4 citations · 8 across the 4 of their papers we have counts for
4 papers
Anderson Accelerated Operator Splitting Methods for Convex-nonconvex Regularized Problems
Qiang Heng, Xiaoqian Liu, Eric C. Chi
Convex-nonconvex (CNC) regularization is a novel paradigm that employs a nonconvex penalty function while maintaining the convexity of the entire objective function. It has been su…
A Majorization-Minimization Gauss-Newton Method for 1-Bit Matrix Completion
Xiaoqian Liu, Xu Han, Eric C. Chi +1
In 1-bit matrix completion, the aim is to estimate an underlying low-rank matrix from a partial set of binary observations. We propose a novel method for 1-bit matrix completion ca…
A Sharper Computational Tool for Regression
Xiaoqian Liu, Eric C. Chi, Kenneth Lange
Building on previous research of Chi and Chi (2022), the current paper revisits estimation in robust structured regression under the criterion. We adopt the ma…
A Convex-Nonconvex Strategy for Grouped Variable Selection
Xiaoqian Liu, Aaron J. Molstad, Eric C. Chi
This paper deals with the grouped variable selection problem. A widely used strategy is to augment the negative log-likelihood function with a sparsity-promoting penalty. Existing…