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Zai-Fu Zhan

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#natural language process... Preprint Sep 2026

Can We Still Trust Disaster Social Sensing? Empirical Evidence on Detecting AI-Generated Social Media Posts

Disaster social sensing converts public social-media posts into evidence for situational awareness and humanitarian needs, but generative artificial intelligence (AI) can produce plausible messages that resemble eyewitness reports. This study investigates whether text-based AI detectors can reliably distinguish human-a...

Xiao-Shan Zhou, Zai-Fu Zhan · 0 citations
#artificial intelligence Preprint Sep 2026

ChestPheNoT: Deployable, Auditable Label-Status-Evidence Extraction from Radiology Reports

CHESTPHENOT is a compact 0.5-3B language model that jointly extracts finding labels, three-class status (present/absent/uncertain), and verbatim supporting evidence spans and demonstrates that locally deployable models can provide competitive and directly auditable radiology-report extraction without relying on externa...

Kai Yu, Chen-Yu Zhu, Zai-Fu Zhan et al. · 0 citations
Book Open access Aug 2026

Salient-Q: A Saliency-Guided Vision-Language Framework for Medical Image De-Identification

Salient-Q, a saliency-guided vision-language framework that addresses challenges of PHI identification and localization through three architectural innovations, outperforms other baseline models in terms of PHI identification and localization.

Sicheng Zhou, Zai-Fu Zhan, Lei Wu et al. · 0 citations

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