Papers

Preprints

  1. Fast Global Convergence of Natural Policy Gradient Methods with Entropy Regularization
    S. Cen, C. Cheng, Y. Chen, Y. Wei, Y. Chi, 2020. [paper][slides]

  2. Tackling Small Eigen-gaps: Fine-Grained Eigenvector Estimation and Inference under Heteroscedastic Noise
    C. Cheng, Y. Wei, Y. Chen, 2020. [paper][slides]

Journals

  1. Asymmetry Helps: Eigenvalue and Eigenvector Analyses of Asymmetrically Perturbed Low-Rank Matrices
    Y. Chen, C. Cheng, J. Fan, 2018. (alphabetical order) [paper][slides]
     —  accepted to Annals of Statistics, 2020.