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In biomedical studies, it is often desirable to characterize the interactive mode of multiple disease outcomes beyond their marginal risk. Ising model is one of the most popular choices serving for this purpose. Nevertheless, learning…

统计方法学 · 统计学 2023-11-28 Daiqing Wu , Molei Liu

EEG-based emotion recognition often requires sufficient labeled training samples to build an effective computational model. Labeling EEG data, on the other hand, is often expensive and time-consuming. To tackle this problem and reduce the…

机器学习 · 计算机科学 2021-07-29 Guangyi Zhang , Ali Etemad

In digital pathology, segmenting densely distributed objects like glands and nuclei is crucial for downstream analysis. Since detailed pixel-wise annotations are very time-consuming, we need semi-supervised segmentation methods that can…

图像与视频处理 · 电气工程与系统科学 2024-07-18 Meilong Xu , Xiaoling Hu , Saumya Gupta , Shahira Abousamra , Chao Chen

The problem of fully supervised classification is that it requires a tremendous amount of annotated data, however, in many datasets a large portion of data is unlabeled. To alleviate this problem semi-supervised learning (SSL) leverages the…

机器学习 · 计算机科学 2022-07-26 Ehsan Kazemi

The structure of a network is an unlabeled graph, yet graphs in most models of complex networks are labeled by meaningless random integers. Is the associated labeling noise always negligible, or can it overpower the network-structural…

物理与社会 · 物理学 2022-11-21 Jeremy Paton , Harrison Hartle , Huck Stepanyants , Pim van der Hoorn , Dmitri Krioukov

This work examines the problem of graph learning over a diffusion network when data can be collected from a limited portion of the network (partial observability). The main question is to establish technical guarantees of consistent…

统计理论 · 数学 2020-06-08 Vincenzo Matta , Augusto Santos , Ali H. Sayed

Graph Convolutional Networks (GCNs) have been proved successful in the field of semi-supervised node classification by extracting structural information from graph data. However, the random selection of labeled nodes used by GCNs may lead…

机器学习 · 计算机科学 2023-01-12 Yao Xiao , Ji Xu , Jing Yang , Shaobo Li

Since real-world objects and their interactions are often multi-modal and multi-typed, heterogeneous networks have been widely used as a more powerful, realistic, and generic superclass of traditional homogeneous networks (graphs).…

社会与信息网络 · 计算机科学 2020-12-18 Carl Yang , Yuxin Xiao , Yu Zhang , Yizhou Sun , Jiawei Han

Anomaly detection plays a crucial role in various real-world applications, including healthcare and finance systems. Owing to the limited number of anomaly labels in these complex systems, unsupervised anomaly detection methods have…

机器学习 · 计算机科学 2023-10-10 Zongyuan Huang , Baohua Zhang , Guoqiang Hu , Longyuan Li , Yanyan Xu , Yaohui Jin

Research on Graph Structure Learning (GSL) provides key insights for graph-based clustering, yet current methods like Graph Neural Networks (GNNs), Graph Attention Networks (GATs), and contrastive learning often rely heavily on the original…

机器学习 · 计算机科学 2025-05-21 Jingyun Zhang , Hao Peng , Li Sun , Guanlin Wu , Chunyang Liu , Zhengtao Yu

Semi-supervised anomaly detection, which aims to improve the anomaly detection performance by using a small amount of labeled anomaly data in addition to unlabeled data, has attracted attention. Existing semi-supervised approaches assume…

机器学习 · 统计学 2025-02-11 Hiroshi Takahashi , Tomoharu Iwata , Atsutoshi Kumagai , Yuuki Yamanaka

The advancement of deep learning has greatly improved supervised image classification. However, labeling data is costly, prompting research into unsupervised learning methods such as contrastive learning. In real-world scenarios, fully…

人工智能 · 计算机科学 2026-01-09 Shogo Nakayama , Masahiro Okuda

Few-shot node classification poses a significant challenge for Graph Neural Networks (GNNs) due to insufficient supervision and potential distribution shifts between labeled and unlabeled nodes. Self-training has emerged as a widely popular…

机器学习 · 计算机科学 2024-01-22 Fali Wang , Tianxiang Zhao , Suhang Wang

The amount of manually labeled data is limited in medical applications, so semi-supervised learning and automatic labeling strategies can be an asset for training deep neural networks. However, the quality of the automatically generated…

机器学习 · 计算机科学 2022-03-04 Wenhui Cui , Haleh Akrami , Anand A. Joshi , Richard M. Leahy

Deep learning demands a huge amount of well-labeled data to train the network parameters. How to use the least amount of labeled data to obtain the desired classification accuracy is of great practical significance, because for many…

机器学习 · 计算机科学 2019-12-20 Xiao Han , Zihao Wang , Enmei Tu , Gunnam Suryanarayana , Jie Yang

Semi-supervised learning is becoming increasingly important because it can combine data carefully labeled by humans with abundant unlabeled data to train deep neural networks. Classic methods on semi-supervised learning that have focused on…

计算机视觉与模式识别 · 计算机科学 2019-09-20 Ahmet Iscen , Giorgos Tolias , Yannis Avrithis , Ondrej Chum

In machine learning, one must acquire labels to help supervise a model that will be able to generalize to unseen data. However, the labeling process can be tedious, long, costly, and error-prone. It is often the case that most of our data…

机器学习 · 计算机科学 2020-09-29 Bruno Klaus de Aquino Afonso , Lilian Berton

Online structure learning approaches, such as those stemming from Statistical Relational Learning, enable the discovery of complex relations in noisy data streams. However, these methods assume the existence of fully-labelled training data,…

人工智能 · 计算机科学 2019-02-21 Evangelos Michelioudakis , Alexander Artikis , Georgios Paliouras

Traditional graph-based semi-supervised learning (SSL) approaches, even though widely applied, are not suited for massive data and large label scenarios since they scale linearly with the number of edges $|E|$ and distinct labels $m$. To…

机器学习 · 计算机科学 2016-05-17 Sujith Ravi , Qiming Diao

The emergence of graph neural networks (GNNs) has offered a powerful tool for semi-supervised node classification tasks. Subsequent studies have achieved further improvements through refining the message passing schemes in GNN models or…

机器学习 · 计算机科学 2025-11-26 Songbo Wang , Renchi Yang , Yurui Lai , Xiaoyang Lin , Tsz Nam Chan