About me

My name is Weiqiu You (尤玮秋). I am a final year PhD student in Computer and Information Science at University of Pennsylvania, advised by Prof. Eric Wong. Previously, I was advised by Prof. Mohit Iyyer while I was a Master’s student at UMass. I have interned at Meta, OIST, IBM Research, USC ISI.

My research develops structured explanation frameworks building on foundation models. I focus on two directions: (1) designing evaluation methods for large multimodal models that use LLMs as evaluators within principled frameworks, and (2) enabling domain experts to understand and trust these models through structured explanations and reasoning chains. Through collaborations with experts in cosmology, surgery, and machine learning engineering, I’ve found that structure is essential for both model predictions and their evaluation — providing the interpretability and reliability needed for high-stakes applications.

Here is my CV.

Some random essays in my blog.

I am actively looking for postdoc and research scientist positions starting fall 2026.

Recent News!

• [Nov. 2025] I’ll be attending EMNLP in Suzhou, China to present our main conference papers Probabilistic Soundness Guarantees in LLM Reasoning Chains and BlackboxNLP workshop paper When LRP Diverges from Leave-One-Out in Transformers
• [Jul. 2025] I’ll be attending ICML in Vancouver, Canada to present our paper Sum-of-Parts: Self-Attributing Neural Networks with End-to-End Learning of Feature Groups