Letian Yang
Hi, I am Letian, a fourth-year Ph.D. candidate in Statistics in the Department of Data Sciences and Operations at the USC Marshall School of Business, advised by Professor Dennis Shen. I work on causal inference and high-dimensional statistics.
Before USC, I received my B.S. in Statistics from the Southern University of Science and Technology (SUSTech) and spent a semester as an exchange student at UC Berkeley.
My research is about drawing reliable conclusions from messy, complex data. My main project studies how to measure the true effect of a change in a randomized experiment when there are far more variables than data points. I also work on using large language models to improve recommendations, and on deep learning for context-specific gene prioritization.
news
| Aug 2026 | I wrapped up my summer internship as a Data Scientist at Roblox! |
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| Jul 2026 | I’m honored to have received a Marshall Mini Grant from the USC Marshall School of Business! |
| Nov 2025 | I’m excited to share that I have passed my qualifying exam and am now officially a Ph.D. candidate! |
| Nov 2024 | Our preprint, Algebraic and Statistical Properties of the Partially Ordinary Least Squares Interpolator, is now live on arXiv! |
| Oct 2024 | I have successfully passed the summer paper milestone in the Statistics PhD program! |