Welcome to Doyeon's Homepage
Welcome to Doyeon's Homepage
Hi, I'm Doyeon, a math PhD student at University of Illinois, Chicago. I earned my Master's degree in Applied Statistics from California State University, Long Beach (Second hometown). I earned my Bachelor's degrees in Economics and Mathematics from University of Minnesota, Twin Cities.
My primary research interests lie in applied and theory-informed statistics, particularly statistical machine learning methods for variable and model selection. I also have broad interests in time series, longitudinal data, and in practical applications in bio/medical statistics which I became familiar with early on through my background environment.
Beyond statistics, I previously had strong academic interests in applied areas of economics, particularly Industrial Organization (IO), Health Economics, and Econometrics. I also have a background in the sciences and want to further explore biology and healthcare-related fields, such as molecular biology, protein folding, and clinical applications.
These figures present a preliminary toy example from my ongoing project on variable selection in partial linear additive models with adaptive LASSO and smoothing penalties: (1L) the solution path over the selection parameter, (1R) BIC over the selection parameter, (2L) the solution path over the smoothing parameter, and (2R) BIC over the smoothing parameter. After profiling out the nonparametric additive components, the solution paths appear relatively insensitive to the smoothing parameter in this toy example. Under this profiled framework, the proposed estimator satisfies the oracle property under suitable regularity conditions. Beyond the current scope of this project, incorporating hierarchical structure into variable selection remains a challenging methodological question.
I love eating.
I first came to the US in 2012 and I mostly spent my twenties in Orange, CA and Minnepolis, MN. I have been to other cities; Chicago, Los Angeles, San Fransico, Salt Lake City, Huston, Atlenta, etc. When I was in Chicago in 2019, I thought I wouldn't want to live in Chicago and I wouldn't go back to Chicago because Chicago is a very windy city, but I'm in Chicago now. I'm planning to travel to New York.