Junwei Deng 邓珺玮

Ph.D. Student in Information Sciences · UIUC

I am a fourth-year Ph.D. student at University of Illinois Urbana-Champaign, advised by Prof. Jiaqi Ma. My research focuses on data-centric AI for LLM and foundation models, especially through principled methods of data attribution.

I work in Google Research as a Research Intern in Summer 2026. Previously, I was a Machine Learning Engineer at Intel (2020–2023) and a Research Intern at Microsoft MSRA (2025). I received my M.S. from University of Michigan and my B.S. from Shanghai Jiao Tong University.

📧 junweid2 AT illinois DOT edu · 🏡 Urbana, Illinois

Google Scholar GitHub CV

🔍 I will be on the industry job market in 2027! Feel free to DM me for any opportunities or discussions.

Selected Publications

(* Equal Contribution)

A Survey of Data Attribution: Methods, Applications, and Evaluation in the Era of Generative AI

Junwei Deng*, Yuzheng Hu*, Pingbang Hu*, Ting-Wei Li*, Shixuan Liu*, Jiachen T. Wang, Dan Ley, Qirun Dai, Benhao Huang, Jin Huang, Cathy Jiao, Hoang Anh Just, Yijun Pan, Jingyan Shen, Yiwen Tu, Weiyi Wang, Xinhe Wang, Shichang Zhang, Shiyuan Zhang, Ruoxi Jia, Himabindu Lakkaraju, Hao Peng, Weijing Tang, Chenyan Xiong, Jieyu Zhao, Hanghang Tong, Han Zhao, Jiaqi W. Ma

Preprint

Efficient Ensembles Improve Training Data Attribution

Junwei Deng*, Ting-Wei Li*, Shichang Zhang, Jiaqi W. Ma

TMLR 2026

A Versatile Influence Function for Data Attribution with Non-Decomposable Loss

Junwei Deng, Weijing Tang, Jiaqi W. Ma

ICML 2025

dattri: A Library for Efficient Data Attribution

Junwei Deng*, Ting-Wei Li*, Shiyuan Zhang, Shixuan Liu, Yijun Pan, Hao Huang, Xinhe Wang, Pingbang Hu, Xingjian Zhang, Jiaqi W. Ma

NeurIPS 2024 Spotlight

Computational Copyright: Towards A Royalty Model for Music Generative AI

Junwei Deng, Xirui Jiang, Shiyuan Zhang, Shichang Zhang, Himabindu Lakkaraju, Ruijiang Gao, Chris Donahue, Jiaqi W. Ma