Research

2025

• Covariates-Adjusted Mixed-Membership Estimation: A Novel Network Model with Optimal Guarantees
  Jianqing Fan, Jiawei Ge, Jikai Hou (alphabetical order)
  

• MATH-Perturb: Benchmarking LLMs’ Math Reasoning Abilities against Hard Perturbations
  Kaixuan Huang, Jiacheng Guo, Zihao Li, Xiang Ji, Jiawei Ge, Wenzhe Li, Yingqing Guo, Tianle Cai, Hui Yuan, Runzhe Wang, Yue Wu, Ming Yin, Shange Tang, Yangsibo Huang, Chi Jin, Xinyun Chen, Chiyuan Zhang, Mengdi Wang
  

2024

• Securing Equal Share: A Principled Approach for Learning Multiplayer Symmetric Games
  Jiawei Ge*, Yuanhao Wang*, Wenzhe Li, Chi Jin (*=equal contribution)
  

• Optimal Aggregation of Prediction Intervals under Unsupervised Domain Shift
  Jiawei Ge*, Debarghya Mukherjee*, Jianqing Fan (*=equal contribution)
  The Thirty-Eighth Annual Conference on Neural Information Processing Systems (NeurIPS 2024)
  

2023

• Maximum Likelihood Estimation is All You Need for Well-Specified Covariate Shift
  Jiawei Ge*, Shange Tang*, Jianqing Fan, Cong Ma, Chi Jin (*=equal contribution)
  International Conference on Learning Representations (ICLR), 2024
  

• UTOPIA: Universally Trainable Optimal Prediction Intervals Aggregation
  Jianqing Fan, Jiawei Ge, Debarghya Mukherjee (alphabetical order)
  

• On the Provable Advantage of Unsupervised Pretraining
  Jiawei Ge*, Shange Tang*, Jianqing Fan, Chi Jin (*=equal contribution)
  International Conference on Learning Representations (ICLR), 2024 (Spotlight)