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Smaller machine learning models, with less complex architectures and sensor inputs, can benefit wearable sensor-based human activity recognition (HAR) systems in many ways, from complexity and cost to battery life. In the specific case of…

Machine Learning · Computer Science 2024-08-28 Hymalai Bello , Daniel Geißler , Sungho Suh , Bo Zhou , Paul Lukowicz

Wearable sensors in Internet of Things (IoT) ecosystems increasingly support applications such as remote health monitoring, elderly care, and smart home automation, all of which rely on robust human activity recognition (HAR). Continual…

Learning at the edge is a challenging task from several perspectives, since data must be collected by end devices (e.g. sensors), possibly pre-processed (e.g. data compression), and finally processed remotely to output the result of…

Signal Processing · Electrical Eng. & Systems 2022-04-26 Mattia Merluzzi , Claudio Battiloro , Paolo Di Lorenzo , Emilio Calvanese Strinati

Inertial sensor-based human activity recognition (HAR) is the base of many human-centered mobile applications. Deep learning-based fine-grained HAR models enable accurate classification in various complex application scenarios.…

Machine Learning · Computer Science 2024-09-16 Runze Chen , Haiyong Luo , Fang Zhao , Xuechun Meng , Zhiqing Xie , Yida Zhu

Wi-Fi devices can effectively be used as passive radar systems that sense what happens in the surroundings and can even discern human activity. We propose, for the first time, a principled architecture which employs Variational…

Signal Processing · Electrical Eng. & Systems 2024-07-09 Marco Cominelli , Francesco Gringoli , Lance M. Kaplan , Mani B. Srivastava , Federico Cerutti

In the realm of ubiquitous computing, Human Activity Recognition (HAR) is vital for the automation and intelligent identification of human actions through data from diverse sensors. However, traditional machine learning approaches by…

Machine Learning · Computer Science 2024-07-18 Ensieh Khazaei , Alireza Esmaeilzehi , Bilal Taha , Dimitrios Hatzinakos

Deep neural network is an effective choice to automatically recognize human actions utilizing data from various wearable sensors. These networks automate the process of feature extraction relying completely on data. However, various noises…

Signal Processing · Electrical Eng. & Systems 2021-01-05 Tanvir Mahmud , A. Q. M. Sazzad Sayyed , Shaikh Anowarul Fattah , Sun-Yuan Kung

Advances in embedded systems have enabled integration of many lightweight sensory devices within our daily life. In particular, this trend has given rise to continuous expansion of wearable sensors in a broad range of applications from…

Machine Learning · Computer Science 2019-07-09 Mahdi Pedram , Seyed Ali Rokni , Marjan Nourollahi , Houman Homayoun , Hassan Ghasemzadeh

With advancements in computer vision and deep learning, video-based human action recognition (HAR) has become practical. However, due to the complexity of the computation pipeline, running HAR on live video streams incurs excessive delays…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Ruiqi Wang , Zichen Wang , Peiqi Gao , Mingzhen Li , Jaehwan Jeong , Yihang Xu , Yejin Lee , Carolyn M. Baum , Lisa Tabor Connor , Chenyang Lu

Wireless Sensor Networks (WSN) are the backbone of essential monitoring applications, but their deployment in unfavourable conditions increases the risk to data integrity and system reliability. Traditional fault detection methods often…

Networking and Internet Architecture · Computer Science 2026-05-06 Nguyen Tri Nghia , Nguyen Van Son , Nguyen Thi Hanh

Edge machine learning can deliver low-latency and private artificial intelligent (AI) services for mobile devices by leveraging computation and storage resources at the network edge. This paper presents an energy-efficient edge processing…

Information Theory · Computer Science 2020-03-03 Kai Yang , Yuanming Shi , Wei Yu , Zhi Ding

This paper introduces Smooth-Distill, a novel self-distillation framework designed to simultaneously perform human activity recognition (HAR) and sensor placement detection using wearable sensor data. The proposed approach utilizes a…

Machine Learning · Computer Science 2025-07-02 Hoang-Dieu Vu , Duc-Nghia Tran , Quang-Tu Pham , Hieu H. Pham , Nicolas Vuillerme , Duc-Tan Tran

As a critical component of Wearable AI, IMU-based Human Activity Recognition (HAR) has attracted increasing attention from both academia and industry in recent years. Although HAR performance has improved considerably in specific scenarios,…

Signal Processing · Electrical Eng. & Systems 2025-08-19 Yize Cai , Baoshen Guo , Flora Salim , Zhiqing Hong

Human Activity Recognition (HAR) is an ongoing research topic. It has applications in medical support, sports, fitness, social networking, human-computer interfaces, senior care, entertainment, surveillance, and the list goes on.…

Human-Computer Interaction · Computer Science 2021-11-11 Hamza Ali Imran , Saad Wazir , Usman Iftikhar , Usama Latif

In this work, we propose an open-source scalable end-to-end RTL framework FieldHAR, for complex human activity recognition (HAR) from heterogeneous sensors using artificial neural networks (ANN) optimized for FPGA or ASIC integration.…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Mengxi Liu , Bo Zhou , Zimin Zhao , Hyeonseok Hong , Hyun Kim , Sungho Suh , Vitor Fortes Rey , Paul Lukowicz

Cooperative energy recycling (CER) offers a new way to boost energy utilization in wireless-powered multi-access edge computing (MEC) networks, yet its integration with computation-communication co-design remains underexplored. This paper…

Information Theory · Computer Science 2025-11-05 Haohao Qin , Bowen Gu , Xianhua Yu , Hao Xie , Yongjun Xu , Qihao Li , Liejun Wang

Human Activity Recognition~(HAR) is the classification of human movement, captured using one or more sensors either as wearables or embedded in the environment~(e.g. depth cameras, pressure mats). State-of-the-art methods of HAR rely on…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Anjana Wijekoon , Nirmalie Wiratunga

Human activity recognition (HAR) is a classification task that aims to classify human activities or predict human behavior by means of features extracted from sensors data. Typical HAR systems use wearable sensors and/or handheld and mobile…

Sensor-based human activity recognition (HAR) has been an active research area, owing to its applications in smart environments, assisted living, fitness, healthcare, etc. Recently, deep learning based end-to-end training has resulted in…

Machine Learning · Computer Science 2024-01-19 Sourish Gunesh Dhekane , Thomas Ploetz

The rise of deep learning has greatly advanced human behavior monitoring using wearable sensors, particularly human activity recognition (HAR). While deep models have been widely studied, most assume stationary data distributions - an…