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We seek to evaluate the detection performance of a rapid primary screening tool of Covid-19 solely based on the cough sound from 8,380 clinically validated samples with laboratory molecular-test (2,339 Covid-19 positives and 6,041 Covid-19…

In this article we propose the use of accelerometer embedded by default in smartphone as a cost-effective, reliable and efficient way to provide remote physical activity monitoring for the elderly and people requiring healthcare service.…

Human-Computer Interaction · Computer Science 2013-11-06 Hamed Ketabdar , Jalaluddin Qureshi , Pan Hui

Indoor air quality plays an essential role in the safety and well-being of occupants, especially in the context of airborne diseases. This paper introduces AeroSafe, a novel approach aimed at enhancing the efficacy of indoor air…

Sleep disorders are very widespread in the world population and suffer from a generalized underdiagnosis, given the complexity of their diagnostic methods. Therefore, there is an increasing interest in developing simpler screening methods.…

Signal Processing · Electrical Eng. & Systems 2021-02-08 Ramiro Casal , Leandro E. Di Persia , Gastón Schlotthauer

This paper presents an indoor occupancy estimator with which we can estimate the number of real-time indoor occupants based on the carbon dioxide (CO2) measurement. The estimator is actually a dynamic model of the occupancy level. To…

Systems and Control · Computer Science 2016-07-21 Chaoyang Jiang , Mustafa K. Masood , Yeng Chai Soh , Hua Li

Sepsis, characterized by a dysregulated immune response to infection, results in significant mortality, morbidity, and healthcare costs. The timely prediction of sepsis progression is crucial for reducing adverse outcomes through early…

Machine Learning · Computer Science 2026-01-01 Alireza Rafiei , Farshid Hajati , Alireza Rezaee , Amirhossien Panahi , Shahadat Uddin

Persistent coughs are a major symptom of respiratory-related diseases. Increasing research attention has been paid to detecting coughs using wearables, especially during the COVID-19 pandemic. Among all types of sensors utilized, microphone…

Machine Learning · Computer Science 2021-11-09 Shibo Zhang , Ebrahim Nemati , Minh Dinh , Nathan Folkman , Tousif Ahmed , Mahbubur Rahman , Jilong Kuang , Nabil Alshurafa , Alex Gao

Objective: Chronic obstructive pulmonary disease (COPD) is a highly prevalent chronic condition. COPD is a major source of morbidity, mortality and healthcare costs. Spirometry is the gold standard test for a definitive diagnosis and…

Signal Processing · Electrical Eng. & Systems 2020-12-11 Jeremy Levy , Daniel Alvarez , Felix del Campo , Joachim A. Behar

Acuity assessments are vital in critical care settings to provide timely interventions and fair resource allocation. Traditional acuity scores rely on manual assessments and documentation of physiological states, which can be…

Objective: To develop multisensor-wearable-device sleep monitoring algorithms that are robust to health disruptions affecting sleep patterns. Methods: We develop an unsupervised transfer learning algorithm based on a multivariate hidden…

In this work, we propose a bi-directional long short-term memory (BiLSTM) network based COVID-19 detection method using breath/speech/cough signals. By using the acoustic signals to train the network, respectively, we can build individual…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-10 Xing-Yu Chen , Qiu-Shi Zhu , Jie Zhang , Li-Rong Dai

Acute brain dysfunctions (ABD), which include coma and delirium, are prevalent in the ICU, especially among older patients. The current approach in manual assessment of ABD by care providers may be sporadic and subjective. Hence, there…

Detection of nocturnal seizures in epilepsy patients is essential, both for the quick management of the seizure complications, and for the assessment of the ongoing seizure treatment. Traditional seizure detection products (e.g.,…

Signal Processing · Electrical Eng. & Systems 2021-07-29 Belal Korany , Yasamin Mostofi

The proportion of elderly people is increasing worldwide, particularly those living alone in Japan. As elderly people get older, their risks of physical disabilities and health issues increase. To automatically discover these issues at a…

Machine Learning · Computer Science 2024-11-21 Kai Tanaka , Mineichi Kudo , Keigo Kimura , Atsuyoshi Nakamura

Background: We propose a method for estimating the timing of in-bed intervals using objective data in a large representative U.S. sample, and quantify the association between these intervals and age, sex, and day of the week. Methods: The…

Sleep has been shown to be an indispensable and important component of patients recovery process. Nonetheless, sleep quality of patients in the Intensive Care Unit (ICU) is often low, due to factors such as noise, pain, and frequent nursing…

Quantitative Methods · Quantitative Biology 2020-10-14 Vasundhra Iyengar , Azra Bihorac , Parisa Rashidi

Non-invasive devices involved in the detection of drowsiness generally include infrared camera and Electroencephalography (EEG), of which sometimes are constrained in an actual real-life scenario deployments and implementations such as in…

Understanding the sleep quality and architecture is essential to human being's health, which is usually represented using multiple sleep stages. A standard sleep stage determination requires Electroencephalography (EEG) signals during the…

Signal Processing · Electrical Eng. & Systems 2019-09-26 Yuezhou Zhang , Zhicheng Yang , Ke Lan , Xiaoli Liu , Zhengbo Zhang , Peiyao Li , Desen Cao , Jiewen Zheng , Jianli Pan

More and more conventional electromechanical meters are being replaced with smart meters because of their substantial benefits such as providing faster bi-directional communication between utility services and end users, enabling direct…

Machine Learning · Computer Science 2020-10-27 ibrahim Yilmaz , Ambareen Siraj

Study Objectives: Wrist accelerometry is widely used for inferring sleep-wake state. Previous works demonstrated poor wake detection, without cross-device generalizability and validation in different age range and sleep disorders. We…

Quantitative Methods · Quantitative Biology 2025-12-02 Nasim Montazeri , Stone Yang , Dominik Luszczynski , John Zhang , Dharmendra Gurve , Andrew Centen , Maged Goubran , Andrew Lim