Justin Y. Chen

Welcome!

I am a PhD student in my final year at MIT. I study computer science in the Theory of Computation Group. I am very happy to be advised by Piotr Indyk.

I think about problems at the intersection of algorithm design and machine learning. Recently, I have been crafting algorithms which (1) are optimized for repeated computations, (2) evaluate properties of large language models, or (3) are stable to small input perturbations for privacy and replicability.

During my PhD, I have been fortunate to work at Google Research and AWS. I was an undergrad at Stanford University and had the great pleasure of working with Greg Valiant and Peter Bailis. It all started in Hanover, New Hampshire with Chris Polashenski at the Cold Regions Research and Engineering Laboratory.

Feel free to reach out to me at {first 4 letters of first name}{first letter of last name}@mit.edu.

News

Apr 2025: The Wall Street Journal wrote about our work on “Evaluating the World Model Implicit in a Generative Model”.