Hao Helen Zhang

On the adaptive elastic-net with a diverging number of parameters

Hui Zou, Hao Helen Zhang · The Annals of Statistics · 2009 · 848 citations · Full text

Mathematical Programming, Numerical Analysis, Engineering +21

Adaptive Lasso for Cox's proportional hazards model

Hao Helen Zhang, Wenlian Lu · Biometrika · 2007 · 645 citations

Adaptive Lasso Estimator, High-dimensional Method, Variable Selection Problem +12

Component selection and smoothing in multivariate nonparametric regression

Yi Lin, Hao Helen Zhang · The Annals of Statistics · 2006 · 568 citations · Full text

Model Optimization, Component Selection, Machine Learning +11

Gene selection using support vector machines with non-convex penalty

Hao Helen Zhang, Jeongyoun Ahn, X. Sheldon Lin et al. · Bioinformatics · 2005 · 274 citations · Full text

A new chi-square approximation to the distribution of non-negative definite quadratic forms in non-central normal variables

Huan Liu, Yongqiang Tang, Hao Helen Zhang · Computational Statistics & Data Analysis · 2008 · 240 citations

New Chi-square Approximation, Approximation Theory, Non-central Normal Variables +1