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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…

Machine Learning · Computer Science 2020-12-22 Alan Mazankiewicz , Klemens Böhm , Mario Bergés

Large Language Models (LLMs) have emerged as foundation models for IoT applications such as human activity recognition (HAR). However, directly applying high-frequency and multi-dimensional sensor data, such as eye-tracking data, leads to…

Human-Computer Interaction · Computer Science 2026-04-14 Jae Young Choi , Seon Gyeom Kim , Hyungjun Yoon , Taeckyung Lee , Donggun Lee , Jaeryung Chung , Jihyung Kil , Ryan Rossi , Sung-Ju Lee , Tak Yeon Lee

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…

Machine Learning · Computer Science 2021-03-31 Jakaria Rabbi , Md. Tahmid Hasan Fuad , Md. Abdul Awal

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…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Lala Shakti Swarup Ray , Mengxi Liu , Deepika Gurung , Bo Zhou , Sungho Suh , Paul Lukowicz

Wearable sensor devices, which offer the advantage of recording daily objects used by a person while performing an activity, enable the feasibility of unsupervised Human Activity Recognition (HAR). Unfortunately, previous unsupervised…

Human-Computer Interaction · Computer Science 2023-06-12 Qingxin Xia , Takuya Maekawa , Takahiro Hara

In human activity recognition (HAR), the availability of substantial ground truth is necessary for training efficient models. However, acquiring ground pressure data through physical sensors itself can be cost-prohibitive, time-consuming.…

Machine Learning · Computer Science 2024-02-23 Lala Shakti Swarup Ray , Bo Zhou , Sungho Suh , Lars Krupp , Vitor Fortes Rey , Paul Lukowicz

Human Action Recognition (HAR), one of the most important tasks in computer vision, has developed rapidly in the past decade and has a wide range of applications in health monitoring, intelligent surveillance, virtual reality, human…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Zhou Shuchang

The proliferation of deep learning has significantly advanced various fields, yet Human Activity Recognition (HAR) has not fully capitalized on these developments, primarily due to the scarcity of labeled datasets. Despite the integration…

Signal Processing · Electrical Eng. & Systems 2024-06-26 Parham Zolfaghari , Vitor Fortes Rey , Lala Ray , Hyun Kim , Sungho Suh , Paul Lukowicz

Human Activity Recognition (HAR) systems aim to understand human behaviour and assign a label to each action, attracting significant attention in computer vision due to their wide range of applications. HAR can leverage various data…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Jungpil Shin , Najmul Hassan , Abu Saleh Musa Miah1 , Satoshi Nishimura

Human Activity Recognition (HAR) is an attractive topic to perceive human behavior and supplying assistive services. Besides the classical inertial unit and vision-based HAR methods, new sensing technologies, such as ultrasound and…

Human-Computer Interaction · Computer Science 2024-07-08 Pixi Kang , Julian Moosmann , Sizhen Bian , Michele Magno

Advanced wearable sensor devices have enabled the recording of vast amounts of movement data from individuals regarding their physical activities. This data offers valuable insights that enhance our understanding of how physical activities…

Software Engineering · Computer Science 2024-08-20 Thomas Peroutka , Ilir Murturi , Praveen Kumar Donta , Schahram Dustdar

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

Creating and labelling datasets of videos for use in training Human Activity Recognition models is an arduous task. In this paper, we approach this by using 3D rendering tools to generate a synthetic dataset of videos, and show that a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-23 Ollie Matthews , Koki Ryu , Tarun Srivastava

Traditional human activity recognition (HAR) based on time series adopts sliding window analysis method. This method faces the multi-class window problem which mistakenly labels different classes of sampling points within a window as a…

Machine Learning · Computer Science 2018-09-24 Yong Zhang , Yu Zhang , Zhao Zhang , Jie Bao , Yunpeng Song

This paper addresses the problem of generating 3D interactive human motion from text. Given a textual description depicting the actions of different body parts in contact with static objects, we synthesize sequences of 3D body poses that…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Sihan Ma , Qiong Cao , Jing Zhang , Dacheng Tao

IMU-based Human Activity Recognition (HAR) has enabled a wide range of ubiquitous computing applications, yet its dominant clip classification paradigm cannot capture the rich temporal structure of real-world behaviors. This motivates a…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Pei Li , Jiaxi Yin , Lei Ouyang , Shihan Pan , Ge Wang , Han Ding , Fei Wang

Many application areas ranging from serious games for health to learning by demonstration in robotics, could benefit from large body movement datasets extracted from textual instructions accompanied by images. The interpretation of…

Human-Computer Interaction · Computer Science 2020-06-09 Himangshu Sarma , Robert Porzel , Jan Smeddinck , Rainer Malaka

Recent research into human action recognition (HAR) has focused predominantly on skeletal action recognition and video-based methods. With the increasing availability of consumer-grade depth sensors and Lidar instruments, there is a growing…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 James Dickens

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…

Signal Processing · Electrical Eng. & Systems 2025-01-06 Harish Haresamudram , Chi Ian Tang , Sungho Suh , Paul Lukowicz , Thomas Ploetz

The problem of automatic identification of physical activities performed by human subjects is referred to as Human Activity Recognition (HAR). There exist several techniques to measure motion characteristics during these physical…

Machine Learning · Computer Science 2019-06-06 Antonio Bevilacqua , Kyle MacDonald , Aamina Rangarej , Venessa Widjaya , Brian Caulfield , Tahar Kechadi