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Sleep is a crucial aspect of our overall health and well-being. It plays a vital role in regulating our mental and physical health, impacting our mood, memory, and cognitive function to our physical resilience and immune system. The…

Background: Obstructive sleep apnea (OSA) is growing increasingly prevalent in many countries as obesity rises. Sufficient, effective treatment of OSA entails high social and financial costs for healthcare. Objective: For treatment…

Artificial Intelligence · Computer Science 2023-01-31 Zhaoyang Chen , Lina Siltala-Li , Mikko Lassila , Pekka Malo , Eeva Vilkkumaa , Tarja Saaresranta , Arho Veli Virkki

Supervised machine learning applications in the health domain often face the problem of insufficient training datasets. The quantity of labelled data is small due to privacy concerns and the cost of data acquisition and labelling by a…

Machine Learning · Computer Science 2021-12-10 Konstantinos Nikolaidis , Stein Kristiansen , Vera Goebel , Thomas Plagemann , Knut Liestøl , Mohan Kankanhalli

Radar-based respiratory measurement is a promising tool for the noncontact detection of sleep apnea. Our team has reported that apnea events can be accurately detected using the statistical characteristics of the amplitude of respiratory…

Signal Processing · Electrical Eng. & Systems 2025-05-27 Kodai Hasegawa , Shigeaki Okumura , Hirofumi Taki , Hironobu Sunadome , Satoshi Hamada , Susumu Sato , Kazuo Chin , Takuya Sakamoto

Recently, the scientific progress of Advanced Driver Assistance System solutions (ADAS) has played a key role in enhancing the overall safety of driving. ADAS technology enables active control of vehicles to prevent potentially risky…

Signal Processing · Electrical Eng. & Systems 2023-08-07 Francesco Rundo , Concetto Spampinato , Michael Rundo

Smart wearables enable continuous tracking of established biomarkers such as heart rate, heart rate variability, and blood oxygen saturation via photoplethysmography (PPG). Beyond these metrics, PPG waveforms contain richer physiological…

Polysomnography (PSG) signals are essential for studying sleep processes and diagnosing sleep disorders. Analyzing PSG data through deep neural networks (DNNs) for automated sleep monitoring has become increasingly feasible. However, the…

Machine Learning · Computer Science 2025-04-21 Yifei Wang , Qi Liu , Fuli Min , Honghao Wang

Sleep apnea is the most common sleep disturbance and it is an important risk factor for cardiovascular disorders. Its detection relies on a polysomnography, a combination of diverse exams. In order to detect changes due to sleep…

Medical Physics · Physics 2015-06-22 Sabrina Camargo , Maik Riedl , Celia Anteneodo , Juergen Kurths , Thomas Penzel , Niels Wessel

Non-intrusive presence detection of individuals in commercial buildings is much easier to implement than intrusive methods such as passive infrared, acoustic sensors, and camera. Individual power consumption, while providing useful feedback…

Human-Computer Interaction · Computer Science 2017-05-03 Ming Jin , Ruoxi Jia , Zhoayi Kang , Ioannis C. Konstantakopoulos , Costas Spanos

Background: Sleep staging is a fundamental component in the diagnosis of sleep disorders and the management of sleep health. Traditionally, this analysis is conducted in clinical settings and involves a time-consuming scoring procedure.…

Objective. Sleep is a critical physiological process that plays a vital role in maintaining physical and mental health. Accurate detection of arousals and sleep stages is essential for the diagnosis of sleep disorders, as frequent and…

Signal Processing · Electrical Eng. & Systems 2024-06-05 Hasan Zan , Abdulnasir Yildiz

Dementia is a neurodegenerative condition that combines several diseases and impacts millions around the world and those around them. Although cognitive impairment is profoundly disabling, it is the noncognitive features of dementia,…

Multimedia · Computer Science 2025-08-08 Abeer Badawi , Somayya Elmoghazy , Samira Choudhury , Sara Elgazzar , Khalid Elgazzar , Amer Burhan

Purpose: This study aims to enhance the clinical use of automated sleep-scoring algorithms by incorporating an uncertainty estimation approach to efficiently assist clinicians in the manual review of predicted hypnograms, a necessity due to…

Aspect-based sentiment analysis (ABSA) aims to identify aspect terms and determine their sentiment polarity. While dependency trees combined with contextual semantics provide structural cues, existing approaches often rely on dot-product…

Computation and Language · Computer Science 2026-03-10 Xinfeng Liao , Xuanqi Chen , Lianxi Wang , Jiahuan Yang , Zhuowei Chen , Ziying Rong

We introduce an entropy-based classification method for pairs of sequences (ECPS) for quantifying mutual dependencies in heart rate and beat-to-beat blood pressure recordings. The purpose of the method is to build a classifier for data in…

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

Polycystic Ovary Syndrome (PCOS) is a widespread disorder in women of reproductive age, characterized by a hormonal imbalance, irregular periods, and multiple ovarian cysts. Infertility, metabolic syndrome, and cardiovascular risks are…

Image and Video Processing · Electrical Eng. & Systems 2026-02-06 Shayan Abrar , Samura Rahman , Ishrat Jahan Momo , Mahjabin Tasnim Samiha , B. M. Shahria Alam , Mohammad Tahmid Noor , Nishat Tasnim Niloy

Objective dyslexia diagnosis is not a straighforward task since it is traditionally performed by means of the intepretation of different behavioural tests. Moreover, these tests are only applicable to readers. This way, early diagnosis…

Signal Processing · Electrical Eng. & Systems 2023-10-20 Andrés Ortiz , Francisco J. Martinez-Murcia , Marco A. Formoso , Juan Luis Luque , Auxiliadora Sánchez

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 is a fundamental physiological process that is essential for sustaining a healthy body and mind. The gold standard for clinical sleep monitoring is polysomnography(PSG), based on which sleep can be categorized into five stages,…

Machine Learning · Computer Science 2021-11-22 Bing Zhai , Yu Guan , Michael Catt , Thomas Ploetz
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