109 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
3 papers · 1 filter
A Note on the Convergence of ADMM for Linearly Constrained Convex Optimization Problems
Liang Chen, Defeng Sun, Kim-Chuan Toh
This note serves two purposes. Firstly, we construct a counterexample to show that the statement on the convergence of the alternating direction method of multipliers (ADMM) for so…
An Efficient Inexact Symmetric Gauss-Seidel Based Majorized ADMM for High-Dimensional Convex Composite Conic Programming
Liang Chen, Defeng Sun, Kim-Chuan Toh
In this paper, we propose an inexact multi-block ADMM-type first-order method for solving a class of high-dimensional convex composite conic optimization problems to moderate accur…
A Rank-Corrected Procedure for Matrix Completion with Fixed Basis Coefficients
Weimin Miao, Shaohua Pan, Defeng Sun
For the problems of low-rank matrix completion, the efficiency of the widely-used nuclear norm technique may be challenged under many circumstances, especially when certain basis c…