Hijacked Smart Devices - Methodical Foundations for Autonomous Theft Awareness based on Activity Recognition and Novelty Detection

Martin Jänicke, Viktor Schmidt, Bernhard Sick, Sven Tomforde, Paul Lukowicz

2018

Abstract

Personal devices such as smart phones are increasingly utilised in everyday life. Frequently, Activity Recognition is performed on these devices to estimate the current user status and trigger automated actions according to the user's needs. In this article, we focus on improving the self-awareness of such systems in terms of detecting theft: We equip devices with the capabilities to model their own user and to, e.g., alarm the legal user if an unexpected other person is carrying the device. We gathered 24hours of data in a case study with 14 persons using a Nokia N97 and trained an activity recognition system. Based on it, we developed and investigated an autonomous novelty detection system that continuously checks if the observed user behavior corresponds to the initial model, and that gives an alarm if not. Our evaluations show that the presented method is highly successful with a successful theft detection rate of over 85\% for the trained set of persons. Comparison experiments with state of the art techniques support the strong practicality of our approach.

Paper Citation

in Harvard Style

Jänicke M., Schmidt V., Sick B., Tomforde S. and Lukowicz P. (2018). Hijacked Smart Devices - Methodical Foundations for Autonomous Theft Awareness based on Activity Recognition and Novelty Detection.In Proceedings of the 10th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART, ISBN 978-989-758-275-2, pages 131-142. DOI: 10.5220/0006594901310142

in Bibtex Style

@conference{icaart18,
author={Martin Jänicke and Viktor Schmidt and Bernhard Sick and Sven Tomforde and Paul Lukowicz},
title={Hijacked Smart Devices - Methodical Foundations for Autonomous Theft Awareness based on Activity Recognition and Novelty Detection},
booktitle={Proceedings of the 10th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART,},
year={2018},
pages={131-142},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006594901310142},
isbn={978-989-758-275-2},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 10th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART,
TI - Hijacked Smart Devices - Methodical Foundations for Autonomous Theft Awareness based on Activity Recognition and Novelty Detection
SN - 978-989-758-275-2
AU - Jänicke M.
AU - Schmidt V.
AU - Sick B.
AU - Tomforde S.
AU - Lukowicz P.
PY - 2018
SP - 131
EP - 142
DO - 10.5220/0006594901310142