316 citations · 1.7k across the 39 of their papers we have counts for
3 papers · 2 filters
Optimal rates of convergence for covariance matrix estimation
T. Tony Cai, Cun-Hui Zhang, Harrison H. Zhou
Covariance matrix plays a central role in multivariate statistical analysis. Significant advances have been made recently on developing both theory and methodology for estimating l…
Nonparametric regression in exponential families
Lawrence D. Brown, T. Tony Cai, Harrison H. Zhou
Most results in nonparametric regression theory are developed only for the case of additive noise. In such a setting many smoothing techniques including wavelet thresholding method…
Estimation in functional regression for general exponential families
Winston Wei Dou, David Pollard, Harrison H. Zhou
This paper studies a class of exponential family models whose canonical parameters are specified as linear functionals of an unknown infinite-dimensional slope function. The optima…