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An Effective Network Traffic Classification Method with Unknown Flow Detection

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5 Author(s)
Jun Zhang ; School of Information Technology, Deakin University, Melbourne, Australia, 3125 ; Chao Chen ; Yang Xiang ; Wanlei Zhou
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Traffic classification technique is an essential tool for network and system security in the complex environments such as cloud computing based environment. The state-of-the-art traffic classification methods aim to take the advantages of flow statistical features and machine learning techniques, however the classification performance is severely affected by limited supervised information and unknown applications. To achieve effective network traffic classification, we propose a new method to tackle the problem of unknown applications in the crucial situation of a small supervised training set. The proposed method possesses the superior capability of detecting unknown flows generated by unknown applications and utilizing the correlation information among real-world network traffic to boost the classification performance. A theoretical analysis is provided to confirm performance benefit of the proposed method. Moreover, the comprehensive performance evaluation conducted on two real-world network traffic datasets shows that the proposed scheme outperforms the existing methods in the critical network environment.

Published in:

IEEE Transactions on Network and Service Management  (Volume:10 ,  Issue: 2 )