Hajiyev, H., Hajiyev, E., Avezov, M., Makhmudov, S., & Abdukhalikova, D. (2026). An Intelligent Optimization-Based Deep Belief Network for Fraud Detection in Financial Transaction Systems. Engineering, Technology & Applied Science Research, 16(1), 31585–31590. https://doi.org/10.48084/etasr.15346