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Automated analysis of 12-lead electrocardiogram (ECG) plays a crucial role in the early screening and management of cardiovascular diseases (CVDs). In practice, it is common to see multiple co-occurring cardiac disorders, i.e., multi-label…

Signal Processing · Electrical Eng. & Systems 2023-06-07 Eedara Prabhakararao , Samarendra Dandapt

To improve the detection accuracy and generalization of steganalysis, this paper proposes the Steganalysis Contrastive Framework (SCF) based on contrastive learning. The SCF improves the feature representation of steganalysis by maximizing…

Artificial Intelligence · Computer Science 2021-03-02 Yanzhen Ren , Yiwen Liu , Lina Wang

The automatic classification of medical time series signals, such as electroencephalogram (EEG) and electrocardiogram (ECG), plays a pivotal role in clinical decision support and early detection of diseases. Although Transformer based…

Machine Learning · Computer Science 2025-09-22 Ming Hu , Jianfu Yin , Mingyu Dou , Yuqi Wang , Ruochen Dang , Siyi Liang , Feiyu Zhu , Cong Hu , Yao Wang , Bingliang Hu , Quan Wang

Deep learning models have been deployed in an increasing number of edge and mobile devices to provide healthcare. These models rely on training with a tremendous amount of labeled data to achieve high accuracy. However, for medical…

Machine Learning · Computer Science 2022-02-16 Yawen Wu , Dewen Zeng , Zhepeng Wang , Yi Sheng , Lei Yang , Alaina J. James , Yiyu Shi , Jingtong Hu

EEG foundation models are typically pretrained on narrow-source clinical archives and evaluated on benchmarks from the same ecosystem, leaving unclear whether representations encode neural physiology or recording-distribution artifacts. We…

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…

Machine Learning · Computer Science 2024-02-22 Yucheng Wu , Leye Wang , Xiao Han , Han-Jia Ye

Electronic health record (EHR) systems contain a wealth of multimodal clinical data including structured data like clinical codes and unstructured data such as clinical notes. However, many existing EHR-focused studies has traditionally…

Machine Learning · Statistics 2025-08-20 Tianxi Cai , Feiqing Huang , Ryumei Nakada , Linjun Zhang , Doudou Zhou

Early detection of cardiovascular diseases is crucial for effective treatment and an electrocardiogram (ECG) is pivotal for diagnosis. The accuracy of Deep Learning based methods for ECG signal classification has progressed in recent years…

Signal Processing · Electrical Eng. & Systems 2022-04-12 Likith Reddy , Vivek Talwar , Shanmukh Alle , Raju. S. Bapi , U. Deva Priyakumar

Physiological signals such as electrocardiograms (ECG) and electroencephalograms (EEG) provide complementary insights into human health and cognition, yet multi-modal integration is challenging due to limited multi-modal labeled data, and…

Electroencephalography (EEG) is a non-invasive technique for recording brain activity, widely used in brain-computer interfaces, clinic, and healthcare. Traditional EEG deep models typically focus on specific dataset and task, limiting…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Ang Li , Zikai Wang , Liuyin Yang , Zhenyu Wang , Tianheng Xu , Honglin Hu , Marc M. Van Hulle

Local class imbalance and data heterogeneity across clients often trap prototype-based federated contrastive learning in a prototype bias loop: biased local prototypes induced by imbalanced data are aggregated into biased global prototypes,…

Machine Learning · Computer Science 2026-03-04 Tian-Shuang Wu , Shen-Huan Lyu , Ning Chen , Yi-Xiao He , Bing Tang , Baoliu Ye , Qingfu Zhang

The diagnostic value of electrocardiogram (ECG) lies in its dynamic characteristics, ranging from rhythm fluctuations to subtle waveform deformations that evolve across time and frequency domains. However, supervised ECG models tend to…

Signal Processing · Electrical Eng. & Systems 2025-07-29 He-Yang Xu , Hongxiang Gao , Yuwen Li , Xiu-Shen Wei , Chengyu Liu

Electroencephalogram (EEG)-based emotion recognition is vital for affective computing but faces challenges in feature utilization and cross-domain generalization. This work introduces EmotionCLIP, which reformulates recognition as an…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Rui Yan , Yibo Li , Han Ding , Fei Wang

Recent advances in brain-inspired artificial intelligence have sought to align neural signals with visual semantics using multimodal models such as CLIP. However, existing methods often treat CLIP as a static feature extractor, overlooking…

Information Retrieval · Computer Science 2025-11-13 Jiyuan Wang , Li Zhang , Haipeng Lin , Qile Liu , Gan Huang , Ziyu Li , Zhen Liang , Xia Wu

Event extraction (EE) has considerably benefited from pre-trained language models (PLMs) by fine-tuning. However, existing pre-training methods have not involved modeling event characteristics, resulting in the developed EE models cannot…

Computation and Language · Computer Science 2021-06-01 Ziqi Wang , Xiaozhi Wang , Xu Han , Yankai Lin , Lei Hou , Zhiyuan Liu , Peng Li , Juanzi Li , Jie Zhou

Simultaneous electrocardiography (ECG) and phonocardiogram (PCG) provide a comprehensive, multimodal perspective on cardiac function by capturing the heart's electrical and mechanical activities, respectively. However, the distinct and…

Machine Learning · Computer Science 2025-06-13 Sajjad Karimi , Amit J. Shah , Gari D. Clifford , Reza Sameni

We develop a multi-task convolutional neural network (CNN) to classify multiple diagnoses from 12-lead electrocardiograms (ECGs) using a dataset comprised of over 40,000 ECGs, with labels derived from cardiologist clinical interpretations.…

The electrocardiogram or ECG has been in use for over 100 years and remains the most widely performed diagnostic test to characterize cardiac structure and electrical activity. We hypothesized that parallel advances in computing power,…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Geoffrey H. Tison , Jeffrey Zhang , Francesca N. Delling , Rahul C. Deo

In the evolving landscape of ECG signal analysis, the challenge of limited transparency in machine learning models remains a significant barrier to their effective integration into clinical practice. This study addresses this issue by…

Signal Processing · Electrical Eng. & Systems 2024-12-09 Toygar Tanyel , Sezgin Atmaca , Kaan Gökçe , M. Yiğit Balık , Arda Güler , Emre Aslanger , İlkay Öksüz

Synthetic electrocardiogram generation serves medical AI applications requiring privacy-preserving data sharing and training dataset augmentation. Current diffusion-based methods achieve high generation quality but require hundreds of…

Signal Processing · Electrical Eng. & Systems 2025-09-16 Vitalii Bondar , Serhii Semenov , Vira Babenko , Dmytro Holovniak