Elias S. Helou

Publication Activity (10 Years)

Years Active: 2013-2023
Publications (10 Years): 11

Top Topics

Optimization Problems

Parameter Selection

Tomographic Image Reconstruction

Top Venues

IEEE Trans. Image Process.

IEEE J. Sel. Top. Signal Process.

Publications

Elias S. Helou, Sandra A. Santos, Lucas E. A. Simões
A primal nonsmooth reformulation for bilevel optimization problems. Math. Program. 198 (2) (2023)
Elias S. Helou, Sandra A. Santos, Lucas E. A. Simões
Unbiased Bregman-Risk Estimators: Application to Regularization Parameter Selection in Tomographic Image Reconstruction. CoRR (2021)
Yair Censor, Edgar Garduño, Elias S. Helou, Gabor T. Herman
Derivative-free superiorization: principle and algorithm. Numer. Algorithms 88 (1) (2021)
Elias S. Helou, Marcelo V. W. Zibetti, Gabor T. Herman
Fast Proximal Gradient Methods for Nonsmooth Convex Optimization for Tomographic Image Reconstruction. CoRR (2020)
Elias S. Helou, Sandra A. Santos, Lucas E. A. Simões
A New Sequential Optimality Condition for Constrained Nonsmooth Optimization. SIAM J. Optim. 30 (2) (2020)
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) (2020)
R. M. Oliveira, Elias S. Helou, Eduardo F. Costa
String-averaging incremental stochastic subgradient algorithms. Optim. Methods Softw. 34 (3) (2019)
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 (2019)
Eduardo X. Miqueles, Nikolay A. Koshev, Elias S. Helou
A Backprojection Slice Theorem for Tomographic Reconstruction. IEEE Trans. Image Process. 27 (2) (2018)
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) (2017)
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) (2016)
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)
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) (2014)
Fabiano Petronetto, Afonso Paiva, Elias S. Helou, David E. Stewart, Luis Gustavo Nonato
Mesh-Free Discrete Laplace-Beltrami Operator. Comput. Graph. Forum 32 (6) (2013)