83 citations · 181 across the 6 of their papers we have counts for
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cs.LG2023
Inhomogeneous graph trend filtering via a l2,0 cardinality penalty
Xiaoqing Huang, Andersen Ang, Kun Huang +2
We study estimation of piecewise smooth signals over a graph. We propose a -norm penalized Graph Trend Filtering (GTF) model to estimate piecewise smooth graph signals…
math.OC2023★ 2 cited
MGProx: A nonsmooth multigrid proximal gradient method with adaptive restriction for strongly convex optimization
Andersen Ang, Hans De Sterck, Stephen Vavasis
We study the combination of proximal gradient descent with multigrid for solving a class of possibly nonsmooth strongly convex optimization problems. We propose a multigrid proxima…