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AVOCAD: Adaptive Terrorist Comms Surveillance and Interception using Machine Learning | IEEE Conference Publication | IEEE Xplore

AVOCAD: Adaptive Terrorist Comms Surveillance and Interception using Machine Learning

Publisher: IEEE

Abstract:

VoIP traffic classification is becoming increasingly important in the real-time detection and disruption of drug distribution and terrorism communications. To reduce wast...View more

Abstract:

VoIP traffic classification is becoming increasingly important in the real-time detection and disruption of drug distribution and terrorism communications. To reduce waste and inefficiency, it is important that a VoIP call detection system is highly accurate and adaptive in order to distinctly differentiate VoIP and non-VoIP calls accurately and to detect newer versions of VoIP calls if a user uses a different VoIP application to avoid detection. However, a consistent disadvantage of VoIP classifiers is that they are only useful on the VoIP version or product that they were trained on. These systems are therefore unable to accurately classify previously unseen versions of the different VoIP products. In this paper we introduce Avocad, a novel methodology for detecting different VoIP traffic products such as Skype with high accuracy. Our approach uses machine learning classifiers and network statistical features and has comparable detection accuracy and speed to existing VoIP detection applications. The uniqueness of our method is that it detects untrained versions of a VoIP application, thus helping to optimise real-time detection of VoIP traffic. Results show that our method can record an F-Measure score of up to 0.996.
Date of Conference: 05-08 August 2019
Date Added to IEEE Xplore: 31 October 2019
ISBN Information:

ISSN Information:

Publisher: IEEE
Conference Location: Rotorua, New Zealand

I. Introduction

VOIP applications have replaced traditional phone services because of the rich advantages they offer including sound clarity, cost saving for businesses and usage simplicity. A major advantage of VoIP over Public Switched Telephone Network (PSTN) is the uncharged or low rate for both national and international calls. Another feature that VoIP offers is the higher voice quality. Unlike PSTN that encodes up to 8 KHz, some VoIP applications maintain 16 KHz [1]. Corporations can cut costs for their network infrastructure by having a single standalone network to serve both data and voice, rather than having two different networks. The availability and ease of use of VoIP has also attracted people that have little technical background to use the technology in their communications.

References

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