Yoonsang Lee

Hello! I am a Ph.D. student in Computer Science at Princeton University, advised by Danqi Chen. Prior to that, I did my undergrad at Seoul National University, fortunate to be working with Eunsol Choi.

My research focuses on LLMs and agents. Recently, I've been working on:

• Long-horizon agents: Improving long-context reasoning, planning, and decision-making through test-time scaling and domain-specific training (SLIM).
• Harnesses and internalization: Designing and optimizing agent workflows, and training models to internalize these behaviours (AggAgent).
• Retrieval-augmented LMs: Enabling models to acquire and reason over real-world information beyond their training data (AmbigDocs, RARe, EGG).