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Wrist-bands such as smartwatches have become an unobtrusive interface for collecting physiological and contextual data from users. Smartwatches are being used for smart healthcare, telecare, and wellness monitoring. In this paper, we used…

Computers and Society · Computer Science 2018-08-21 Debanjan Borthakur , Andrew Peltier , Harishchandra Dubey , Joshua Gyllinsky , Kunal Mankodiya

Deep learning models for human activity recognition (HAR) based on sensor data have been heavily studied recently. However, the generalization ability of deep models on complex real-world HAR data is limited by the availability of…

Computer Vision and Pattern Recognition · Computer Science 2021-06-30 Chenglin Li , Carrie Lu Tong , Di Niu , Bei Jiang , Xiao Zuo , Lei Cheng , Jian Xiong , Jianming Yang

Recent advances in deep learning have achieved promising performance for medical image analysis, while in most cases ground-truth annotations from human experts are necessary to train the deep model. In practice, such annotations are…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Jianbo Jiao , Richard Droste , Lior Drukker , Aris T. Papageorghiou , J. Alison Noble

Stress is widely recognized as a major contributor to a variety of health issues. Stress prediction using biosignal data recorded by wearables is a key area of study in mobile sensing research because real-time stress prediction can enable…

Machine Learning · Computer Science 2023-08-14 Tanvir Islam , Peter Washington

Human activity recognition (HAR) in wearable computing is typically based on direct processing of sensor data. Sensor readings are translated into representations, either derived through dedicated preprocessing, or integrated into…

Machine Learning · Computer Science 2023-06-05 Harish Haresamudram , Irfan Essa , Thomas Ploetz

Recent years have witnessed the rapid development of human activity recognition (HAR) based on wearable sensor data. One can find many practical applications in this area, especially in the field of health care. Many machine learning…

Machine Learning · Computer Science 2019-05-16 H. D. Nguyen , K. P. Tran , X. Zeng , L. Koehl , G. Tartare

A deep latent variable model is a powerful method for capturing complex distributions. These models assume that underlying structures, but unobserved, are present within the data. In this dissertation, we explore high-dimensional problems…

Machine Learning · Computer Science 2024-06-13 Khuong Vo

With the progress of sensor technology in wearables, the collection and analysis of PPG signals are gaining more interest. Using Machine Learning, the cardiac rhythm corresponding to PPG signals can be used to predict different tasks such…

Signal Processing · Electrical Eng. & Systems 2022-12-20 Ramin Ghorbani , Marcel J. T. Reinders , David M. J. Tax

This work investigates the unexplored usability of self-supervised representation learning in the direction of functional knowledge transfer. In this work, functional knowledge transfer is achieved by joint optimization of self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2023-07-11 Prakash Chandra Chhipa , Muskaan Chopra , Gopal Mengi , Varun Gupta , Richa Upadhyay , Meenakshi Subhash Chippa , Kanjar De , Rajkumar Saini , Seiichi Uchida , Marcus Liwicki

A major barrier to the personalized Human Activity Recognition using wearable sensors is that the performance of the recognition model drops significantly upon adoption of the system by new users or changes in physical/ behavioral status of…

Computer Vision and Pattern Recognition · Computer Science 2018-01-26 Seyed Ali Rokni , Marjan Nourollahi , Hassan Ghasemzadeh

Sensor-based human activity recognition is a key technology for many human-centered intelligent applications. However, this research is still in its infancy and faces many unresolved challenges. To address these, we propose a comprehensive…

Signal Processing · Electrical Eng. & Systems 2025-04-08 Hanyu Liu , Ying Yu , Hang Xiao , Siyao Li , Xuze Li , Jiarui Li , Haotian Tang

In semi-supervised learning, methods that rely on confidence learning to generate pseudo-labels have been widely proposed. However, increasing research finds that when faced with noisy and biased data, the model's representation network is…

Computer Vision and Pattern Recognition · Computer Science 2024-04-29 Yanbiao Ma , Licheng Jiao , Fang Liu , Lingling Li , Shuyuan Yang , Xu Liu

Training deep learning models on in-home IoT sensory data is commonly used to recognise human activities. Recently, federated learning systems that use edge devices as clients to support local human activity recognition have emerged as a…

Machine Learning · Computer Science 2021-04-01 Yuchen Zhao , Hanyang Liu , Honglin Li , Payam Barnaghi , Hamed Haddadi

Despite the success of fully-supervised human skeleton sequence modeling, utilizing self-supervised pre-training for skeleton sequence representation learning has been an active field because acquiring task-specific skeleton annotations at…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Yuxiao Chen , Long Zhao , Jianbo Yuan , Yu Tian , Zhaoyang Xia , Shijie Geng , Ligong Han , Dimitris N. Metaxas

This study proposes an unsupervised sequence-to-sequence learning approach that automatically assesses the motion-induced reliability degradation of the cardiac volume signal (CVS) in multi-channel electrical impedance-based hemodynamic…

Signal Processing · Electrical Eng. & Systems 2023-05-18 Chang Min Hyun , Tae-Geun Kim , Kyounghun Lee

In recent years, deep learning algorithms have become increasingly more prominent for their unparalleled ability to automatically learn discriminant features from large amounts of data. However, within the field of electromyography-based…

Human motion detection is getting considerable attention in the field of Artificial Intelligence (AI) driven healthcare systems. Human motion can be used to provide remote healthcare solutions for vulnerable people by identifying particular…

Signal Processing · Electrical Eng. & Systems 2020-08-07 William Taylor , Syed Aziz Shah , Kia Dashtipour , Adnan Zahid , Qammer H. Abbasi , Muhammad Ali Imran

Human Activity Recognition (HAR) based on the sensors of mobile/wearable devices aims to detect the physical activities performed by humans in their daily lives. Although supervised learning methods are the most effective in this task,…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Sannara Ek , Riccardo Presotto , Gabriele Civitarese , François Portet , Philippe Lalanda , Claudio Bettini

We describe a novel metric-based learning approach that introduces a multimodal framework and uses deep audio and geophone encoders in siamese configuration to design an adaptable and lightweight supervised model. This framework eliminates…

Sound · Computer Science 2021-11-16 Muhammad Shakeel , Katsutoshi Itoyama , Kenji Nishida , Kazuhiro Nakadai

In healthcare applications, there is a growing need to develop machine learning models that use data from a single source, such as that from a wrist wearable device, to monitor physical activities, assess health risks, and provide immediate…

Machine Learning · Computer Science 2024-05-28 Haoting Zhang , Donglin Zhan , Yunduan Lin , Jinghai He , Qing Zhu , Zuo-Jun Max Shen , Zeyu Zheng