7 citations · 24 across the 8 of their papers we have counts for
10 papers
A Modular and Adaptive System for Business Email Compromise Detection
Jan Brabec, Filip Šrajer, Radek Starosta +8
The growing sophistication of Business Email Compromise (BEC) and spear phishing attacks poses significant challenges to organizations worldwide. The techniques featured in traditi…
Benchmark of Data Preprocessing Methods for Imbalanced Classification
Radovan Haluška, Jan Brabec, Tomáš Komárek
Severe class imbalance is one of the main conditions that make machine learning in cybersecurity difficult. A variety of dataset preprocessing methods have been introduced over the…
Probing restricted diffusion and exchange using free gradient waveforms: validation by numerical simulations
Arthur Chakwizira, Carl-Fredrik Westin, Jan Brabec +4
Monitoring time-dependence with diffusion MRI yields observables sensitive to compartment sizes (restricted diffusion) and membrane permeability (water exchange). However, restrict…
A framework for comprehensible multi-modal detection of cyber threats
Jan Kohout, Čeněk Škarda, Kyrylo Shcherbin +2
Detection of malicious activities in corporate environments is a very complex task and much effort has been invested into research of its automation. However, vast majority of exis…
Decision-forest voting scheme for classification of rare classes in network intrusion detection
Jan Brabec, Lukas Machlica
In this paper, Bayesian based aggregation of decision trees in an ensemble (decision forest) is investigated. The focus is laid on multi-class classification with number of samples…
Learning Explainable Representations of Malware Behavior
Paul Prasse, Jan Brabec, Jan Kohout +3
We address the problems of identifying malware in network telemetry logs and providing \emph{indicators of compromise} -- comprehensible explanations of behavioral patterns that id…