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The primary objective of human activity recognition (HAR) is to infer ongoing human actions from sensor data, a task that finds broad applications in health monitoring, safety protection, and sports analysis. Despite proliferating research,…

计算机视觉与模式识别 · 计算机科学 2025-07-14 Hang Xiao , Ying Yu , Jiarui Li , Zhifan Yang , Haotian Tang , Hanyu Liu , Chao Li

Contrastive learning has been applied to Human Activity Recognition (HAR) based on sensor data owing to its ability to achieve performance comparable to supervised learning with a large amount of unlabeled data and a small amount of labeled…

计算机视觉与模式识别 · 计算机科学 2022-03-24 Jinqiang Wang , Tao Zhu , Liming Chen , Huansheng Ning , Yaping Wan

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…

计算机视觉与模式识别 · 计算机科学 2021-02-04 Mahsun Altın , Furkan Gürsoy , Lina Xu

Artificial neural networks have been successfully applied to a variety of machine learning tasks, including image recognition, semantic segmentation, and machine translation. However, few studies fully investigated ensembles of artificial…

机器学习 · 统计学 2017-04-07 Cheng Ju , Aurélien Bibaut , Mark J. van der Laan

The main streams of human activity recognition (HAR) algorithms are developed based on RGB cameras which are suffered from illumination, fast motion, privacy-preserving, and large energy consumption. Meanwhile, the biologically inspired…

计算机视觉与模式识别 · 计算机科学 2022-11-18 Xiao Wang , Zongzhen Wu , Bo Jiang , Zhimin Bao , Lin Zhu , Guoqi Li , Yaowei Wang , Yonghong Tian

Human Activity Recognition (HAR) involves the automatic identification of user activities and has gained significant research interest due to its broad applicability. Most HAR systems rely on supervised learning, which necessitates large,…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Xian Gao , Haoyue Zhang , Zongyun Zhang , Jiacheng Ruan , Ting Liu , Yuzhuo Fu

Limited access to medical infrastructure forces elderly and vulnerable patients to rely on home-based care, often leading to neglect and poor adherence to therapeutic exercises such as yoga or physiotherapy. To address this gap, we propose…

机器学习 · 计算机科学 2026-02-02 Ramakant Kumar , Pravin Kumar

Human Activity Recognition (HAR) with wearable sensors is essential for applications in healthcare, fitness, and human-computer interaction. Bio-impedance sensing offers unique advantages for fine-grained motion capture but remains…

计算机视觉与模式识别 · 计算机科学 2025-07-10 Lala Shakti Swarup Ray , Mengxi Liu , Deepika Gurung , Bo Zhou , Sungho Suh , Paul Lukowicz

Human Activity Recognition (HAR) simply refers to the capacity of a machine to perceive human actions. HAR is a prominent application of advanced Machine Learning and Artificial Intelligence techniques that utilize computer vision to…

计算机视觉与模式识别 · 计算机科学 2021-01-19 Niloy Sikder , Md. Sanaullah Chowdhury , Abu Shamim Mohammad Arif , Abdullah-Al Nahid

Our ability to exploit low-cost wearable sensing modalities for critical human behaviour and activity monitoring applications in health and wellness is reliant on supervised learning regimes; here, deep learning paradigms have proven…

信号处理 · 电气工程与系统科学 2020-08-20 Alireza Abedin , Farbod Motlagh , Qinfeng Shi , Seyed Hamid Rezatofighi , Damith Chinthana Ranasinghe

Human activity recognition (HAR) has become a popular topic in research because of its wide application. With the development of deep learning, new ideas have appeared to address HAR problems. Here, a deep network architecture using…

计算机视觉与模式识别 · 计算机科学 2017-09-08 Yu Zhao , Rennong Yang , Guillaume Chevalier , Maoguo Gong

Human Activity Recognition (HAR) has become one of the leading research topics of the last decade. As sensing technologies have matured and their economic costs have declined, a host of novel applications, e.g., in healthcare, industry,…

机器学习 · 计算机科学 2023-07-13 Florenc Demrozi , Cristian Turetta , Fadi Al Machot , Graziano Pravadelli , Philipp H. Kindt

We propose an ensemble method to improve the generalization performance of trading strategies trained by deep reinforcement learning algorithms in a highly stochastic environment of intraday cryptocurrency portfolio trading. We adopt a…

交易与市场微观结构 · 定量金融 2023-09-06 Shuyang Wang , Diego Klabjan

The combination of increased life expectancy and falling birth rates is resulting in an aging population. Wearable Sensor-based Human Activity Recognition (WSHAR) emerges as a promising assistive technology to support the daily lives of…

信号处理 · 电气工程与系统科学 2024-04-25 Jianyuan Ni , Hao Tang , Syed Tousiful Haque , Yan Yan , Anne H. H. Ngu

Human Activity Recognition (HAR) has shown remarkable effectiveness in various applications, such as smart healthcare and intelligent manufacturing. However, a major challenge faced by HAR is the distribution shift across different sensor…

计算机视觉与模式识别 · 计算机科学 2026-05-22 Zhiqing Hong , Zelong Li , Xiubin Fan , Guang Yang , Baoshen Guo , Haotian Wang , Tian He , Desheng Zhang

Human Activity Recognition (HAR) is one of the fundamental building blocks of human assistive devices like orthoses and exoskeletons. There are different approaches to HAR depending on the application. Numerous studies have been focused on…

人机交互 · 计算机科学 2024-03-08 Farhad Nazari , Darius Nahavandi , Navid Mohajer , Abbas Khosravi

Despite advances in practical and multimodal fine-grained Human Activity Recognition (HAR), a system that runs entirely on smartwatches in unconstrained environments remains elusive. We present WatchHAR, an audio and inertial-based HAR…

计算机视觉与模式识别 · 计算机科学 2025-09-08 Taeyoung Yeon , Vasco Xu , Henry Hoffmann , Karan Ahuja

We present a noise-aware, sensor-specific ensemble approach for robust human activity recognition on the 2nd WEAR Dataset Challenge. Our method leverages the PatchTST transformer architecture, training four independent models-one per…

机器学习 · 计算机科学 2025-10-27 Pavankumar Chandankar , Robin Burchard

User dependence remains one of the most difficult general problems in Human Activity Recognition (HAR), in particular when using wearable sensors. This is due to the huge variability of the way different people execute even the simplest…

信号处理 · 电气工程与系统科学 2021-10-26 Sungho Suh , Vitor Fortes Rey , Paul Lukowicz

This short paper aims to discuss the effectiveness and performance of classical machine learning approaches for Human Activity Recognition (HAR). It proposes two important models - Extra Trees and Stacked Classifier with the emphasize on…

机器学习 · 计算机科学 2020-09-23 Ambareesh Ravi