Zhi Wang

Zhi Wang

Ph.D. Student in Statistics

Columbia University

I’m a fifth year Ph.D. student at Department of Statistics, Columbia University. I work with Prof. Jingchen Liu and Prof. Zhiliang Ying on statistical learning for process data and its application in psychometrics.


  • Statistical Machine Learning
  • Latent Variable Modeling
  • Longitudinal Data Analysis


  • B.S. in Mathematics and Applied Mathematics, 2016

    Peking University

Working Papers

Accurate assessment via process data
Adaptively weighted stochastic gradient descent algorithm
ProcData: An R package for process data analysis
Subtask analysis of process data through a predictive model