Malena I. Español

activity

20142026

most citedA Discrete-to-Continuum Model of Weakly Interacting Incommensurate Two-Dimensional Lattices

13 citations · 34 across the 17 of their papers we have counts for

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Showing 2024Show all

3 papers · 1 filter

math.NA2024

Efficient Decomposition-Based Algorithms for $ℓ_{1}$ -Regularized Inverse Problems with Column-Orthogonal and Kronecker Product Matrices

Brian Sweeney, Malena I. Español, Rosemary Renaut

We consider an $ℓ_{1}$ -regularized inverse problem where both the forward and regularization operators have a Kronecker product structure. By leveraging this structure, a joint de…

math.NA2024★ 1 cited

Parameter Selection by GCV and a $χ^{2}$ test within Iterative Methods for $ℓ_{1}$ -regularized Inverse Problems

Brian Sweeney, Rosemary Renaut, Malena Español

$ℓ_{1}$ regularization is used to preserve edges or enforce sparsity in a solution to an inverse problem. We investigate the Split Bregman and the Majorization-Minimization iterat…

math.NA2024

Convergence Analysis of a Variable Projection Method for Regularized Separable Nonlinear Inverse Problems

Malena I. Español, Gabriela Jeronimo

Variable projection methods prove highly efficient in solving separable nonlinear least squares problems by transforming them into a reduced nonlinear least squares problem, typica…

Efficient Decomposition-Based Algorithms for ℓ1​-Regularized Inverse Problems with Column-Orthogonal and Kronecker Product Matrices

Parameter Selection by GCV and a χ2 test within Iterative Methods for ℓ1​-regularized Inverse Problems

Convergence Analysis of a Variable Projection Method for Regularized Separable Nonlinear Inverse Problems

Efficient Decomposition-Based Algorithms for $ℓ_{1}$ -Regularized Inverse Problems with Column-Orthogonal and Kronecker Product Matrices

Parameter Selection by GCV and a $χ^{2}$ test within Iterative Methods for $ℓ_{1}$ -regularized Inverse Problems