no code implementations • 17 May 2017 • Zhen Li, Jingtian Bai, Weilian Zhou
When no hubs are known, we use Graphical Lasso (GL) to provide information of hubs and find that the performance of DHGL will always be better than HGL if correct prior information is given and will seldom degenerate when the prior information is wrong.
1 code implementation • 14 Aug 2018 • Zhen Li, Lili Wu, Weilian Zhou, Sujit Ghosh
Multivariate density estimation is a popular technique in statistics with wide applications including regression models allowing for heteroskedasticity in conditional variances.
Methodology
no code implementations • 28 Mar 2021 • Zhengbo Luo, Zitang Sun, Weilian Zhou, Zizhang Wu, Sei-ichiro Kamata
We show that the widely used DNN design strategy, constantly stacking a small design (usually 2-3 layers), could be easily improved, supported by solid theoretical knowledge and with no extra parameters needed.