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We propose a lightweight, and temporally and spatially aware user behaviour modelling technique for sensor-based authentication. Operating in the background, our data driven technique compares current behaviour with a user profile. If the…

Cryptography and Security · Computer Science 2014-10-29 Hilmi Gunes Kayacik , Mike Just , Lynne Baillie , David Aspinall , Nicholas Micallef

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

Inertial sensors are present in most mobile devices nowadays and such devices are used by people during most of their daily activities. In this paper, we present an approach for human activity recognition based on inertial sensors by…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Otávio A. B. Penatti , Milton F. S. Santos

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

A major barrier to the personalized Human Activity Recognition using wearable sensors is that the performance of the recognition model drops significantly upon adoption of the system by new users or changes in physical/ behavioral status of…

Computer Vision and Pattern Recognition · Computer Science 2018-01-26 Seyed Ali Rokni , Marjan Nourollahi , Hassan Ghasemzadeh

Smartphones have become quite pervasive in various aspects of our daily lives. They have become important links to a host of important data and applications, which if compromised, can lead to disastrous results. Due to this, today's…

Signal Processing · Electrical Eng. & Systems 2017-11-15 Thingom Bishal Singha , Rajsekhar Kumar Nath , A. V. Narsimhadhan

Traditional activity recognition systems work on the basis of training, taking a fixed set of sensors into account. In this article, we focus on the question how pattern recognition can leverage new information sources without any, or with…

Computer Vision and Pattern Recognition · Computer Science 2017-01-31 David Bannach , Martin Jänicke , Vitor F. Rey , Sven Tomforde , Bernhard Sick , Paul Lukowicz

The widespread use of smartphones gives rise to new security and privacy concerns. Smartphone thefts account for the largest percentage of thefts in recent crime statistics. Using a victim's smartphone, the attacker can launch impersonation…

Cryptography and Security · Computer Science 2017-03-10 Wei-Han Lee , Ruby Lee

Human activity recognition serves an important part in building continuous behavioral monitoring systems, which are deployable for visual surveillance, patient rehabilitation, gaming, and even personally inclined smart homes. This paper…

Computer Vision and Pattern Recognition · Computer Science 2020-06-02 Olasimbo Ayodeji Arigbabu

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…

Machine Learning · Computer Science 2023-07-25 Taoran Sheng , Manfred Huber

The passive body-area electrostatic field has recently been aspiringly explored for wearable motion sensing, harnessing its two thrilling characteristics: full-body motion sensitivity and environmental sensitivity, which potentially…

Systems and Control · Electrical Eng. & Systems 2025-01-14 Sizhen Bian , Vitor Fortes Rey , Siyu Yuan , Paul Lukowicz

Smartphone sensors can be extremely useful in providing information on the activities and behaviors of persons. Human activity recognition is increasingly used for games, medical, or surveillance. In this paper, we propose a…

Machine Learning · Computer Science 2026-02-03 David Craveiro , Hugo Silva

Using supervised machine learning approaches to recognize human activities from on-body wearable accelerometers generally requires a large amount of labelled data. When ground truth information is not available, too expensive, time…

Machine Learning · Statistics 2013-12-30 Dorra Trabelsi , Samer Mohammed , Faicel Chamroukhi , Latifa Oukhellou , Yacine Amirat

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

There is growing concern about how personal data are used when users grant applications direct access to the sensors of their mobile devices. In fact, high resolution temporal data generated by motion sensors reflect directly the activities…

Machine Learning · Computer Science 2018-06-21 Mohammad Malekzadeh , Richard G. Clegg , Andrea Cavallaro , Hamed Haddadi

With the increasing number of IoT devices, there is a growing demand for energy-free sensors. Human activity recognition holds immense value in numerous daily healthcare applications. However, the majority of current sensing modalities…

Signal Processing · Electrical Eng. & Systems 2023-08-11 Kaede Shintani , Hamada Rizk , Hirozumi Yamaguchi

Unobtrusive and smart recognition of human activities using smartphones inertial sensors is an interesting topic in the field of artificial intelligence acquired tremendous popularity among researchers, especially in recent years. A…

Machine Learning · Computer Science 2021-09-21 Meysam Vakili , Masoumeh Rezaei

Physical activity patterns can be informative about a patient's health status. Traditionally, activity data have been gathered using patient self-report. However, these subjective data can suffer from bias and are difficult to collect over…

Methodology · Statistics 2022-02-08 Emily Huang , Kebin Yan , Jukka-Pekka Onnela

Human Activity Recognition (HAR) enables context-aware user experiences where mobile apps can alter content and interactions depending on user activities. Hence, smartphones have become valuable for HAR as they allow large, and diversified…

Human-Computer Interaction · Computer Science 2023-01-18 Emma Bouton--Bessac , Lakmal Meegahapola , Daniel Gatica-Perez

Automated and accurate human activity recognition (HAR) using body-worn sensors enables practical and cost efficient remote monitoring of Activity of DailyLiving (ADL), which are shown to provide clinical insights across multiple…

Signal Processing · Electrical Eng. & Systems 2023-05-01 Maximilien Burq , Niranjan Sridhar