期刊名称：Journal of Intelligent Learning Systems and Applications
印刷版ISSN：2150-8402
电子版ISSN：2150-8410
出版年度：2014
卷号：6
期号：1
页码：45-52
DOI：10.4236/jilsa.2014.61005
出版社：Scientific Research Publishing
摘要：The success of
any Intrusion Detection System (IDS) is a complicated problem due to its
nonlinearity and the quantitative or qualitative network traffic data stream
with many features. To get rid of this problem, several types of intrusion
detection methods have been proposed and shown different levels of accuracy.
This is why the choice of the effective and robust method for IDS is very
important topic in information security. In this work, we have built two models
for the classification purpose. One is based on Support Vector Machines (SVM)
and the other is Random Forests (RF). Experimental results show that either
classifier is effective. SVM is slightly more accurate, but more expensive in
terms of time. RF produces similar accuracy in a much faster manner if given
modeling parameters. These classifiers can contribute to an IDS system as one
source of analysis and increase its accuracy. In this paper, KDD’99 Dataset is used and find out which
one is the best intrusion
detector for this dataset. Statistical
analysis on KDD’99 dataset found important issues which highly affect the
performance of evaluated systems and results in a very poor evaluation of
anomaly detection approaches. The most important deficiency in the KDD’99 dataset
is the huge number of redundant records. To solve these
issues, we have developed a new dataset, KDD99Train+ and KDD99Test+, which does
not include any redundant records in the train set as well as in the test set,
so the classifiers will not be biased towards more frequent records. The
numbers of records in the train and test sets are now reasonable, which make it
affordable to run the experiments on the complete set without the need to
randomly select a small portion. The findings of this paper will be very useful
to use SVM and RF in a more
meaningful way in order to maximize the performance rate and minimize the false
negative rate.
关键词：Intrusion Detection; KDD’99; SVM; Kernel; Random Forest
