Dr. Timothy Ascus Chadza

Dr. Timothy Ascus Chadza

Author

Electrical Engineering

14 publications

Timothy received his B.Sc. degree in electrical engineering from the Malawi University of Business and Applied Sciences (MUBAS), formerly the University of Malawi -Polytechnic, in 2005. Later, he did an Advanced Postgraduate (Equivalent to M.Tech. degree) in advanced information technology–networkin...

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Contemporary Sequential Network Attacks Prediction using Hidden Markov Model

Conference Proceeding
Published 2 years ago, 473 views
Author
Dr. Timothy Ascus Chadza
Co-authors
Konstantinos G. Kyriakopoulos, Sangarapillai Lambotharan, Dr. Timothy Ascus Chadza
Abstract
Intrusion prediction is a key task for forecasting network intrusions. Intrusion detection systems have been primarily deployed as a first line of defence in a network, however; they often suffer from practical testing and evaluation due to unavailability of rich datasets. This paper evaluates the detection accuracy of determining all states (AS), the current state (CS), and the prediction of next state (NS) of an observation sequence, using the two conventional Hidden Markov Model (HMM) training algorithms, namely, Baum Welch (BW) and Viterbi Training (VT). Both BW and VT were initialised using uniform, random and count-based parameters and the experiment evaluation was conducted on the CSE-CICIDS2018 dataset. Results show that the BW and VT count-based initialisation techniques perform better than uniform and random initialisation when detecting AS and CS. In contrast, for NS prediction, uniform and random initialisation techniques perform better than BW and VT count-based approaches.
Year of Publication
2019
Proceedings Title
17th International Conference on Privacy, Security and Trust, PST 2019
Page Numbers
1-3
Conference Dates
26-28 August 2019
Conference Place
Fredericton
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“Academic success depends on research and publications.”
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