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Self-supervised learning methods for medical images primarily rely on the imaging modality during pretraining. While such approaches deliver promising results, they do not leverage associated patient or scan information collected within…

计算机视觉与模式识别 · 计算机科学 2024-10-01 Saeed Shurrab , Alejandro Guerra-Manzanares , Farah E. Shamout

This paper systematically investigates the effectiveness of various augmentations for contrastive self-supervised learning of electrocardiogram (ECG) signals and identifies the best parameters. The baseline of our proposed self-supervised…

信号处理 · 电气工程与系统科学 2022-06-16 Sahar Soltanieh , Ali Etemad , Javad Hashemi

In the past decade, with the development of big data technology, an increasing amount of patient information has been stored as electronic health records (EHRs). Leveraging these data, various doctor recommendation systems have been…

信息检索 · 计算机科学 2022-07-14 Luning Bi , Yunlong Wang , Fan Zhang , Zhuqing Liu , Yong Cai , Emily Zhao

Network representation learning seeks to embed networks into a low-dimensional space while preserving the structural and semantic properties, thereby facilitating downstream tasks such as classification, trait prediction, edge…

机器学习 · 统计学 2025-09-16 Zihan Dong , Xin Zhou , Ryumei Nakada , Lexin Li , Linjun Zhang

Modern electronic health records (EHRs) hold immense promise in tracking personalized patient health trajectories through sequential deep learning, owing to their extensive breadth, scale, and temporal granularity. Nonetheless, how to…

Electronic Health Records (EHR) offer rich real-world data for personalized medicine, providing insights into disease progression, treatment responses, and patient outcomes. However, their sparsity, heterogeneity, and high dimensionality…

统计方法学 · 统计学 2025-05-28 Linshanshan Wang , Mengyan Li , Zongqi Xia , Molei Liu , Tianxi Cai

Self-supervised contrastive learning is among the recent representation learning methods that have shown performance gains in several downstream tasks including semantic segmentation. This paper evaluates strong data augmentation, one of…

图像与视频处理 · 电气工程与系统科学 2025-12-11 Azeez Idris , Abdurahman Ali Mohammed , Samuel Fanijo

Recently, Graph Neural Networks (GNNs) achieve remarkable success in Recommendation. To reduce the influence of data sparsity, Graph Contrastive Learning (GCL) is adopted in GNN-based CF methods for enhancing performance. Most GCL methods…

信息检索 · 计算机科学 2023-02-07 Junjie Huang , Qi Cao , Ruobing Xie , Shaoliang Zhang , Feng Xia , Huawei Shen , Xueqi Cheng

Clinical predictive models often rely on patients' electronic health records (EHR), but integrating medical knowledge to enhance predictions and decision-making is challenging. This is because personalized predictions require personalized…

人工智能 · 计算机科学 2024-01-19 Pengcheng Jiang , Cao Xiao , Adam Cross , Jimeng Sun

The fundamental goal of self-supervised learning (SSL) is to produce useful representations of data without access to any labels for classifying the data. Modern methods in SSL, which form representations based on known or constructed…

机器学习 · 计算机科学 2022-09-30 Bobak T. Kiani , Randall Balestriero , Yubei Chen , Seth Lloyd , Yann LeCun

We present an end-to-end, interpretable, deep-learning architecture to learn a graph kernel that predicts the outcome of chronic disease drug prescription. This is achieved through a deep metric learning collaborative with a Support Vector…

机器学习 · 计算机科学 2020-08-06 Hao-Ren Yao , Der-Chen Chang , Ophir Frieder , Wendy Huang , I-Chia Liang , Chi-Feng Hung

Unsupervised heterogeneous graph representation learning (UHGRL) has gained increasing attention due to its significance in handling practical graphs without labels. However, heterophily has been largely ignored, despite its ubiquitous…

机器学习 · 计算机科学 2025-02-05 Zhixiang Shen , Zhao Kang

Machine learning has revolutionized the modeling of clinical timeseries data. Using machine learning, a Deep Neural Network (DNN) can be automatically trained to learn a complex mapping of its input features for a desired task. This is…

机器学习 · 计算机科学 2024-10-15 Ryan King , Shivesh Kodali , Conrad Krueger , Tianbao Yang , Bobak J. Mortazavi

Instance segmentation in electron microscopy (EM) volumes is tough due to complex shapes and sparse annotations. Self-supervised learning helps but still struggles with intricate visual patterns in EM. To address this, we propose a…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Yinda Chen , Wei Huang , Xiaoyu Liu , Shiyu Deng , Qi Chen , Zhiwei Xiong

The wide adoption of Electronic Health Records (EHR) has resulted in large amounts of clinical data becoming available, which promises to support service delivery and advance clinical and informatics research. Deep learning techniques have…

机器学习 · 计算机科学 2022-02-14 Thanh Nguyen-Duc , Natasha Mulligan , Gurdeep S. Mannu , Joao H. Bettencourt-Silva

Heterogeneous graph neural networks can represent information of heterogeneous graphs with excellent ability. Recently, self-supervised learning manner is researched which learns the unique expression of a graph through a contrastive…

机器学习 · 计算机科学 2022-01-12 Minjae Park

Self-supervised instance discrimination is an effective contrastive pretext task to learn feature representations and address limited medical image annotations. The idea is to make features of transformed versions of the same images similar…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Yejia Zhang , Xinrong Hu , Nishchal Sapkota , Yiyu Shi , Danny Z. Chen

Graph contrastive learning (GCL) aims to align the positive features while differentiating the negative features in the latent space by minimizing a pair-wise contrastive loss. As the embodiment of an outstanding discriminative unsupervised…

机器学习 · 计算机科学 2023-12-27 Jiangmeng Li , Yifan Jin , Hang Gao , Wenwen Qiang , Changwen Zheng , Fuchun Sun

The wide implementation of electronic health record (EHR) systems facilitates the collection of large-scale health data from real clinical settings. Despite the significant increase in adoption of EHR systems, this data remains largely…

定量方法 · 定量生物学 2018-10-26 Jinghe Zhang , Kamran Kowsari , James H. Harrison , Jennifer M. Lobo , Laura E. Barnes

Electrocardiograms (ECGs) are widely used non-invasive measurements of cardiac activity and play a central role in clinical diagnosis. Recent multimodal approaches align ECG signals with clinical reports to incorporate diagnostic semantics,…