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Human Activity Recognition (HAR) research has gained significant momentum due to recent technological advancements, artificial intelligence algorithms, the need for smart cities, and socioeconomic transformation. However, existing computer…

Machine Learning · Computer Science 2023-05-10 Md. Mohi Uddin Khan , Abdullah Bin Shams , Md. Mohsin Sarker Raihan

A person's movement or relative positioning can be effectively captured by different types of sensors and corresponding sensor output can be utilized in various manipulative techniques for the classification of different human activities.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Utsab Saha , Sawradip Saha , Tahmid Kabir , Shaikh Anowarul Fattah , Mohammad Saquib

Fitness movement recognition, a focused subdomain of human activity recognition (HAR), plays a vital role in health monitoring, rehabilitation, and personalized fitness training by enabling automated exercise classification from video data.…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Shanjid Hasan Nishat , Srabonti Deb , Mohiuddin Ahmed

Deep learning has proven to be an effective approach in the field of Human activity recognition (HAR), outperforming other architectures that require manual feature engineering. Despite recent advancements, challenges inherent to HAR data,…

Machine Learning · Computer Science 2023-07-18 Yiran Huang , Yexu Zhou , Till Riedel , Likun Fang , Michael Beigl

Wrist-worn smart devices are providing increased insights into human health, behaviour and performance through sophisticated analytics. However, battery life, device cost and sensor performance in the face of movement-related artefact…

Signal Processing · Electrical Eng. & Systems 2020-04-02 Eoin Brophy , Willie Muehlhausen , Alan F. Smeaton , Tomas E. Ward

Human Activity Recognition (HAR) using on-body devices identifies specific human actions in unconstrained environments. HAR is challenging due to the inter and intra-variance of human movements; moreover, annotated datasets from on-body…

Computer Vision and Pattern Recognition · Computer Science 2022-12-05 Shrutarv Awasthi , Fernando Moya Rueda , Gernot A. Fink

Human Activity Recognition (HAR) stands as a pivotal technique within pattern recognition, dedicated to deciphering human movements and actions utilizing one or multiple sensory inputs. Its significance extends across diverse applications,…

Human-Computer Interaction · Computer Science 2024-06-18 Farhad Nazari , Arian Shajari , Darius Nahavandi , Navid Mohajer

Human action recognition (HAR) in videos is a fundamental research topic in computer vision. It consists mainly in understanding actions performed by humans based on a sequence of visual observations. In recent years, HAR have witnessed…

Computer Vision and Pattern Recognition · Computer Science 2020-10-30 Soufiane Lamghari , Guillaume-Alexandre Bilodeau , Nicolas Saunier

Context-aware Human Activity Recognition (CHAR) is challenging due to the need to recognize the user's current activity from signals that vary significantly with contextual factors such as phone placements and the varied styles with which…

Machine Learning · Computer Science 2024-09-27 Wen Ge , Guanyi Mou , Emmanuel O. Agu , Kyumin Lee

Wearable-based Human Activity Recognition (HAR) is a key task in human-centric machine learning due to its fundamental understanding of human behaviours. Due to the dynamic nature of human behaviours, continual learning promises HAR systems…

Machine Learning · Computer Science 2024-01-05 Chi Ian Tang , Lorena Qendro , Dimitris Spathis , Fahim Kawsar , Akhil Mathur , Cecilia Mascolo

Cross-dataset Human Activity Recognition (HAR) suffers from limited model generalization, hindering its practical deployment. To address this critical challenge, inspired by the success of DoReMi in Large Language Models (LLMs), we…

Machine Learning · Computer Science 2025-03-19 Lulu Ban , Tao Zhu , Xiangqing Lu , Qi Qiu , Wenyong Han , Shuangjian Li , Liming Chen , Kevin I-Kai Wang , Mingxing Nie , Yaping Wan

This paper introduces AutoGCN, a generic Neural Architecture Search (NAS) algorithm for Human Activity Recognition (HAR) using Graph Convolution Networks (GCNs). HAR has gained attention due to advances in deep learning, increased data…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Felix Tempel , Inga Strümke , Espen Alexander F. Ihlen

Human activity recognition (HAR) is essential for effective Human-Robot Collaboration (HRC), enabling robots to interpret and respond to human actions. This study evaluates the ability of a vision-based tactile sensor to classify 15…

The field of sensor-based human activity recognition (HAR) mainly uses posture, motion and context data of Inertial Measurement Units (IMUs) to identify daily activities. Despite the advancements in learning-based methods, it is challenging…

Artificial Intelligence · Computer Science 2026-05-12 Ye Zhang , Longguang Wang , Qing Gao , Chaocan Xiang , Mohammed Bennamoun , Yulan Guo

We propose the use of self-supervised learning for human activity recognition with smartphone accelerometer data. Our proposed solution consists of two steps. First, the representations of unlabeled input signals are learned by training a…

Signal Processing · Electrical Eng. & Systems 2021-09-03 Setareh Rahimi Taghanaki , Michael Rainbow , Ali Etemad

Wearable sensor-based human activity recognition (HAR) has emerged as a principal research area and is utilized in a variety of applications. Recently, deep learning-based methods have achieved significant improvement in the HAR field with…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Sungho Suh , Vitor Fortes Rey , Paul Lukowicz

The use of supervised learning for Human Activity Recognition (HAR) on mobile devices leads to strong classification performances. Such an approach, however, requires large amounts of labeled data, both for the initial training of the…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Riccardo Presotto , Sannara Ek , Gabriele Civitarese , François Portet , Philippe Lalanda , Claudio Bettini

Background: Smartphones are now nearly ubiquitous; their numerous built-in sensors enable continuous measurement of activities of daily living, making them especially well-suited for health research. Researchers have proposed various human…

Human-Computer Interaction · Computer Science 2021-03-29 Marcin Straczkiewicz , Peter James , Jukka-Pekka Onnela

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

Deep-learning based computer vision models have proved themselves to be ground-breaking approaches to human activity recognition (HAR). However, most existing works are dedicated to improve the prediction accuracy through either creating…

Computer Vision and Pattern Recognition · Computer Science 2021-02-04 Mahsun Altın , Furkan Gürsoy , Lina Xu