Zhigen Zhao

activity

20092026

most citedApplying multiple testing procedures to detect change in East African vegetation

17 citations · 95 across the 19 of their papers we have counts for

collaborators

Showing 2018Show all

2 papers · 1 filter

math.ST2018★ 2 cited

On F-Modelling based Empirical Bayes Estimation of Variances

Yeil Kwon, Zhigen Zhao

We consider the problem of empirical Bayes estimation of multiple variances when provided with sample variances. Assuming an arbitrary prior on the variances, we derive different v…

math.ST2018

Global testing under the sparse alternatives for single index models

Qian Lin, Zhigen Zhao, Jun S. Liu

For the single index model $y = f (β^{τ} x, ε)$ with Gaussian design, %satisfying that rank $v a r (E [x ∣ y]) = 1$ where $f$ is unknown and $β$ is a sparse $p$ -dimensional unit vect…