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Sleep constitutes a key indicator of human health, performance, and quality of life. Sleep deprivation has long been related to the onset, development, and worsening of several mental and metabolic disorders, constituting an essential…

Signal Processing · Electrical Eng. & Systems 2023-01-25 María Martínez-García , Fernando Moreno-Pino , Pablo M. Olmos , Antonio Artés-Rodríguez

Elastic Riemannian metrics have been used successfully in the past for statistical treatments of functional and curve shape data. However, this usage has suffered from an important restriction: the function boundaries are assumed fixed and…

Methodology · Statistics 2021-05-19 Darshan Bryner , Anuj Srivastava

We consider the problem of estimating the difference between two functional undirected graphical models with shared structures. In many applications, data are naturally regarded as high-dimensional random function vectors rather than…

Machine Learning · Statistics 2019-11-19 Boxin Zhao , Y. Samuel Wang , Mladen Kolar

Parkinsons Disease is a neurological disorder and prevalent in elderly people. Traditional ways to diagnose the disease rely on in-person subjective clinical evaluations on the quality of a set of activity tests. The high-resolution…

Machine Learning · Computer Science 2020-10-16 Weijian Li , Wei Zhu , E. Ray Dorsey , Jiebo Luo

Through the quantification of physical activity energy expenditure (PAEE), health care monitoring has the potential to stimulate vital and healthy ageing, inducing behavioural changes in older people and linking these to personal health…

Signal Processing · Electrical Eng. & Systems 2022-01-12 Stylianos Paraschiakos , Cláudio Rebelo de Sá , Jeremiah Okai , Eline P. Slagboom , Marian Beekman , Arno Knobbe

The passive body-area electrostatic field has recently been aspiringly explored for wearable motion sensing, harnessing its two thrilling characteristics: full-body motion sensitivity and environmental sensitivity, which potentially…

Systems and Control · Electrical Eng. & Systems 2025-01-14 Sizhen Bian , Vitor Fortes Rey , Siyu Yuan , Paul Lukowicz

The assessment and treatment of motor symptoms such as tremor in Parkinson's disease depends exclusively on the physician's visual observation of standardised movements (i.e. motor tasks). Wearable sensors such as accelerometers are able to…

Signal Processing · Electrical Eng. & Systems 2021-08-05 R. P. Bremm , A. Werle , C. Auer , F. Hertel , J. Gonçalves , K. P. Koch

Passive monitoring in daily life may provide invaluable insights about a person's health throughout the day. Wearable sensor devices are likely to play a key role in enabling such monitoring in a non-obtrusive fashion. However, sensor data…

Human-Computer Interaction · Computer Science 2020-04-08 Yordan P. Raykov , Luc J. W. Evers , Reham Badawy , Bastiaan Bloem , Tom M. Heskes , Marjan Meinders , Kasper Claes , Max A. Little

Epidemiological simulations as a method are used to better understand and predict the spreading of infectious diseases, for example of COVID-19. This paper presents an approach that combines person-centric data-driven human mobility…

The rapid development of deep-learning enabled task-oriented communications (TOC) significantly shifts the paradigm of wireless communications. However, the high computation demands, particularly in resource-constrained systems e.g., mobile…

Image and Video Processing · Electrical Eng. & Systems 2025-07-11 Jingwen Fu , Ming Xiao , Chao Ren , Mikael Skoglund

Wearable devices permit the continuous monitoring of biological processes, such as blood glucose metabolism, and behavior, such as sleep quality and physical activity. The continuous monitoring often occurs in epochs of 60 seconds over…

Methodology · Statistics 2024-04-23 Yuanyuan Luan , Roger S. Zoh , Erjia Cui , Xue Lan , Sneha Jadhav , Carmen D. Tekwe

Currently used clinical assessments for physical function do not objectively quantify daily activities in routine living. Wearable activity monitors enable objective measurement of routine daily activities, but do not map to clinically…

Applications · Statistics 2018-01-29 Vibhu Agarwal , Matthew Smuck , Nigam H Shah

Human activity recognition has become an attractive research area with the development of on-body wearable sensing technology. With comfortable electronic-textiles, sensors can be embedded into clothing so that it is possible to record…

Robotics · Computer Science 2022-09-26 Tianchen Shen , Irene Di Giulio , Matthew Howard

Physical activity is disrupted in many psychiatric disorders. Advances in everyday technologies (e.g. accelerometers in smart phones) opens exciting possibilities for non-intrusive acquisition of activity data. Successful exploitation of…

Quantitative Methods · Quantitative Biology 2016-12-19 Justin J. Chapman , James A. Roberts , Vinh T. Nguyen , Michael Breakspear

Modern mobile health (mHealth) assessment combines self-reported measures of participants' health experiences with passively collected health behavior data throughout the day. These data are collected across multiple measurement scales,…

Methodology · Statistics 2026-03-13 Debangan Dey , Rahul Ghosal , Kathleen Merikangas , Vadim Zipunnikov

In Functional Data Analysis, data are commonly assumed to be smooth functions on a fixed interval of the real line. In this work, we introduce a comprehensive framework for the analysis of functional data, whose domain is a two-dimensional…

Methodology · Statistics 2019-08-02 Eardi Lila , John A. D. Aston

Missing data is among the most prominent challenges in the analysis of physical activity (PA) data collected from wearable devices, with the threat of nonignorabile missingness arising when patterns of device wear relate to underlying…

Chronic Obstructive Pulmonary Disease (COPD) is a chronic lung condition characterized by airflow obstruction. Current diagnostic methods primarily rely on identifying prominent features in spirometry (Volume-Flow time series) to detect…

Machine Learning · Computer Science 2025-03-04 Shuhao Mei , Xin Li , Yuxi Zhou , Jiahao Xu , Yong Zhang , Yuxuan Wan , Shan Cao , Qinghao Zhao , Shijia Geng , Junqing Xie , Shengyong Chen , Shenda Hong

Between 2011 and 2014 NHANES collected objectively measured physical activity data using wrist-worn accelerometers for tens of thousands of individuals for up to seven days. In this study, we analyze minute-level indicators of being active,…

Methodology · Statistics 2025-04-01 Xinkai Zhou , Julia Wrobel , Ciprian M. Crainiceanu , Andrew Leroux

Chronic obstructive pulmonary disease (COPD) is one of the most common chronic illnesses in the world and the third leading cause of mortality worldwide. It is often underdiagnosed or not diagnosed until later in the disease course.…