3 papers
math.NA2024
Efficient Decomposition-Based Algorithms for -Regularized Inverse Problems with Column-Orthogonal and Kronecker Product Matrices
Brian Sweeney, Malena I. Español, Rosemary Renaut
We consider an -regularized inverse problem where both the forward and regularization operators have a Kronecker product structure. By leveraging this structure, a joint de…
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…
math.OC2023
Box-Constrained Minimization in Single-View Tomographic Reconstruction
Sean Breckling, Malena I. Español, Victoria Uribe +3
We present a note on the implementation and efficacy of a box-constrained regularization in numerical optimization approaches to performing tomographic reconstruction fro…