Yijie Hao
CS PhD @ Emory — AI Alignment

I want to understand what objectives LLMs actually pursue — not what we trained them to do, but what they learned to do, and whether the two diverge when the world shifts beneath them.

This is, I think, a core piece of the alignment problem.

I approach this via persona selection model and model trait generalization. If you are working on related problems, please feel free to reach out.

</think> Blog
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</output> Publications
Reasoning Traces Shape Outputs but Models Won't Say So
Yijie Hao*, Lingjie Chen*, Ali Emami, Joyce Ho. ACL 2026 Main.
Beyond Facts: Evaluating Intent Hallucination in Large Language Models
Yijie Hao, Haofei Yu, Jiaxuan You. ACL 2025 Main.
A Flexible Generative Model for Heterogeneous Tabular EHR with Missing Modality
Huan He*, Yijie Hao*, Yuanzhe Xi, Yong Chen, Bradley Malin, Joyce Ho. ICLR 2024.