On the Convergence Properties of Hildreth's Quadratic Programming Algorithm. - Alfredo N. Iusem; Alvaro R. De Pierro (Math. Program., 1990)

On the convergence of Han's method for convex programming with quadratic objective. - Alfredo N. Iusem; Alvaro R. De Pierro (Math. Program., 1991)

On methods for maximum a posteriori image reconstruction with a normal prior. - Gabor T. Herman; Alvaro R. De Pierro; Neville D. Gai (J. Vis. Commun. Image Represent., 1992)

Convergence Properties of Iterative Methods for Symmetric Positive Semidefinite Linear Complementarity Problems. - Alvaro R. De Pierro; Alfredo N. Iusem (Math. Oper. Res., 1993)

On the relation between the ISRA and the EM algorithm for positron emission tomography. - Alvaro Rodolfo De Pierro (IEEE Trans. Medical Imaging, 1993)

A modified expectation maximization algorithm for penalized likelihood estimation in emission tomography. - Alvaro R. De Pierro (IEEE Trans. Medical Imaging, 1995)

On the convergence of an EM-type algorithm for penalized likelihood estimation in emission tomography. - Alvaro R. De Pierro (IEEE Trans. Medical Imaging, 1995)

A row-action alternative to the EM algorithm for maximizing likelihood in emission tomography. - Jolyon A. Browne; Alvaro R. De Pierro (IEEE Trans. Medical Imaging, 1996)

Reconstruction of a compactly supported function from the discrete sampling of its Fourier transform. - Jiahong Yin; Alvaro R. De Pierro; Musheng Wei (IEEE Trans. Signal Process., 1999)

Upper Perturbation Bounds of Weighted Projections, Weighted and Constrained Least Squares Problems. - Musheng Wei; Alvaro R. De Pierro (SIAM J. Matrix Anal. Appl., 2000)

Fast EM-like Methods for Maximum 'A Posteriori' Estimates in Emission Tomography. - Alvaro R. De Pierro; Michel E. B. Yamagishi (IEEE Trans. Medical Imaging, 2001)

Analysis for the reconstruction of a noisy signal based on orthogonal moments. - Jiahong Yin; Alvaro Rodolfo De Pierro; Musheng Wei (Appl. Math. Comput., 2002)

Error Estimates for Two Filters Based on Polynomial Interpolation for Recovering a Function from Its Fourier Coefficients. - Musheng Wei; Alvaro R. De Pierro; Jiahong Yin (Numer. Algorithms, 2004)

Simultaneous activity attenuation reconstruction in positron emission tomography via maximum likelihood and iterative methods. - Alvaro R. De Pierro; Fabiana Crepaldi (ICIP (3), 2005)

On the Effect of Relaxation in the Convergence and Quality of Statistical Image Reconstruction for Emission Tomography Using Block-Iterative Algorithms. - Elias Salomão Helou Neto; Alvaro R. De Pierro (SIBGRAPI, 2005)

Iterative methods based on polynomial interpolation filters to detect discontinuities and recover point values from Fourier data. - Musheng Wei; Alvaro R. De Pierro; Jiahong Yin (IEEE Trans. Signal Process., 2005)

Fluorescence tomography: Reconstruction by iterative methods. - Eduardo X. Miqueles; Alvaro R. De Pierro (ISBI, 2008)

Approximating Functions From Sampled Fourier Data Using Spline Pseudofilters. - Ana Gabriela Martínez; Alvaro R. De Pierro (IEEE Trans. Signal Process., 2008)

From convex feasibility to convex constrained optimization using block action projection methods and underrelaxation. - Alvaro R. De Pierro; Elias Salomão Helou Neto (Int. Trans. Oper. Res., 2009)

Preface. - Hugo D. Scolnik; Alvaro R. De Pierro; Nélida E. Echebest; Maria T. Guardarucci (Int. Trans. Oper. Res., 2009)

Incremental Subgradients for Constrained Convex Optimization: A Unified Framework and New Methods. - Elias Salomão Helou Neto; Alvaro R. De Pierro (SIAM J. Optim., 2009)

A New Distortion Model for Strong Inhomogeneity Problems in Echo-Planar MRI. - Marcelo Victor Wüst Zibetti; Alvaro R. De Pierro (IEEE Trans. Medical Imaging, 2009)

Xfct inversion by generalized ridge functions. - Eduardo X. Miqueles; Alvaro R. De Pierro (ISBI, 2010)

Separate magnitude and phase regularization in MRI with incomplete data: preliminary results. - Marcelo Victor Wüst Zibetti; Alvaro R. De Pierro (ISBI, 2010)

Iterative methods based on spline approximations to detect discontinuities from Fourier data. - Ana Gabriela Martínez; Alvaro R. De Pierro (J. Comput. Appl. Math., 2010)

C-library raft: Reconstruction algorithms for tomography. Applications to X-ray fluorescence tomography. - Eduardo X. Miqueles; Alvaro R. De Pierro (Comput. Phys. Commun., 2011)

Iterative Reconstruction in X-ray Fluorescence Tomography Based on Radon Inversion. - Eduardo X. Miqueles; Alvaro R. De Pierro (IEEE Trans. Medical Imaging, 2011)

String-Averaging Expectation-Maximization for Maximum Likelihood Estimation in Emission Tomography. - Elias Salomão Helou Neto; Yair Censor; Tai-Been Chen; I-Liang Chern; Alvaro R. De Pierro; Ming Jiang 001; Henry Horng-Shing Lu (CoRR, 2014)

Accelerating the over-relaxed iterative shrinkage-thresholding algorithms with fast and exact line search for high resolution tomographic image reconstruction. - Marcelo Victor Wüst Zibetti; Elias S. Helou; Eduardo X. Miqueles; Alvaro R. De Pierro (ICIP, 2015)

A new convergence analysis and perturbation resilience of some accelerated proximal forward-backward algorithms with errors. - Daniel Reem; Alvaro R. De Pierro (CoRR, 2015)

Fast and exact unidimensional L2-L1 optimization as an accelerator for iterative reconstruction algorithms. - Marcelo Victor Wüst Zibetti; Daniel R. Pipa; Alvaro R. De Pierro (Digit. Signal Process., 2016)

Improving compressive sensing in MRI with separate magnitude and phase priors. - Marcelo V. W. Zibetti; Alvaro R. De Pierro (Multidimens. Syst. Signal Process., 2017)

Re-examination of Bregman functions and new properties of their divergences. - Daniel Reem; Simeon Reich; Alvaro R. De Pierro (CoRR, 2018)

BISTA: a Bregmanian proximal gradient method without the global Lipschitz continuity assumption. - Daniel Reem; Simeon Reich; Alvaro R. De Pierro (CoRR, 2018)

A Telescopic Bregmanian Proximal Gradient Method Without the Global Lipschitz Continuity Assumption. - Daniel Reem; Simeon Reich; Alvaro R. De Pierro (J. Optim. Theory Appl., 2019)