Volodymyr O. Artemchuk

Integrity Diagnostics for Cross-Silo Federated Deepfake Speech Detection Under Heterogeneity and Poisoning

Cross-silo deepfake speech detection must accommodate organizations that observe different attack profiles and channel conditions while avoiding routine centralization of raw speech. We study federated learning (FL) for a compact detector combining linear-frequency cepstral coeff...

A Bounded Threat–Actor-Conditioned Cyber Risk Assessment Framework for Networked Systems Under Data-Scarce Conditions

Cyber risk assessment often combines likelihood and impact, but likelihood is difficult to justify when incident data are scarce and threat relevance depends on a specific actor. Existing attacker-aware methods improve context but frequently require attack graphs, vulnerability i...