Weihao Xuan
3 papers · Latest:
Artificial Intelligence
A Versatile AI Agent for Rare Disease Diagnosis and Risk Gene Prioritization
Hygieia is a versatile AI agent that integrates multi-modal data for accurate rare disease diagnosis and risk gene prioritization, outperforming physicians.
2605.06226
Natural Language ProcessingThe Chameleon's Limit: Investigating Persona Collapse and Homogenization in Large Language Models
LLMs exhibit 'Persona Collapse,' where distinct agent profiles converge into homogeneous behavior, quantified by a new framework.
2604.24698
Information RetrievalCode-Switching Information Retrieval: Benchmarks, Analysis, and the Limits of Current Retrievers
This paper introduces new benchmarks (CSR-L, CS-MTEB) to show how code-switching severely degrades information retrieval performance, even for multilingual models.
2604.17632
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