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Behavioral biometrics are key components in the landscape of research in continuous and active user authentication. However, there is a lack of large datasets with multiple activities, such as typing, gait and swipe performed by the same…

Human-Computer Interaction · Computer Science 2019-12-20 Amith K. Belman , Li Wang , S. S. Iyengar , Pawel Sniatala , Robert Wright , Robert Dora , Jacob Baldwin , Zhanpeng Jin , Vir V. Phoha

We propose a Bayesian model for extracting sleep patterns from smartphone events. Our method is able to identify individuals' daily sleep periods and their evolution over time, and provides an estimation of the probability of sleep and wake…

Computers and Society · Computer Science 2017-02-08 Andrea Cuttone , Per Bækgaard , Vedran Sekara , Håkan Jonsson , Jakob Eg Larsen , Sune Lehmann

Oral presentation skills are a critical component of higher education, yet comprehensive datasets capturing real-world student performance across multiple modalities remain scarce. To address this gap, we present SOPHIAS (Student Oral…

Human-Computer Interaction · Computer Science 2026-01-13 Alvaro Becerra , Ruth Cobos , Roberto Daza

Information processing tasks involve complex cognitive mechanisms that are shaped by various factors, including individual goals, prior experience, and system environments. Understanding such behaviors requires a sophisticated and…

Human-Computer Interaction · Computer Science 2025-07-24 Kaixin Ji , Danula Hettiachchi , Falk Scholer , Flora D. Salim , Damiano Spina

Understanding animals' behaviors is significant for a wide range of applications. However, existing animal behavior datasets have limitations in multiple aspects, including limited numbers of animal classes, data samples and provided tasks,…

Computer Vision and Pattern Recognition · Computer Science 2022-06-06 Xun Long Ng , Kian Eng Ong , Qichen Zheng , Yun Ni , Si Yong Yeo , Jun Liu

It's important to monitor road issues such as bumps and potholes to enhance safety and improve road conditions. Smartphones are equipped with various built-in sensors that offer a cost-effective and straightforward way to assess road…

Understanding food consumption patterns and contexts using mobile sensing is fundamental to build mobile health applications that require minimal user interaction to generate mobile food diaries. Many available mobile food diaries, both…

Computers and Society · Computer Science 2020-12-01 Lakmal Meegahapola , Salvador Ruiz-Correa , Daniel Gatica-Perez

Due to the edge's position between the cloud and the users, and the recent surge of deep neural network (DNN) applications, edge computing brings about uncertainties that must be understood separately. Particularly, the edge users' locally…

Information Theory · Computer Science 2020-06-02 Sejin Seo , Sang Won Choi , Sujin Kook , Seong-Lyun Kim , Seung-Woo Ko

Multimedia anomaly datasets play a crucial role in automated surveillance. They have a wide range of applications expanding from outlier objects/ situation detection to the detection of life-threatening events. For more than 1.5 decades,…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Pratibha Kumari , Anterpreet Kaur Bedi , Mukesh Saini

We report from a study performed in ten European countries, where we asked about attitudes and behaviour towards data sharing behaviour. We looked into the differences between members of age groups. We find that there are more similarities…

Computers and Society · Computer Science 2018-10-12 Wolfgang Leister , Ingvar Tjøstheim

Organizations with a large user base, such as Samsung and Google, can potentially benefit from collecting and mining users' data. However, doing so raises privacy concerns, and risks accidental privacy breaches with serious consequences.…

Databases · Computer Science 2016-06-17 Thông T. Nguyên , Xiaokui Xiao , Yin Yang , Siu Cheung Hui , Hyejin Shin , Junbum Shin

As data-driven systems are increasingly deployed at scale, ethical concerns have arisen around unfair and discriminatory outcomes for historically marginalized groups that are underrepresented in training data. In response, work around AI…

Human-Computer Interaction · Computer Science 2022-09-21 Rie Kamikubo , Lining Wang , Crystal Marte , Amnah Mahmood , Hernisa Kacorri

Mobile sensing applications usually require time-series inputs from sensors. Some applications, such as tracking, can use sensed acceleration and rate of rotation to calculate displacement based on physical system models. Other…

Machine Learning · Computer Science 2017-07-04 Shuochao Yao , Shaohan Hu , Yiran Zhao , Aston Zhang , Tarek Abdelzaher

The adverse effects of loneliness on both physical and mental well-being are profound. Although previous research has utilized mobile sensing techniques to detect mental health issues, few studies have utilized state-of-the-art wearable…

Previous work has investigated the particularities of security practices within specific user communities defined based on country of origin, age, prior tech abuse, and economic status. Their results highlight that current security…

Cryptography and Security · Computer Science 2023-01-19 Savino Dambra , Leyla Bilge , Platon Kotzias , Yun Shen , Juan Caballero

Monitoring and understanding affective states are important aspects of healthy functioning and treatment of mood-based disorders. Recent advancements of ubiquitous wearable technologies have increased the reliability of such tools in…

Human-Computer Interaction · Computer Science 2022-01-28 Salar Jafarlou , Jocelyn Lai , Zahra Mousavi , Sina Labbaf , Ramesh Jain , Nikil Dutt , Jessica Borelli , Amir Rahmani

Computer vision has a great potential to help our daily lives by searching for lost keys, watering flowers or reminding us to take a pill. To succeed with such tasks, computer vision methods need to be trained from real and diverse examples…

Computer Vision and Pattern Recognition · Computer Science 2016-07-28 Gunnar A. Sigurdsson , Gül Varol , Xiaolong Wang , Ali Farhadi , Ivan Laptev , Abhinav Gupta

We collected a large dataset consisting of 850 unique participants. For every participant we recorded two 30 second uncompressed videos, synchronized PPG waveforms and a single blood pressure measurement. Gender, age and skin color were…

Computer Vision and Pattern Recognition · Computer Science 2025-05-05 Pieter-Jan Toye

Consumer-grade smartwatches offer a new personalized health monitoring option for general consumers globally as cardiovascular diseases continue to prevail as the leading cause of global mortality. The development and validation of reliable…

Human-Computer Interaction · Computer Science 2025-12-04 Jathushan Kaetheeswaran , Boyi Ma , Ali Abedi , Milad Lankarany , Shehroz Khan

Active authentication is the problem of continuously verifying the identity of a person based on behavioral aspects of their interaction with a computing device. In this study, we collect and analyze behavioral biometrics data from…

Cryptography and Security · Computer Science 2016-11-15 Lex Fridman , Steven Weber , Rachel Greenstadt , Moshe Kam