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Adaptive Intrusion Detection - Using Machine Learning in the Context of Intrusion Detection Systems

Gerstle, Nicholas Olav
Master thesis
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URI
http://hdl.handle.net/11250/2615829
Date
2016
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  • Institutt for datateknologi og informatikk [7422]
Abstract
-This report covers an initial foray in applying a number of machine learn-

ing algorithms to the problem of classifying labeled network traffic flows in

the ISCX IDS data set. The ISCX data set was developed by the Informa-

tion Security Centre of Excellence at the University of New Brunswick and

provides a large set of labeled traffic flows suitable for testing a number

of detection techniques. A number of limitations should be noted in com-

parison to algorithms tested on the more common KDD99 data set. The

ISCX IDS data set includes only a single attack classification, in contrast

to the four attacks found in KDD99 data, and the number and distri-

bution of attacks is significantly different. Previous work has focused on

more formally structured machine learning techniques such as regression

analysis, clustering, and support vector machines. This work focuses on

comparing artificial neural networks against random forest ensembles and

support vector machines, as well as stateful vs stateless neural networks.

Random forest ensembles were found to be the most accurate through

most of the ISCX IDS data set, and were quick to train. Stateful recur-

rent neural networks did not outperformed stateless networks, though the

difference in accuracy between the two was less than that between the

recurrent network and the random forest ensemble.
Publisher
NTNU

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