102 citations · 320 across the 34 of their papers we have counts for
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math.OC2015★ 2 cited
Performance of First- and Second-Order Methods for L1-Regularized Least Squares Problems
Kimon Fountoulakis, Jacek Gondzio
We study the performance of first- and second-order optimization methods for l1-regularized sparse least-squares problems as the conditioning of the problem changes and the dimensi…
math.OC2015
A Preconditioner for a Primal-Dual Newton Conjugate Gradients Method for Compressed Sensing Problems
Ioannis Dassios, Kimon Fountoulakis, Jacek Gondzio
In this paper we are concerned with the solution of Compressed Sensing (CS) problems where the signals to be recovered are sparse in coherent and redundant dictionaries. We extend…