Author

Fei Teng

The Hong Kong University of Science and Technology

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Jul 2026

Presentation, Not Mechanism: A Render Confound in Deprecation-Aware Memory Evaluation

AI systems increasingly retrieve from records that revise themselves: issue threads, encyclopedic histories, policy logs, and long conversations. The challenge is not only finding relevant evidence, but deciding which claims remain in force, which were superseded, and when to abstain. Structured memories promise to sol...

Zhao-Yang Jiang, Zhizhong Fu, Zicheng Li et al. · arXiv.org · 0 citations

#natural language process... Preprint Sep 2026

Learning to Fuse LLMs with Ontology Rankers for Rare-Disease Diagnosis

Ontology rankers remain useful for rare-disease diagnosis because each candidate can be traced to matched patient phenotypes. Large language models (LLMs) can generate differential diagnoses from the same patient description, but their predictions lack an equally clear evidence trail. Rather than asking which system sh...

Zhao-Yang Jiang, Zhizhong Fu, Yunsoo Kim et al. · 0 citations

Review Aug 2026

One Score, Two Decisions: Selective Prediction on the Rare-Disease Tail

It is proved that unlabelled scores alone cannot determine whether switching to the margin will help, and more accurate models pass the same check, showing that the limit is regime-specific.

Zhao-Yang Jiang, Zhizhong Fu, Yunsoo Kim et al. · 0 citations