Tianning Chai

I am Tianning Chai (Ray), currently a research intern at SAIL (Stanford Artificial Intelligence Laboratory), working with Maggie Wang, Zhanpeng He, Raven Huang and Prof. Jiajun Wu. Previously I was at BAIR (Berkeley Artificial Intelligence Research), working with Jiaxin Ge, Junyi Zhang, Haiwen Feng, Roei Herzig and Prof. Trevor Darrell. I obtained my B.Eng from Wuhan University, advised by Prof. Mang Ye.

Publications

• Activation Reward Models for Few-Shot Model Alignment
  ACL Findings 2025 · Project · Paper
  Tianning Chai*, Chancharik Mitra*, Brandon Huang, Gautam Rajendrakumar Gare, Zhiqiu Lin, Assaf Arbelle, Leonid Karlinsky, Rogerio Feris, Trevor Darrell, Deva Ramanan, Roei Herzig
• Enhancing Few-Shot Vision-Language Classification with Large Multimodal Model Features
  ICCV 2025
  Chancharik Mitra*, Brandon Huang*, Tianning Chai, Zhiqiu Lin, Assaf Arbelle, Rogerio Feris, Leonid Karlinsky, Trevor Darrell, Deva Ramanan, Roei Herzig
• Decentralized Federated Learning via Third-Party Bridge Collaboration
  Preprint 2024 · Paper
  Tianning Chai, Mang Ye, Wenke Huang, Chun-Mei Feng

Honors & Awards

• Wuhan University
  Top 3AI Department · Junior Year GPA
• ASC Student Supercomputer Challenge
  Global Silver2024 · Team Leader
  Optimized LLM inference on HPC clusters.
• iGEM
  Global Gold2023 · Team Member
  Engineered E. coli into a biosensor that records temporal signals into DNA, modeling the recording process with ODEs.