Fundamentals of Network Forensics by R.C. Joshi & Emmanuel S. Pilli

Author:R.C. Joshi & Emmanuel S. Pilli
Language: eng
Format: epub
Publisher: Springer London, London

(6.16)

subject to:

(6.17)

(6.18)

And Equation of One class SVM can be written as:

(6.19)

subject to:

(6.20)

(6.21)

They had used DARPA data set in which the ratio of anomaly traffic as compared to the normal is very less, i.e., the number of outliers is very small. Therefore, one-class SVM not always needs to maximize the distance from the origin for classifying outliers. They had removed bias b from soft margin SVM which considers the distance between the origin and hyperplane. After that by adjusting parameters like C and ρ of one-class SVM and soft margin SVM, they had derived enhanced SVM, as following:

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