Weijie Su
Associate Professor
Wharton Statistics and Data Science Department
and, by courtesy, Departments of Computer and Information Science, Mathematics, and Biostatistics, Epidemiology and Informatics
Co-Director
Penn Research in Machine Learning
University of Pennsylvania
Office: 411 Academic Research Building
Email: suw AT wharton DOT upenn DOT edu
Research Interests
(Long-term) Mathematical, compute-light approaches to understanding deep learning and AI
(Current) Statistical foundations of large language models, privacy-preserving machine learning, high-dimensional statistics, mathematical optimization
Editorial Board
Journal of Machine Learning Research
Journal of the American Statistical Association
Operations Research
Foundations and Trends® in Statistics
Journal of the Operations Research Society of China
Communications in Mathematical Sciences
Recent Featured Papers
- Statistical Impossibility and Possibility of Aligning LLMs with Human Preferences: From Condorcet Paradox to Nash Equilibrium. K. Liu, Q. Long, Z. Shi, W. Su, and J. Xiao.
- The 2020 United States Decennial Census Is More Private Than You (Might) Think. B. Su, W. Su, and C. Wang.
- A Statistical Viewpoint on Differential Privacy: Hypothesis Testing, Representation and Blackwell's Theorem. W. Su.
- A Statistical Framework of Watermarks for Large Language Models: Pivot, Detection Efficiency and Optimal Rules. X. Li, F. Ruan, H. Wang, Q. Long, and W. Su.
- A Law of Next-Token Prediction in Large Language Models. H. He and W. Su.
News
- March 2025. We (with Qi Long and Inyoung Choi) will be offering a short course on large language models at ENAR 2025.
- February 2025. Our review on large language models for statisticians is available.
- January 2025. Our third ranking experiment (with Buxin Su) was successfully conducted at ICML 2025. See more details in OpenRank.
- October 2024. Our work (with Buxin Su and Chendi Wang) on the 2020 United States Decennial Census was featured by New Scientist.
- August 2024. Our report on the ICML 2023 ranking experiment is available.
- August 2024. We (with Emily Getzen and Linjun Zhang) offered a short course on large language models at JSM in Portland, Oregon.
- July 2024. Our work (with Jinshuo Dong and Aaron Roth) on $f$-differential privacy received the International Congress of Basic Science (ICBS) Frontiers of Science Award in Mathematics.
- I'm serving as the lead guest editor for a special issue on large language models in the journal Stat.