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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.…

人机交互 · 计算机科学 2021-11-11 Hamza Ali Imran , Saad Wazir , Usman Iftikhar , Usama Latif

Human Activity Recognition (HAR) from devices like smartphone accelerometers is a fundamental problem in ubiquitous computing. Machine learning based recognition models often perform poorly when applied to new users that were not part of…

机器学习 · 计算机科学 2020-12-22 Alan Mazankiewicz , Klemens Böhm , Mario Bergés

Processing sequential multi-sensor data becomes important in many tasks due to the dramatic increase in the availability of sensors that can acquire sequential data over time. Human Activity Recognition (HAR) is one of the fields which are…

机器学习 · 计算机科学 2020-11-24 Zeyd Boukhers , Danniene Wete , Steffen Staab

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…

计算机视觉与模式识别 · 计算机科学 2021-06-30 Chenglin Li , Carrie Lu Tong , Di Niu , Bei Jiang , Xiao Zuo , Lei Cheng , Jian Xiong , Jianming Yang

Deep Neural Networks trained in a fully supervised fashion are the dominant technology in perception-based autonomous driving systems. While collecting large amounts of unlabeled data is already a major undertaking, only a subset of it can…

计算机视觉与模式识别 · 计算机科学 2020-04-10 Elmar Haussmann , Michele Fenzi , Kashyap Chitta , Jan Ivanecky , Hanson Xu , Donna Roy , Akshita Mittel , Nicolas Koumchatzky , Clement Farabet , Jose M. Alvarez

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…

The vast proliferation of sensor devices and Internet of Things enables the applications of sensor-based activity recognition. However, there exist substantial challenges that could influence the performance of the recognition system in…

人机交互 · 计算机科学 2021-01-25 Kaixuan Chen , Dalin Zhang , Lina Yao , Bin Guo , Zhiwen Yu , Yunhao Liu

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…

机器学习 · 计算机科学 2019-05-16 H. D. Nguyen , K. P. Tran , X. Zeng , L. Koehl , G. Tartare

While deep learning (DL) is data-hungry and usually relies on extensive labeled data to deliver good performance, Active Learning (AL) reduces labeling costs by selecting a small proportion of samples from unlabeled data for labeling and…

机器学习 · 计算机科学 2022-07-20 Xueying Zhan , Qingzhong Wang , Kuan-hao Huang , Haoyi Xiong , Dejing Dou , Antoni B. Chan

In the many years since the inception of wearable sensor-based Human Activity Recognition (HAR), a wide variety of methods have been introduced and evaluated for their ability to recognize activities. Substantial gains have been made since…

信号处理 · 电气工程与系统科学 2025-01-06 Harish Haresamudram , Chi Ian Tang , Sungho Suh , Paul Lukowicz , Thomas Ploetz

Despite the vast literature on Human Activity Recognition (HAR) with wearable inertial sensor data, it is perhaps surprising that there are few studies investigating semisupervised learning for HAR, particularly in a challenging scenario…

Human activity recognition (HAR) is an important research field in ubiquitous computing where the acquisition of large-scale labeled sensor data is tedious, labor-intensive and time consuming. State-of-the-art unsupervised remedies…

机器学习 · 计算机科学 2021-10-13 Alireza Abedin , Hamid Rezatofighi , Damith C. Ranasinghe

With the rapid development of the internet of things (IoT) and artificial intelligence (AI) technologies, human activity recognition (HAR) has been applied in a variety of domains such as security and surveillance, human-robot interaction,…

人机交互 · 计算机科学 2023-01-19 Rex Liu , Albara Ah Ramli , Huanle Zhang , Erik Henricson , Xin Liu

Human activity recognition (HAR) is one of the core research themes in ubiquitous and wearable computing. With the shift to deep learning (DL) based analysis approaches, it has become possible to extract high-level features and perform…

机器学习 · 计算机科学 2023-05-24 Shuai Shao , Yu Guan , Bing Zhai , Paolo Missier , Thomas Ploetz

Human activity recognition (HAR) is a time series classification task that focuses on identifying the motion patterns from human sensor readings. Adequate data is essential but a major bottleneck for training a generalizable HAR model,…

计算机视觉与模式识别 · 计算机科学 2023-06-12 Xin Qin , Jindong Wang , Shuo Ma , Wang Lu , Yongchun Zhu , Xing Xie , Yiqiang Chen

Unsupervised user adaptation aligns the feature distributions of the data from training users and the new user, so a well-trained wearable human activity recognition (WHAR) model can be well adapted to the new user. With the development of…

信号处理 · 电气工程与系统科学 2022-04-28 Ling Chen , Yi Zhang , Shenghuan Miao , Sirou Zhu , Rong Hu , Liangying Peng , Mingqi Lv

Low-resolution infrared-based human activity recognition (HAR) attracted enormous interests due to its low-cost and private. In this paper, a novel semi-supervised crossdomain neural network (SCDNN) based on 8 $\times$ 8 low-resolution…

信号处理 · 电气工程与系统科学 2024-03-06 Cunyi Yin , Xiren Miao , Jing Chen , Hao Jiang , Deying Chen , Yixuan Tong , Shaocong Zheng

The embedded sensors in widely used smartphones and other wearable devices make the data of human activities more accessible. However, recognizing different human activities from the wearable sensor data remains a challenging research…

机器学习 · 计算机科学 2023-07-25 Taoran Sheng , Manfred Huber

Human Activity Recognition (HAR) is considered a valuable research topic in the last few decades. Different types of machine learning models are used for this purpose, and this is a part of analyzing human behavior through machines. It is…

机器学习 · 计算机科学 2021-03-31 Jakaria Rabbi , Md. Tahmid Hasan Fuad , Md. Abdul Awal

Continual learning, also known as lifelong learning, is an emerging research topic that has been attracting increasing interest in the field of machine learning. With human activity recognition (HAR) playing a key role in enabling numerous…

机器学习 · 计算机科学 2022-11-18 Rebecca Adaimi , Edison Thomaz