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Graph contrastive learning (GCL) has recently achieved substantial advancements. Existing GCL approaches compare two different ``views'' of the same graph in order to learn node/graph representations. The underlying assumption of these…

机器学习 · 计算机科学 2024-01-18 Gehang Zhang , Bowen Yu , Jiangxia Cao , Xinghua Zhang , Jiawei Sheng , Chuan Zhou , Tingwen Liu

Graph contrastive learning (GCL) has emerged as a state-of-the-art strategy for learning representations of diverse graphs including social and biomedical networks. GCL widely uses stochastic graph topology augmentation, such as uniform…

机器学习 · 计算机科学 2024-02-22 Yucheng Wu , Leye Wang , Xiao Han , Han-Jia Ye

An electrocardiogram (ECG) is a widely used, cost-effective tool for detecting electrical abnormalities in the heart. However, it cannot directly measure functional parameters, such as ventricular volumes and ejection fraction, which are…

图像与视频处理 · 电气工程与系统科学 2025-06-27 Alexander Selivanov , Philip Müller , Özgün Turgut , Nil Stolt-Ansó , Daniel Rückert

The embedding of Biomedical Knowledge Graphs (BKGs) generates robust representations, valuable for a variety of artificial intelligence applications, including predicting drug combinations and reasoning disease-drug relationships.…

数据库 · 计算机科学 2023-10-17 Zhiguang Fan , Yuedong Yang , Mingyuan Xu , Hongming Chen

Analysis of cardiac ultrasound images is commonly performed in routine clinical practice for quantification of cardiac function. Its increasing automation frequently employs deep learning networks that are trained to predict disease or…

计算机视觉与模式识别 · 计算机科学 2021-08-09 Agisilaos Chartsias , Shan Gao , Angela Mumith , Jorge Oliveira , Kanwal Bhatia , Bernhard Kainz , Arian Beqiri

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

Graph few-shot learning has attracted increasing attention due to its ability to rapidly adapt models to new tasks with only limited labeled nodes. Despite the remarkable progress made by existing graph few-shot learning methods, several…

机器学习 · 计算机科学 2025-10-23 Yonghao Liu , Yajun Wang , Chunli Guo , Wei Pang , Ximing Li , Fausto Giunchiglia , Xiaoyue Feng , Renchu Guan

Heterogeneous graph representation learning (HGRL) is essential for modeling complex systems with diverse node and edge types. However, most existing methods are limited to closed-world settings with shared schemas and feature spaces,…

机器学习 · 计算机科学 2026-03-31 Xuanze Chen , Jiajun Zhou , Yadong Li , Shanqing Yu , Qi Xuan

Universal, transferable whole-slide image (WSI) representations are central to computational pathology. Incorporating multiple markers (e.g., immunohistochemistry, IHC) alongside H&E enriches H&E-based features with diverse, biologically…

计算机视觉与模式识别 · 计算机科学 2025-12-04 Yizhi Zhang , Lei Fan , Zhulin Tao , Donglin Di , Yang Song , Sidong Liu , Cong Cong

Medical time series data, such as EEG and ECG, are vital for diagnosing neurological and cardiovascular diseases. However, their precise interpretation faces significant challenges due to high annotation costs, leading to data scarcity, and…

机器学习 · 计算机科学 2026-01-13 Kaito Tanaka , Aya Nakayama , Masato Ito , Yuji Nishimura , Keisuke Matsuda

Contrastive Language-Image Pre-training (CLIP) has shown powerful zero-shot learning performance. Few-shot learning aims to further enhance the transfer capability of CLIP by giving few images in each class, aka 'few shots'. Most existing…

计算机视觉与模式识别 · 计算机科学 2024-04-22 Yaohui Li , Qifeng Zhou , Haoxing Chen , Jianbing Zhang , Xinyu Dai , Hao Zhou

This paper proposes CODER: contrastive learning on knowledge graphs for cross-lingual medical term representation. CODER is designed for medical term normalization by providing close vector representations for different terms that represent…

计算与语言 · 计算机科学 2021-05-19 Zheng Yuan , Zhengyun Zhao , Haixia Sun , Jiao Li , Fei Wang , Sheng Yu

Contrastive learning has demonstrated strong performance in attributed hypergraph clustering. Typically, existing methods based on contrastive learning first learn node embeddings and then apply clustering algorithms, such as k-means, to…

机器学习 · 计算机科学 2026-03-11 Li Ni , Shuaikang Zeng , Lin Mu , Longlong Lin

Event Causality Identification (ECI) refers to the detection of causal relations between events in texts. However, most existing studies focus on sentence-level ECI with high-resource languages, leaving more challenging document-level ECI…

计算与语言 · 计算机科学 2024-03-25 Zhitao He , Pengfei Cao , Zhuoran Jin , Yubo Chen , Kang Liu , Zhiqiang Zhang , Mengshu Sun , Jun Zhao

Few-shot learning is an established topic in natural images for years, but few work is attended to histology images, which is of high clinical value since well-labeled datasets and rare abnormal samples are expensive to collect. Here, we…

图像与视频处理 · 电气工程与系统科学 2022-02-21 Jiawei Yang , Hanbo Chen , Jiangpeng Yan , Xiaoyu Chen , Jianhua Yao

In order to submit a claim to insurance companies, a doctor needs to code a patient encounter with both the diagnosis (ICDs) and procedures performed (CPTs) in an Electronic Health Record (EHR). Identifying and applying relevant procedures…

机器学习 · 统计学 2021-12-30 Hasham Ul Haq , Rameel Ahmad , Sibt Ul Hussain

Recently, heterogeneous Graph Neural Networks (GNNs) have become a de facto model for analyzing HGs, while most of them rely on a relative large number of labeled data. In this work, we investigate Contrastive Learning (CL), a key component…

机器学习 · 计算机科学 2021-09-01 Yanqiao Zhu , Yichen Xu , Hejie Cui , Carl Yang , Qiang Liu , Shu Wu

Generative query rewrite generates reconstructed query rewrites using the conversation history while rely heavily on gold rewrite pairs that are expensive to obtain. Recently, few-shot learning is gaining increasing popularity for this…

计算与语言 · 计算机科学 2024-03-19 Yifei Yuan , Chen Shi , Runze Wang , Liyi Chen , Renjun Hu , Zengming Zhang , Feijun Jiang , Wai Lam

Previous deep learning efforts have focused on improving the performance of Pulmonary Embolism(PE) diagnosis from Computed Tomography (CT) scans using Convolutional Neural Networks (CNN). However, the features from CT scans alone are not…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Santosh Sanjeev , Salwa K. Al Khatib , Mai A. Shaaban , Ibrahim Almakky , Vijay Ram Papineni , Mohammad Yaqub

Electrocardiogram (ECG) interpretation requires specialized expertise, often involving synthesizing insights from ECG signals with complex clinical queries posed in natural language. The scarcity of labeled ECG data coupled with the diverse…

机器学习 · 计算机科学 2025-05-09 Jialu Tang , Tong Xia , Yuan Lu , Cecilia Mascolo , Aaqib Saeed