great success in medical image segmentation, deep learning-based approaches usually require large amounts of well-annotated data, which can be extremely expensive in the field of medical image analysis. Unlabeled…

计算机视觉与模式识别 · 计算机科学 2020-07-01 Yingda Xia , Dong Yang , Zhiding Yu , Fengze Liu , Jinzheng Cai , Lequan Yu , Zhuotun Zhu , Daguang Xu , Alan Yuille , Holger Roth

Prevailing deep graph learning models often suffer from label sparsity issue. Although many graph few-shot learning (GFL) methods have been developed to avoid performance degradation in face of limited annotated data, they excessively rely…

机器学习 · 计算机科学 2022-10-04 Chunhui Zhang , Hongfu Liu , Jundong Li , Yanfang Ye , Chuxu Zhang

The success of deep learning methods in medical image segmentation tasks usually requires a large amount of labeled data. However, obtaining reliable annotations is expensive and time-consuming. Semi-supervised learning has attracted much…

图像与视频处理 · 电气工程与系统科学 2021-07-13 Yichi Zhang , Jicong Zhang

Medical image segmentation is challenging due to the diversity of medical images and the lack of labeled data, which motivates recent developments in federated semi-supervised learning (FSSL) to leverage a large amount of unlabeled data…

计算机视觉与模式识别 · 计算机科学 2025-08-06 Zhipeng Deng , Zhe Xu , Tsuyoshi Isshiki , Yefeng Zheng

Recent advancements in Graph Contrastive Learning (GCL) have demonstrated remarkable effectiveness in improving graph representations. However, relying on predefined augmentations (e.g., node dropping, edge perturbation, attribute masking)…

机器学习 · 计算机科学 2025-02-27 Khaled Mohammed Saifuddin , Shihao Ji , Esra Akbas

Contrastive Learning (CL) performances as a rising approach to address the challenge of sparse and noisy recommendation data. Although having achieved promising results, most existing CL methods only perform either hand-crafted data or…

信息检索 · 计算机科学 2023-11-22 Xiuyuan Qin , Huanhuan Yuan , Pengpeng Zhao , Junhua Fang , Fuzhen Zhuang , Guanfeng Liu , Victor Sheng

Inspired by the successful application of contrastive learning on graphs, researchers attempt to impose graph contrastive learning approaches on heterogeneous information networks. Orthogonal to homogeneous graphs, the types of nodes and…

机器学习 · 计算机科学 2023-09-06 Yuanyuan Guo , Yu Xia , Rui Wang , Rongcheng Duan , Lu Li , Jiangmeng Li

Biological brains learn continually from a stream of unlabeled data, while integrating specialized information from sparsely labeled examples without compromising their ability to generalize. Meanwhile, machine learning methods are…

机器学习 · 计算机科学 2026-01-27 Viet Anh Khoa Tran , Emre Neftci , Willem A. M. Wybo

Multi-view representation learning has developed rapidly over the past decades and has been applied in many fields. However, most previous works assumed that each view is complete and aligned. This leads to an inevitable deterioration in…

计算机视觉与模式识别 · 计算机科学 2022-11-10 Yiming Wang , Dongxia Chang , Zhiqiang Fu , Jie Wen , Yao Zhao

Fine-tuning pre-trained language models (PLMs) has demonstrated its effectiveness on various downstream NLP tasks recently. However, in many low-resource scenarios, the conventional fine-tuning strategies cannot sufficiently capture the…

计算与语言 · 计算机科学 2021-11-15 Yusheng Su , Xu Han , Yankai Lin , Zhengyan Zhang , Zhiyuan Liu , Peng Li , Jie Zhou , Maosong Sun

Recent advances in deep learning have made it increasingly feasible to estimate heart rate remotely in smart environments by analyzing videos. However, a notable limitation of deep learning methods is their heavy reliance on extensive sets…

计算机视觉与模式识别 · 计算机科学 2023-10-25 Divij Gupta , Ali Etemad

Hierarchical multi-label text classification (HMTC) aims at utilizing a label hierarchy in multi-label classification. Recent approaches to HMTC deal with the problem of imposing an over-constrained premise on the output space by using…

计算与语言 · 计算机科学 2024-06-21 Simon Yu , Jie He , Víctor Gutiérrez-Basulto , Jeff Z. Pan

The recent emergence of contrastive learning approaches facilitates the application on graph representation learning (GRL), introducing graph contrastive learning (GCL) into the literature. These methods contrast semantically similar and…

机器学习 · 计算机科学 2022-06-03 Ganqu Cui , Yufeng Du , Cheng Yang , Jie Zhou , Liang Xu , Xing Zhou , Xingyi Cheng , Zhiyuan Liu