Postdocs

Cue Hyunkyu Lee

I am a postdoctoral research scientist in the Department of Biostatistics at Columbia University and work with Iuliana Ionita-Laza in the Department of Biostatistics. I received my doctorate in Biomedical Sciences from Seoul National University College of Medicine in 2021 under the supervision of Buhm Han. While working on my doctorate, I developed several statistical and computational methods for understanding complex human diseases. My research interest focuses on developing techniques to solve the complex computational problems involved in understanding the genetic basis of human diseases. I am now working on developing statistical methods to identify pleiotropic effects shared between multiple human traits. Outside of work, I enjoy being physically active and spending time with my family. I am very honored and excited to be a part of the Columbia University Department of Biostatistics.

Mark (Tianshe) He

I am a postdoctoral research scientist working under Jianhua Hu and Ying Wei. Presently, I am working on applying principles from deep learning to quantile regression, with a particular focus on modelling and imputation of missing data for psychiatric electronic health records.

While earning my doctorate at the University of North Carolina at Chapel Hill, I worked with Shankar Bhamidi and Andrew Nobel on new methodologies for community detection on weighted and multimodal network-valued data. We have applied these methods to data from domains such as geography, psychiatry, neuroimaging, genomics, and climatology.

Xingche Guo

I am a postdoctoral research scientist in the Department of Biostatistics at Columbia University, working on developing statistical methods to examine the complex interactions of clinical, electrophysiology, and behavioral moderators and mediators of differential treatment outcomes in the EMBARC (Establishing Moderators and Biosignatures of Antidepressant Response for Clinical Care) study under the supervision of Yuanjia Wang. Currently, I am working on reinforcement learning and statistical modeling of resting-state electroencephalography data. I received my PhD in statistics from Iowa State University in 2021 and my BS in statistics from the University of Science and Technology of China in 2016. 

Yaqiong Yao

I am a postdoctoral researcher in the Department of Biostatistics at Columbia University working with Professor Iuliana Ionita-laza. Prior to this, I obtained my PhD in statistics from the University of Connecticut in 2021 under the supervision of HaiYing Wang. My research interests mainly focus on genetic and genomic data analysis and subsampling for big data.