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The Internet of Things (IoT) is increasingly empowering people with an interconnected world of physical objects ranging from smart buildings to portable smart devices such as wearables. With recent advances in mobile sensing, wearables have…

Cryptography and Security · Computer Science 2019-07-16 Sudip Vhaduri , Christian Poellabauer

Modern smartphones contain motion sensors, such as accelerometers and gyroscopes. These sensors have many useful applications; however, they can also be used to uniquely identify a phone by measuring anomalies in the signals, which are a…

Cryptography and Security · Computer Science 2015-03-09 Anupam Das , Nikita Borisov , Matthew Caesar

Biometric systems based on Machine learning and Deep learning are being extensively used as authentication mechanisms in resource-constrained environments like smartphones and other small computing devices. These AI-powered facial…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Mohit Raghavendra , Pravan Omprakash , B R Mukesh , Sowmya Kamath

The recent decade has witnessed phenomenal growth in communication technology. Development of user-friendly software platforms, such as Facebook, WhatsApp etc. have facilitated ease of communication and thereby people have started freely…

Cryptography and Security · Computer Science 2020-03-03 Ayush Bahuguna , Ashutosh Bhatia , Kamlesh Tiwari , Deepak Vishwakarma

Accurately predicting smartphone app usage is challenging due to the sparsity and irregularity of user behavior, especially under cold-start and low-activity conditions. Existing approaches mostly rely on static or attention-only…

Machine Learning · Computer Science 2025-09-30 Longlong Li , Cunquan Qu , Guanghui Wang

In this study, a novel method to obtain user-dependent human activity recognition models unobtrusively by exploiting the sensors of a smartphone is presented. The recognition consists of two models: sensor fusion-based user-independent…

Machine Learning · Computer Science 2019-05-30 Pekka Siirtola , Heli Koskimäki , Juha Röning

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

The amount of secure data being stored on mobile devices has grown immensely in recent years. However, the security measures protecting this data have stayed static, with few improvements being done to the vulnerabilities of current…

Cryptography and Security · Computer Science 2022-05-18 Laura Pryor , Jacob Mallet , Rushit Dave , Naeem Seliya , Mounika Vanamala , Evelyn Sowells Boone

There are around a hundred installed apps on an average smartphone. The high number of apps and the limited number of app icons that can be displayed on the device's screen requires a new paradigm to address their visibility to the user. In…

Machine Learning · Computer Science 2016-01-26 Joseph Keshet , Adam Kariv , Arnon Dagan , Dvir Volk , Joey Simhon

The Internet of Things (IoT) is increasingly empowering people with an interconnected world of physical objects ranging from smart buildings to portable smart devices such as wearables. With the recent advances in mobile sensing, wearables…

Cryptography and Security · Computer Science 2018-11-20 Sudip Vhaduri , Christian Poellabauer

As nowadays most web application requests originate from mobile devices, authentication of mobile users is essential in terms of security considerations. To this end, recent approaches rely on machine learning techniques to analyze various…

Cryptography and Security · Computer Science 2024-10-28 David Monschein , Oliver P. Waldhorst

In this paper we evaluate mobile active authentication based on an ensemble of biometrics and behavior-based profiling signals. We consider seven different data channels and their combination. Touch dynamics (touch gestures and…

Cryptography and Security · Computer Science 2019-01-30 Alejandro Acien , Aythami Morales , Ruben Vera-Rodriguez , Julian Fierrez

Visual attention is highly fragmented during mobile interactions, but the erratic nature of attention shifts currently limits attentive user interfaces to adapting after the fact, i.e. after shifts have already happened. We instead study…

Human-Computer Interaction · Computer Science 2018-07-26 Julian Steil , Philipp Müller , Yusuke Sugano , Andreas Bulling

With the increased popularity of smart phones, there is a greater need to have a robust authentication mechanism that handles various security threats and privacy leakages effectively. This paper studies continuous authentication for touch…

Cryptography and Security · Computer Science 2017-12-25 Aditi Roy , Tzipora Halevi , Nasir Memon

The aim of this research paper is to look into the use of continuous authentication with mobile touch dynamics, using three different algorithms: Neural Network, Extreme Gradient Boosting, and Support Vector Machine. Mobile devices are…

Cryptography and Security · Computer Science 2023-05-17 Brendan Pelto , Mounika Vanamala , Rushit Dave

Smartphones and tablets have become ubiquitous in our daily lives. Smartphones, in particular, have become more than personal assistants. These devices have provided new avenues for consumers to play, work, and socialize whenever and…

Cryptography and Security · Computer Science 2019-11-12 Abdulaziz Alzubaidi , Jugal Kalita

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

In low-resource computing contexts, such as smartphones and other tiny devices, Both deep learning and machine learning are being used in a lot of identification systems. as authentication techniques. The transparent, contactless, and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Pangoth Santhosh Kumar , Garika Akshay

This study provides evidence that personality can be reliably predicted from activity data collected through mobile phone sensors. Employing a set of well informed indicators calculable from accelerometer records and movement patterns, we…

Signal Processing · Electrical Eng. & Systems 2024-01-23 Wun Yung Shaney Sze , Maryglen Pearl Herrero , Roger Garriga

Smartphones store a significant amount of personal and private information, and are playing an increasingly important role in people's lives. It is important for authentication techniques to be more resistant against two known attacks…

Cryptography and Security · Computer Science 2019-08-27 Matthew Lakier , Dimcho Karakashev , Yixin Wang , Ian Goldberg