289 citations · 518 across the 37 of their papers we have counts for
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Iterative Hard Thresholding Methods for Regularized Convex Cone Programming
Zhaosong Lu
In this paper we consider regularized convex cone programming problems. In particular, we first propose an iterative hard thresholding (IHT) method and its variant for solvin…
Sequential Convex Programming Methods for A Class of Structured Nonlinear Programming
Zhaosong Lu
In this paper we study a broad class of structured nonlinear programming (SNLP) problems. In particular, we first establish the first-order optimality conditions for them. Then we…
Iterative Reweighted Minimization Methods for Regularized Unconstrained Nonlinear Programming
Zhaosong Lu
In this paper we study general regularized unconstrained minimization problems. In particular, we derive lower bounds for nonzero entries of first- and second-order stationar…
Fused Multiple Graphical Lasso
Sen Yang, Zhaosong Lu, Xiaotong Shen +2
In this paper, we consider the problem of estimating multiple graphical models simultaneously using the fused lasso penalty, which encourages adjacent graphs to share similar struc…
Sparse Approximation via Penalty Decomposition Methods
Zhaosong Lu, Yong Zhang
In this paper we consider sparse approximation problems, that is, general minimization problems with the -"norm" of a vector being a part of constraints or objective fun…