Author

Zahid Akhtar

2 papers indexed here

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Preprint Aug 2026

HexMIL: Hierarchical Attention MIL for Ante-Hoc Explainable Detection of AI-Manipulated CT Volumes

Hierarchical EXplainable Multiple Instance Learning (Hierarchical EXplainable Multiple Instance Learning), a mask-free medical deepfake detector that simultaneously addresses both limitations using only binary volume-level supervision.

Orazio Pontorno, Luca Guarnera, Z. Akhtar et al. · 0 citations

Open access Sep 2026

Modality-Shared Anti-Spoofing for Face and Fingerprint

Extensive experiments show that the proposed multi-modal anti-spoofing approach to detect spoofing attacks across face and fingerprint not only significantly outperforms previous anti-spoofing methods but also uniquely offers the ability to handle potential attack types.

Mohamed Cheniti, Z. Akhtar, Chandranath Adak · Computers · 0 citations