2023

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Machine Learning Models Stacking in the Malicious Links Detecting
(Igor Sikorsky Kyiv Polytechnic Institute, 2023) Khukalenko, Yevhenii; Stopochkina, Iryna; Ilin, Mykola
An analysis of the performance of various classifiers on address and network groups of features was performed. A new classification model is proposed, which is a stacking of 3 models: kNN, XGBoost and Transformer. The best model for stacking was experimentally determined: Logistic Regression, which made it possible to improve the result of the best available model by 3%. The hypothesis that stacking a larger number of worse models has an advantage over stacking a smaller number of more productive models on the used data set was confirmed: regardless of the choice of stacking metaalgorithm, stacking of three models showed better results than stacking two.
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Models of Denial of Service Attacks on Cyber-Physical Systems
(Igor Sikorsky Kyiv Polytechnic Institute, 2023) Ovcharuk, Mykola; Ilin, Mykola
Mathematical models of denial-of-service attacks are investigated in the paper. Threats of kinetic impact on systems in cyberspace are considered. Targeted computer systems and systems with low and high-security levels were studied. The simulation results demonstrate a successful resolution of the task.