2 papers
math.NA2025
A Semi-Convergent Stage-Wise Framework with Provable Global Convergence for Adaptive Total Variation Regularization
Liang Luo, Lei Zhang
Image restoration requires a careful balance between noise suppression and structure preservation. While first-order total variation (TV) regularization effectively preserves edges…
math.OC2024
A Learned Proximal Alternating Minimization Algorithm and Its Induced Network for a Class of Two-block Nonconvex and Nonsmooth Optimization
Yunmei Chen, Lezhi Liu, Lei Zhang
This work proposes a general learned proximal alternating minimization algorithm, LPAM, for solving learnable two-block nonsmooth and nonconvex optimization problems. We tackle the…