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Sleep staging plays an important role on the diagnosis of sleep disorders. In general, experts classify sleep stages manually based on polysomnography (PSG), which is quite time-consuming. Meanwhile, the acquisition process of multiple…

Machine Learning · Computer Science 2021-08-17 Huafeng Wang , Chonggang Lu , Qi Zhang , Zhimin Hu , Xiaodong Yuan , Pingshu Zhang , Wanquan Liu

Gold-standard sleep scoring is based on epoch-based assignment of sleep stages based on a combination of EEG, EOG and EMG signals. However, a polysomnographic recording consists of many other signals that could be used for sleep staging,…

Accurately diagnosing sleep disorders is essential for clinical assessments and treatments. Polysomnography (PSG) has long been used for detection of various sleep disorders. In this research, electrocardiography (ECG) and electromayography…

Machine Learning · Computer Science 2021-11-12 Delaram Jarchi , Javier Andreu-Perez , Mehrin Kiani , Oldrich Vysata , Jiri Kuchynka , Ales Prochazka , Saeid Sane

Objective: Evaluate a method for the estimation of the nocturnal systolic blood pressure (SBP) dip from 24-hour blood pressure trends using a wrist-worn photoplethysmography (PPG) sensor and a deep neural network in free-living individuals,…

Photoplethysmography is a non-invasive optical technique that measures changes in blood volume within tissues. It is commonly and increasingly used for in a variety of research and clinical application to assess vascular dynamics and…

Medical Physics · Physics 2023-09-26 Marton A. Goda , Peter H. Charlton , Joachim A. Behar

Remote photoplethysmography (rPPG) is a non-contact technique for measuring human physiological signals. Due to its convenience and non-invasiveness, it has demonstrated broad application potential in areas such as health monitoring and…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Zhipeng Li , Kegang Wang , Hanguang Xiao , Xingyue Liu , Feizhong Zhou , Jiaxin Jiang , Tianqi Liu

Polysomnographic sleep analysis is the standard clinical method to accurately diagnose and treat sleep disorders. It is an intricate process which involves the manual identification, classification, and location of multiple sleep event…

Signal Processing · Electrical Eng. & Systems 2025-05-29 Adriana Anido-Alonso , Diego Alvarez-Estevez

Study Objectives: Sleep stage scoring is performed manually by sleep experts and is prone to subjective interpretation of scoring rules with low intra- and interscorer reliability. Many automatic systems rely on few small-scale databases…

Computer Vision and Pattern Recognition · Computer Science 2020-08-24 Alexander Neergaard Olesen , Poul Jennum , Emmanuel Mignot , Helge B D Sorensen

Automatic sleep staging is a challenging problem and state-of-the-art algorithms have not yet reached satisfactory performance to be used instead of manual scoring by a sleep technician. Much research has been done to find good feature…

Machine Learning · Computer Science 2018-05-15 Martin Längkvist , Amy Loutfi

Sleep stages pattern provides important clues in diagnosing the presence of sleep disorder. By analyzing sleep stages pattern and extracting its features from EEG, EOG, and EMG signals, we can classify sleep stages. This study presents a…

Machine Learning · Computer Science 2016-10-07 Endang Purnama Giri , Mohamad Ivan Fanany , Aniati Murni Arymurthy

Hypertension is a medical condition characterized by high blood pressure, and classifying it into its various stages is crucial to managing the disease. In this project, a novel method is proposed for classifying stages of hypertension…

Machine Learning · Computer Science 2023-04-17 Graham Frederick , Yaswant T , Brintha Therese A

Accurate sleep stage classification is essential for understanding sleep disorders and improving overall health. This study proposes a novel three-stage approach for sleep stage classification using ECG signals, offering a more accessible…

Artificial Intelligence · Computer Science 2024-12-04 Poorya Aghaomidi , Ge Wang

Efficiently identifying sleep stages is crucial for unraveling the intricacies of sleep in both preclinical and clinical research. The labor-intensive nature of manual sleep scoring, demanding substantial expertise, has prompted a surge of…

Machine Learning · Computer Science 2024-12-23 Shadi Sartipi , Mie Andersen , Natalie Hauglund , Celia Kjaerby , Verena Untiet , Maiken Nedergaard , Mujdat Cetin

Sleep stages classification is a crucial task in the context of sleep studies. It involves the simultaneous analysis of multiple signals recorded during sleep. However, it is complex and tedious, and even the trained expert can spend…

Automated sleep stage classification typically employs a single population-agnostic model, disregarding established demographic variations in sleep architecture. Sleep patterns, however, differ substantially across gender, age, and…

Machine Learning · Computer Science 2026-05-05 S M Asif Hossain , Shruti Kshirsagar

Photoplethysmography (PPG) is one of the most widely captured biosignals for clinical prediction tasks, yet PPG-based algorithms are typically trained on small-scale datasets of uncertain quality, which hinders meaningful algorithm…

Machine Learning · Computer Science 2026-03-24 Mohammad Moulaeifard , Philip J. Aston , Peter H. Charlton , Nils Strodthoff

We have developed an automatic sleep stage classification algorithm based on deep residual neural networks and raw polysomnogram signals. Briefly, the raw data is passed through 50 convolutional layers before subsequent classification into…

Computer Vision and Pattern Recognition · Computer Science 2020-04-14 Alexander Neergaard Olesen , Poul Jennum , Paul Peppard , Emmanuel Mignot , Helge Bjarup Dissing Sorensen

Classification of sleep stages plays an essential role in diagnosing sleep-related diseases including Sleep Disorder Breathing (SDB) disease. In this study, we propose an end-to-end deep learning architecture, named SSNet, which comprises…

Signal Processing · Electrical Eng. & Systems 2023-07-12 Haifa Almutairi , Ghulam Mubashar Hassan , Amitava Datta

Bed-based pressure-sensitive mats (PSMs) offer a non-intrusive way of monitoring patients during sleep. We focus on four-way sleep position classification using data collected from a PSM placed under a mattress in a sleep clinic. Sleep…

Computer Vision and Pattern Recognition · Computer Science 2025-05-14 Olivier Papillon , Rafik Goubran , James Green , Julien Larivière-Chartier , Caitlin Higginson , Frank Knoefel , Rébecca Robillard

Sleep monitoring plays a crucial role in maintaining good health, with sleep staging serving as an essential metric in the monitoring process. Traditional methods, utilizing medical sensors like EEG and ECG, can be effective but often…

Signal Processing · Electrical Eng. & Systems 2024-10-31 Shuzhen Li , Yuxin Chen , Xuesong Chen , Ruiyang Gao , Yupeng Zhang , Chao Yu , Yunfei Li , Ziyi Ye , Weijun Huang , Hongliang Yi , Yue Leng , Yi Wu