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Accurate interpretation of electrocardiogram (ECG) remains challenging due to the scarcity of labeled data and the high cost of expert annotation. Self-supervised learning (SSL) offers a promising solution by enabling models to learn…

Artificial Intelligence · Computer Science 2026-04-14 Zehao Qin , Xiaojian Lin , Ping Zhang , Hongliang Wu , Xinkang Wang , Guangling Liu , Bo Chen , Wenming Yang , Guijin Wang

EEG signals are usually simple to obtain but expensive to label. Although supervised learning has been widely used in the field of EEG signal analysis, its generalization performance is limited by the amount of annotated data.…

Machine Learning · Computer Science 2021-09-17 Xue Jiang , Jianhui Zhao , Bo Du , Zhiyong Yuan

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…

Signal Processing · Electrical Eng. & Systems 2022-06-16 Sahar Soltanieh , Ali Etemad , Javad Hashemi

Self-supervised learning has produced impressive results in multimedia domains of audio, vision and speech. This paradigm is equally, if not more, relevant for the domain of biosignals, owing to the scarcity of labelled data in such…

Machine Learning · Computer Science 2024-03-07 Aditya Kommineni , Kleanthis Avramidis , Richard Leahy , Shrikanth Narayanan

We exploit a self-supervised deep multi-task learning framework for electrocardiogram (ECG) -based emotion recognition. The proposed solution consists of two stages of learning a) learning ECG representations and b) learning to classify…

Signal Processing · Electrical Eng. & Systems 2020-08-11 Pritam Sarkar , Ali Etemad

Datasets for biosignals, such as electroencephalogram (EEG) and electrocardiogram (ECG), often have noisy labels and have limited number of subjects (<100). To handle these challenges, we propose a self-supervised approach based on…

Machine Learning · Computer Science 2020-07-10 Joseph Y. Cheng , Hanlin Goh , Kaan Dogrusoz , Oncel Tuzel , Erdrin Azemi

In recent years, self-supervised learning methods have shown significant improvement for pre-training with unlabeled data and have proven helpful for electrocardiogram signals. However, most previous pre-training methods for…

Machine Learning · Computer Science 2022-03-21 Jungwoo Oh , Hyunseung Chung , Joon-myoung Kwon , Dong-gyun Hong , Edward Choi

Objective. Supervised learning paradigms are often limited by the amount of labeled data that is available. This phenomenon is particularly problematic in clinically-relevant data, such as electroencephalography (EEG), where labeling can be…

Machine Learning · Statistics 2020-08-03 Hubert Banville , Omar Chehab , Aapo Hyvärinen , Denis-Alexander Engemann , Alexandre Gramfort

Recently, many efforts have been made to explore how the brain processes speech using electroencephalographic (EEG) signals, where deep learning-based approaches were shown to be applicable in this field. In order to decode speech signals…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-24 Qiushi Zhu , Xiaoying Zhao , Jie Zhang , Yu Gu , Chao Weng , Yuchen Hu

This position paper argues that current benchmarking practice in 12-lead ECG representation learning must be fixed to ensure progress is reliable and aligned with clinically meaningful objectives. The field has largely converged on three…

Machine Learning · Computer Science 2026-02-20 Zachary Berger , Daniel Prakah-Asante , John Guttag , Collin M. Stultz

Self-supervised contrastive learning is an effective approach for addressing the challenge of limited labelled data. This study builds upon the previously established two-stage patch-level, multi-label classification method for…

Computer Vision and Pattern Recognition · Computer Science 2026-02-09 Salma Haidar , José Oramas

Labeling of multivariate biomedical time series data is a laborious and expensive process. Self-supervised contrastive learning alleviates the need for large, labeled datasets through pretraining on unlabeled data. However, for multivariate…

Machine Learning · Statistics 2023-07-21 Thea Brüsch , Mikkel N. Schmidt , Tommy S. Alstrøm

Deep learning has demonstrated significant improvements in medical image segmentation using a sufficiently large amount of training data with manual labels. Acquiring well-representative labels requires expert knowledge and exhaustive…

Computer Vision and Pattern Recognition · Computer Science 2021-06-15 Jinxi Xiang , Zhuowei Li , Wenji Wang , Qing Xia , Shaoting Zhang

In the medical field, current ECG signal analysis approaches rely on supervised deep neural networks trained for specific tasks that require substantial amounts of labeled data. However, our paper introduces ECGBERT, a self-supervised…

Signal Processing · Electrical Eng. & Systems 2023-06-13 Seokmin Choi , Sajad Mousavi , Phillip Si , Haben G. Yhdego , Fatemeh Khadem , Fatemeh Afghah

The supervised learning paradigm is limited by the cost - and sometimes the impracticality - of data collection and labeling in multiple domains. Self-supervised learning, a paradigm which exploits the structure of unlabeled data to create…

The 12-lead electrocardiogram (ECG) is a quasi-periodic, multi-channel signal with diagnostic content spanning timescales from millisecond waveform morphology to multi-second rhythm dynamics. Existing ECG representation learning relies on…

Computational Engineering, Finance, and Science · Computer Science 2026-05-26 Lei Xu , Fahad Sohrab , Mehmet Yamac , Merja Heinaniemi , Moncef Gabbouj

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…

Machine Learning · Computer Science 2021-07-29 Guangyi Zhang , Ali Etemad

Objective: Electrocardiograms (ECGs) play a crucial role in diagnosing heart conditions; however, the effectiveness of artificial intelligence (AI)-based ECG analysis is often hindered by the limited availability of labeled data.…

Pre-training a recognition model with contrastive learning on a large dataset of unlabeled data has shown great potential to boost the performance of a downstream task, e.g., image classification. However, in domains such as medical…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Jizong Peng , Ping Wang , Chrisitian Desrosiers , Marco Pedersoli

This work discusses the use of contrastive learning and deep learning for diagnosing cardiovascular diseases from electrocardiography (ECG) signals. While the ECG signals usually contain 12 leads (channels), many healthcare facilities and…

Signal Processing · Electrical Eng. & Systems 2023-04-24 Tue M. Cao , Nhat H. Tran , Phi Le Nguyen , Hieu Pham
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