205 citations · 822 across the 39 of their papers we have counts for
4 papers · 1 filter
Exact Minimax Estimation for Phase Synchronization
Chao Gao, Anderson Y. Zhang
We study the phase synchronization problem with measurements , where is an -dimensional complex unit-modulus vector and is a c…
Convergence Rates of Empirical Bayes Posterior Distributions: A Variational Perspective
Fengshuo Zhang, Chao Gao
We study the convergence rates of empirical Bayes posterior distributions for nonparametric and high-dimensional inference. We show that as long as the hyperparameter set is discre…
Model Repair: Robust Recovery of Over-Parameterized Statistical Models
Chao Gao, John Lafferty
A new type of robust estimation problem is introduced where the goal is to recover a statistical model that has been corrupted after it has been estimated from data. Methods are pr…
Investigating the relationship between cosmic curvature and dark energy models with the latest supernova sample
Chao Gao, Yun Chen, Jie Zheng
We investigate the relationship between the cosmic curvature and the model of dark energy (hereafter DE) with the recent Type Ia supernovae (hereafter SNe Ia) data, i.e., the Panth…