33 citations · 64 across the 10 of their papers we have counts for
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stat.ML2013
The Bernstein Function: A Unifying Framework of Nonconvex Penalization in Sparse Estimation
Zhihua Zhang
In this paper we study nonconvex penalization using Bernstein functions. Since the Bernstein function is concave and nonsmooth at the origin, it can induce a class of nonconvex fun…
stat.ML2013
The Matrix Ridge Approximation: Algorithms and Applications
Zhihua Zhang
We are concerned with an approximation problem for a symmetric positive semidefinite matrix due to motivation from a class of nonlinear machine learning methods. We discuss an appr…
stat.ML2013★ 2 cited
Kinetic Energy Plus Penalty Functions for Sparse Estimation
Zhihua Zhang, Shibo Zhao, Zebang Shen +1
In this paper we propose and study a family of sparsity-inducing penalty functions. Since the penalty functions are related to the kinetic energy in special relativity, we call the…