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Automated and accurate human activity recognition (HAR) using body-worn sensors enables practical and cost efficient remote monitoring of Activity of DailyLiving (ADL), which are shown to provide clinical insights across multiple…

Signal Processing · Electrical Eng. & Systems 2023-05-01 Maximilien Burq , Niranjan Sridhar

Missing data is a common concern in health datasets, and its impact on good decision-making processes is well documented. Our study's contribution is a methodology for tackling missing data problems using a combination of synthetic dataset…

Machine Learning · Computer Science 2022-11-08 Gift Khangamwa , Terence L. van Zyl , Clint J. van Alten

Sleep is important for everyday functioning, overall well-being, and quality of life. Recent advances in wearable sensing technology have enabled continuous, noninvasive, and cost-effective monitoring of sleep patterns in real-world natural…

Human-Computer Interaction · Computer Science 2025-07-08 Tiantian Feng , Brandon M Booth , Karel Mundnich , Emily Zhou , Benjamin Girault , Kristina Lerman , Shrikanth Narayanan

Social navigation and pedestrian behavior research has shifted towards machine learning-based methods and converged on the topic of modeling inter-pedestrian interactions and pedestrian-robot interactions. For this, large-scale datasets…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Allan Wang , Daisuke Sato , Yasser Corzo , Sonya Simkin , Abhijat Biswas , Aaron Steinfeld

Existing activity tracker datasets for human activity recognition are typically obtained by having participants perform predefined activities in an enclosed environment under supervision. This results in small datasets with a limited number…

Human-Computer Interaction · Computer Science 2024-03-01 Shing Chan , Hang Yuan , Catherine Tong , Aidan Acquah , Abram Schonfeldt , Jonathan Gershuny , Aiden Doherty

This paper illustrates how multilevel functional models can detect and characterize biomechanical changes along different sport training sessions. Our analysis focuses on the relevant cases to identify differences in knee biomechanics in…

Applications · Statistics 2021-04-07 Marcos Matabuena , Sherveen Riazati , Nick Caplan , Phil Hayes

Biosensors and wearable sensor systems with transmitting capabilities are currently developed and used for the monitoring of health data, exercise activities, and other performance data. Unlike conventional approaches, these devices enable…

Human-Computer Interaction · Computer Science 2020-11-12 Birgitta Dresp-Langley

The great success of wearables and smartphone apps for provision of extensive physical workout instructions boosts a whole industry dealing with consumer oriented sensors and sports equipment. But with these opportunities there are also new…

Computers and Society · Computer Science 2017-11-23 Andre Ebert , Marie Kiermeier , Chadly Marouane , Claudia Linnhoff-Popien

Pedestrian trajectory prediction is crucial for several applications such as robotics and self-driving vehicles. Significant progress has been made in the past decade thanks to the availability of pedestrian trajectory datasets, which…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Pranav Singh Chib , Pravendra Singh

Missing data arises when certain values are not recorded or observed for variables of interest. However, most of the statistical theory assume complete data availability. To address incomplete databases, one approach is to fill the gaps…

Human activity recognition (HAR) using wearable sensors has advanced through various machine learning paradigms, each with inherent trade-offs between performance and labeling requirements. While fully supervised techniques achieve high…

Machine Learning · Computer Science 2025-12-24 Taoran Sheng , Manfred Huber

This study investigates the impact of masking strategies on time series imputation models in healthcare settings. While current approaches predominantly rely on random masking for model evaluation, this practice fails to capture the…

Machine Learning · Computer Science 2025-02-05 Linglong Qian , Yiyuan Yang , Wenjie Du , Jun Wang , Richard Dobsoni , Zina Ibrahim

Spatio-temporal action detection is an important and challenging problem in video understanding. The existing action detection benchmarks are limited in aspects of small numbers of instances in a trimmed video or low-level atomic actions.…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Yixuan Li , Lei Chen , Runyu He , Zhenzhi Wang , Gangshan Wu , Limin Wang

Accurate estimation of the human circadian phase plays an important role in personalized health monitoring, but most existing wearable-based approaches operate retrospectively and require full circadian cycle recordings, leading to high…

Signal Processing · Electrical Eng. & Systems 2026-05-05 Mengzhu Xu , Nemanja Cabrilo , Merel van Gilst , Jean-Paul Linnartz

The imputation of missing values in multivariate time series (MTS) data is critical in ensuring data quality and producing reliable data-driven predictive models. Apart from many statistical approaches, a few recent studies have proposed…

Machine Learning · Computer Science 2023-05-17 Maksims Kazijevs , Manar D. Samad

Current activity tracking technologies are largely trained on younger adults' data, which can lead to solutions that are not well-suited for older adults. To build activity trackers for older adults, it is crucial to collect training data…

Human-Computer Interaction · Computer Science 2022-04-04 Young-Ho Kim , Diana Chou , Bongshin Lee , Margaret Danilovich , Amanda Lazar , David E. Conroy , Hernisa Kacorri , Eun Kyoung Choe

Different technologies can acquire data for gait analysis, such as optical systems and inertial measurement units (IMUs). Each technology has its drawbacks and advantages, fitting best to particular applications. The presented multi-sensor…

Human-Computer Interaction · Computer Science 2021-12-01 Geise Santos , Marcelo Wanderley , Tiago Tavares , Anderson Rocha

Human activity recognition has grown in popularity with its increase of applications within daily lifestyles and medical environments. The goal of having efficient and reliable human activity recognition brings benefits such as accessible…

Machine Learning · Computer Science 2022-01-24 Rushit Dave , Naeem Seliya , Mounika Vanamala , Wei Tee

Multi-hypothesis tracking is a flexible and intuitive approach to tracking multiple nearby objects. However, the original formulation of its data association step is widely thought to scale poorly with the number of tracked objects. We…

Signal Processing · Electrical Eng. & Systems 2019-05-21 Michael Motro , Joydeep Ghosh

Skeleton-based temporal action segmentation is a fundamental yet challenging task, playing a crucial role in enabling intelligent systems to perceive and respond to human activities. While fully-supervised methods achieve satisfactory…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Hongsong Wang , Yiqin Shen , Pengbo Yan , Jie Gui