Anomaly Detection Enhanced Classification in Computer Intrusion Detection
This paper describes experiences and results applying Support Vector Machine (SVM) to a Computer Intrusion Detection (CID) dataset. This is the second stage of work with this dataset, emphasizing incorporation of anomaly detection in the modeling and prediction of cyber-attacks. The SVM method for classification is used as a benchmark method (from previous study  ), and the anomaly detection approaches compare so-called “one class” SVMs with a thresholded Mahalanobis distance to define support regions. Results compare the performance of the methods, and investigate joint performance of classification and anomaly detection. The dataset used is the DARPA/KDD-99 publicly available dataset of features from network packets classified into non-attack and four attack categories.
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