Research

Publications

• On the Achievability of Efficiency Bounds for Covariate-Adjusted Response-Adaptive Randomization.
  Jiahui Xin and Wei Ma.
  Statistical Methods in Medical Research, 2025.
  [arXiv] [Code]
  

Manuscripts Under Review

• Cross-Validation Model Averaging under Covariate-Adaptive Randomization.
  Fuyi Tu, Jiahui Xin and Wei Ma.
  Under review at Statistica Sinica.
  

Manuscripts Preparing for Submission

• Covariate-Adaptive Randomization with Many Strata: Asymptotic Theory and Statistical Inference.
  Jiahui Xin, Hanzhong Liu, Feifang Hu and Wei Ma.
  Manuscript in preparation for submission to Biometrika.
  [arXiv (previous version)]
  

Working Papers

• Covariate-Adaptive Enrollment for Single-Arm Trials Using External Controls.
  Jiahui Xin, Hengjia Fang, Zhiyue Huang, Satoshi Yoshida and Wei Ma.
  Working paper.

Ongoing Projects

• Exact inference for covariate-adjusted response-adaptive designs.
  MRC Biostatistics Unit, University of Cambridge.