Research

My research interests include

• Statistical Learning Theory

• Distributed Estimation and Inference

• Statistical Inference for Online Streaming Data

Publications

• Xi Chen, Jason D. Lee, He Li, and Yun Yang. (in alphabetical order) Distributed Estimation for Principal Component Analysis: an Enlarged Eigenspace Analysis. Journal of the American Statistical Association (Theory and Methods), 2021.

• Xi Chen, Zehua Lai, He Li, and Yichen Zhang. (in alphabetical order) Online Statistical Inference for Stochastic Optimization via Kiefer-Wolfowitz Methods.
  Journal of the American Statistical Association (Theory and Methods), 2023.

• Xi Chen, Zehua Lai, He Li, and Yichen Zhang. (in alphabetical order) Online Statistical Inference for Contextual Bandits via Stochastic Gradient Descent. arXiv, 2022.

Academic Service

• Journal Reviewer: Annals of Statistics

• Conference Reviewer: NeurIPS, ICML, ICLR, AISTATS