19 citations · 66 across the 12 of their papers we have counts for
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math.NA2021
Unbiased Bregman-Risk Estimators: Application to Regularization Parameter Selection in Tomographic Image Reconstruction
Elias S. Helou, Sandra A. Santos, Lucas E. A. Simões
Unbiased estimators are introduced for averaged Bregman divergences which generalize Stein's Unbiased (Predictive) Risk Estimator, and the minimization of these estimators is propo…
math.OC2021
A Markovian Incremental Stochastic Subgradient Algorithm
Rafael Massambone, Eduardo F. Costa, Elias S. Helou
A stochastic incremental subgradient algorithm for the minimization of a sum of convex functions is introduced. The method sequentially uses partial subgradient information and the…