Tim Tsz-Kit Lau

Postdoctoral Researcher Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine Department of Statistics and Data Science, The Wharton School The University of Pennsylvania Email: timlautk [AT] upenn.edu CV; Google Scholar; GitHub

About Me

I am currently a postdoctoral researcher at the University of Pennsylvania, jointly supervised by Prof. Weijie Su from Department of Statistics and Data Science, The Wharton School and Department of Computer and Information Science (CIS), School of Engineering and Applied Science (by courtesy), and Prof. Qi Long from Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine as well as Statistics and Data Science and CIS Departments (by courtesy).

I was a postdoctoral principal researcher in Econometrics and Statistics at the University of Chicago Booth School of Business, supervised by Prof. Mladen Kolar, from October 2023 to October 2024. I received my Ph.D. in Statistics from Department of Statistics and Data Science, Northwestern University, advised by Prof. Han Liu.

I work broadly at the interface of statistics, machine learning and optimization, with applications to large language models (LLMs) and more broadly generative AI (GenAI). See also my bio for details.

News

• Just started another one-year postdoctoral researcher position at University of Pennslyvania in November 2024, jointly supervised by Prof. Weijie Su from Department of Statistics and Data Science, the Wharton School and Prof. Qi Long from Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, subsequent to my one-year postdoc at Chicago Booth.

• Recent preprints on adaptive batch size schemes for large-scale distributed training: arXiv:2402.11215, arXiv:2406.139366