Examining the Performance for Forensic Detection of Rare Videos Under Time Constraints

Johan Garcia

2015

Abstract

In many digital forensic investigations large amounts of material needs to be examined. Investigations involving video files are one instance where the amounts of material can be very large. To aid in examinations involving video, automated tools for video content classification can be employed. In this work we examine the performance of several different video classifiers in the context of forensic detection of a small number of relevant videos among a large number of irrelevant videos. The higher level task performance that is of interest is thus the ability to detect a relevant video in a limited amount of time. The performance on this higher level task is a combination of the classification performance, but also the run-time performance of the classifiers. A variety of video classification techniques are available in the literature. This work examines task performance for 6 video classification approaches from literature using Monte-Carlo simulations. The results illustrate the interdependence between run-time and classification performance, and show that high classification performance in terms of true positive and false positive rates not necessarily lead to high task performance.

Paper Citation

in Harvard Style

Garcia J. (2015). Examining the Performance for Forensic Detection of Rare Videos Under Time Constraints . In Proceedings of the 12th International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2015) ISBN 978-989-758-117-5, pages 419-426. DOI: 10.5220/0005574204190426

in Bibtex Style

@conference{secrypt15,
author={Johan Garcia},
title={Examining the Performance for Forensic Detection of Rare Videos Under Time Constraints},
booktitle={Proceedings of the 12th International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2015)},
year={2015},
pages={419-426},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005574204190426},
isbn={978-989-758-117-5},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 12th International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2015)
TI - Examining the Performance for Forensic Detection of Rare Videos Under Time Constraints
SN - 978-989-758-117-5
AU - Garcia J.
PY - 2015
SP - 419
EP - 426
DO - 10.5220/0005574204190426