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National Repository of Grey Literature

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Optimization of Classification Models for Malicious Domain Detection Pouč, Petr ; Jeřábek, Kamil (referee) ; Hranický, Radek (advisor) Tato diplomová práce se zaměřuje na rozvoj pokročilých metod pro detekci škodlivých doménových jmen s využitím optimalizačních technik v oblasti strojového učení. Práce zkoumá a hodnotí účinnost různých optimalizačních strategií pro klasifikaci. Jako nástroje pro hodnocení jsem vybral klasifikační algoritmy, které se liší v jejich přístupu, včetně hlubokého učení, techniky rozhodovacích stromů, nebo hledání hyperrovin. Tyto metody byly posouzeny na základě schopnosti efektivně klasifikovat doménová jména v závislosti na použitých optimalizačních technikách. Optimalizace zahrnovala vytvoření přesně označených datových sad, aplikaci technik zpracování dat, pokročilou selekci atributů, řešení nerovnováhy tříd a ladění hyperparametrů. Experimentální část práce prokazuje vynikající úspěšnost kombinováním jednotlivých metod. Přičemž nejlepší modely CNN dosahovaly až 0.9926 F1 při současném snížení FPR na hodnotu 0.300%. Přínos práce spočívá v poskytnutí konkrétních metod a strategií pro efektivní detekci škodlivých doménových jmen v oblasti kybernetické bezpečnosti. Detailed record

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