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ORCIDElias Salomão Helou Neto
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2020 – today
- 2023
[j18]Elias S. Helou
, Sandra A. Santos, Lucas E. A. Simões:
A primal nonsmooth reformulation for bilevel optimization problems. Math. Program. 198(2): 1381-1409 (2023)- [j17]Rafael Massambone, Eduardo Fontoura Costa, Elias Salomão Helou:
A Markovian Incremental Stochastic Subgradient Algorithm. IEEE Trans. Autom. Control. 68(1): 124-139 (2023) - 2022
- [j16]Arthur Nicolaus Fendrich, Elias Salomão Helou Neto, Lucas Esperancini Moreira e Moreira, Durval Dourado Neto:
A scalable method for the estimation of spatial disaggregation models. Comput. Geosci. 166: 105161 (2022) - 2021
- [j15]Yair Censor, Edgar Garduño, Elias S. Helou, Gabor T. Herman:
Derivative-free superiorization: principle and algorithm. Numer. Algorithms 88(1): 227-248 (2021) - [i4]Elias S. Helou, Sandra A. Santos, Lucas E. A. Simões:
Unbiased Bregman-Risk Estimators: Application to Regularization Parameter Selection in Tomographic Image Reconstruction. CoRR abs/2109.08784 (2021) - 2020
- [j14]Elias S. Helou, Sandra A. Santos, Lucas E. A. Simões:
Analysis of a New Sequential Optimality Condition Applied to Mathematical Programs with Equilibrium Constraints. J. Optim. Theory Appl. 185(2): 433-447 (2020) - [j13]Elias S. Helou, Sandra A. Santos, Lucas E. A. Simões:
A New Sequential Optimality Condition for Constrained Nonsmooth Optimization. SIAM J. Optim. 30(2): 1610-1637 (2020) - [i3]Elias S. Helou, Marcelo V. W. Zibetti, Gabor T. Herman:
Fast Proximal Gradient Methods for Nonsmooth Convex Optimization for Tomographic Image Reconstruction. CoRR abs/2008.09720 (2020)
2010 – 2019
- 2019
- [j12]R. M. Oliveira, Elias S. Helou, Eduardo F. Costa:
String-averaging incremental stochastic subgradient algorithms. Optim. Methods Softw. 34(3): 665-692 (2019) - [j11]Marcelo Victor Wüst Zibetti, Elias Salomão Helou, Ravinder R. Regatte, Gabor T. Herman:
Monotone FISTA With Variable Acceleration for Compressed Sensing Magnetic Resonance Imaging. IEEE Trans. Computational Imaging 5(1): 109-119 (2019) - [i2]Elias S. Helou, Marcelo V. W. Zibetti, Leon Axel, Kai Tobias Block, Ravinder R. Regatte, Gabor T. Herman:
The Discrete Fourier Transform for Golden Angle Linogram Sampling. CoRR abs/1904.01152 (2019) - 2018
- [j10]Elias Salomão Helou, Sandra A. Santos, Lucas E. A. Simões:
A fast gradient and function sampling method for finite-max functions. Comput. Optim. Appl. 71(3): 673-717 (2018) - [j9]Eduardo X. Miqueles, Nikolay A. Koshev, Elias S. Helou:
A Backprojection Slice Theorem for Tomographic Reconstruction. IEEE Trans. Image Process. 27(2): 894-906 (2018) - 2017
- [j8]Elias Salomão Helou, Sandra A. Santos, Lucas E. A. Simões:
On the Local Convergence Analysis of the Gradient Sampling Method for Finite Max-Functions. J. Optim. Theory Appl. 175(1): 137-157 (2017) - [j7]Marcelo Victor Wüst Zibetti, Elias S. Helou, Daniel R. Pipa:
Accelerating Overrelaxed and Monotone Fast Iterative Shrinkage-Thresholding Algorithms With Line Search for Sparse Reconstructions. IEEE Trans. Image Process. 26(7): 3569-3578 (2017) - 2016
- [j6]Moacir Ponti, Elias S. Helou, Paulo Jorge S. G. Ferreira, Nelson D. A. Mascarenhas:
Image Restoration Using Gradient Iteration and Constraints for Band Extrapolation. IEEE J. Sel. Top. Signal Process. 10(1): 71-80 (2016) - [j5]Elias Salomão Helou, Sandra A. Santos, Lucas E. A. Simões:
On the differentiability check in gradient sampling methods. Optim. Methods Softw. 31(5): 983-1007 (2016) - 2015
- [c2]Marcelo Victor Wüst Zibetti, Elias S. Helou, Eduardo X. Miqueles, Alvaro R. De Pierro:
Accelerating the over-relaxed iterative shrinkage-thresholding algorithms with fast and exact line search for high resolution tomographic image reconstruction. ICIP 2015: 2305-2308 - 2014
- [j4]Erick Gomez Nieto, Frizzi San Roman, Paulo A. Pagliosa, Wallace Casaca, Elias S. Helou, Maria Cristina Ferreira de Oliveira, Luis Gustavo Nonato:
Similarity Preserving Snippet-Based Visualization of Web Search Results. IEEE Trans. Vis. Comput. Graph. 20(3): 457-470 (2014) - [i1]Elias Salomão Helou Neto, Yair Censor, Tai-Been Chen, I-Liang Chern, Alvaro R. De Pierro, Ming Jiang, Henry Horng-Shing Lu:
String-Averaging Expectation-Maximization for Maximum Likelihood Estimation in Emission Tomography. CoRR abs/1402.2455 (2014) - 2013
- [j3]Fabiano Petronetto, Afonso Paiva, Elias S. Helou, David E. Stewart, Luis Gustavo Nonato:
Mesh-Free Discrete Laplace-Beltrami Operator. Comput. Graph. Forum 32(6): 214-226 (2013)
2000 – 2009
- 2009
- [b1]Elias Salomão Helou Neto:
Incremental algorithms with applications to computerized tomography. University of Campinas, Brazil, 2009 - [j2]Alvaro R. De Pierro, Elias Salomão Helou Neto:
From convex feasibility to convex constrained optimization using block action projection methods and underrelaxation. Int. Trans. Oper. Res. 16(4): 495-504 (2009) - [j1]Elias Salomão Helou Neto, Alvaro R. De Pierro:
Incremental Subgradients for Constrained Convex Optimization: A Unified Framework and New Methods. SIAM J. Optim. 20(3): 1547-1572 (2009) - 2005
- [c1]Elias Salomão Helou Neto, Alvaro R. De Pierro:
On the Effect of Relaxation in the Convergence and Quality of Statistical Image Reconstruction for Emission Tomography Using Block-Iterative Algorithms. SIBGRAPI 2005: 13-20
Coauthor Index
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