Xingda Lyu (David)

Hi! I am Xingda Lyu, a rising senior at the University of Washington pursuing dual B.S. degrees in Statistics and Informatics, and minor in Philosophy.

I conduct research with the UW NLP Group and am advised by Prof. Chirag Shah at the UW InfoSeeking Lab. I am also a summer research intern at the UIUC CS Data Mining Group, advised by Prof. Jiawei Han.

My current research focuses on three connected directions:

• Human-AI collaboration:designing proactive, personalized agents that model users as evolving knowers and calibrate support and initiative over open-ended, long-horizon interactions.
• Epistemic AI: grounding proactive agents in users' structural ignorance and dynamic epistemic states, regulating initiative toward epistemic partnership.
• AI for Science: building agentic systems with dynamic retrieval and self-evolving memory for scientific reasoning.

Outside of research, I play competitive badminton and speak English, Mandarin, and French, with English and Mandarin as my native languages.