PRISM-X: Progressive semi-supervised threat detection in X-ray scans with self-guided multimodal refinement. - Abdelfatah Hassan Ahmed; Mohammad Irshaid; Mohamad Alansari; Divya Velayudhan; Mohammed Tarnini; Mohammed El-Amine Azz; Naser A. Abou-Elheggag; Taimur Hassan; Ernesto Damiani; Naoufel Werghi (Inf. Process. Manag., 2026)