About

Baiyuan Chen

I am a Master's student at Matsuo Lab at the University of Tokyo, and a research assistant at the Center for Theoretical Neuroscience at Columbia University, where I work on foundation models for neural encoding and decoding. I am deeply grateful to Liam Paninski and Yizi Zhang for their generous guidance and support.

Before that, I completed an MPhil in Data Intensive Science at the University of Cambridge, where I worked with Sven Krippendorf on Calabi-Yau manifolds, which play a central role in string theory. I received my bachelor's degree in Mathematical Sciences, with a minor in Cognitive Science, from UTokyo, graduating as valedictorian of my department. There I was fortunate to be advised by Masaaki Imaizumi and to collaborate with Shinji Ito on deep learning theory.

My research interests include deep learning theory, foundation models for neuroscience, and, more recently, LLM post-training.

News

Oct. 2026
New co-authored paper on latent models of animal behavior across chronic recordings is now available: Link
Sept. 2026
Our paper on representation learning for 3D animal behavior is now available: Link
Sept. 2025
My undergraduate thesis has been accepted to NeurIPS 2025. Appreciate the guidance and support from my professors!
Aug. 2025
My undergraduate thesis is now available: Link
Mar. 2025
Received the Dean's Award and was named Valedictorian of the Department of Integrated Sciences.

Beyond Academia

Beyond my research, I’m fascinated by mathematics, cognitive science, art, and Chinese philosophy, and I’m always curious about the hidden connections among them.

I also enjoy watching TV series, anime, and films. Outside of that, I love snowboarding, reading, volunteering, and photography. Some of my photos are available here.

Contact
Email: chenbaiyuan75 [at] gmail [dot] com