Jufriadif Naam

Work place: Department of Informatics Doctoral, Faculty of Information Technology, Universitas Nusa Mandiri, Jakarta, 12540, Indonesia

E-mail: jufriadifnaam@gmail.com

Website: https://orcid.org/0000-0002-9586-7031

Research Interests:

Biography

Jufriadif Na'am is a professor and lecturer at Nusa Mandiri University specializing in Computer Vision and Image Processing. He earned his Professorship in 2019 and his Dr. (doctorate) degree on Information Technology in 2017. Previously, he was a lecturer at Putra Indonesia University (YPTK) Padang. His research focuses on computer vision, image processing and artificial neural networks. He also has many publications, actively writes in scientific journals and books, including on information systems and blockchain.

Author Articles
RAFA-BioAuth: Risk-Adaptive and Fairness-Aware Biometric Authentication for Secure Mobile Banking

By Dendy K. Pramudito Jufriadif Naam Ferda Ernawan

DOI: https://doi.org/10.5815/ijieeb.2026.04.04, Pub. Date: 8 Aug. 2026

This research examines RAFA-BioAuth, a risk-adaptive, fairness-aware framework for mobile banking in cases of presentations and facial occlusions. The proposed solution combines aspects of: Identity Similarity, Passive Presentation Attack Detection (PAD), Asymmetric Financial-Risk Estimation and Fairness Regularization at the Identity Level. For evaluation purposes, all benchmark datasets were split into subject disjoint training, validation, and testing sets. The threshold values from the validation set were used. Bootstrap resampling was employed to estimate the variance. Monte Carlo simulations were performed to estimate the risk. The results showed that identity verification (AUC = 0.548) and PAD (AUC ≈ 0.55) were poor. Comparing RAFA to the AND rule resulted in FAR = 0.20, FRR = 0.31, and expected risk = 340. On the other hand, the AND rule had lower FAR of 0.09, but increased FRR to 0.78. Finally, a conservative end-to-end approach produced an FRR of 0.686. Thus, our results indicate trade-offs rather than production-readiness as we did not perform deployment, cross-device, or cross-dataset validations on our solutions. We present the contributions of this research as being an interpretable integration and not a new algorithm.

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