Search Results for author: Marcelo Ladeira

Found 7 papers, 4 papers with code

Multiobjective Evolutionary Component Effect on Algorithm behavior

no code implementations31 Jul 2023 Yuri Lavinas, Marcelo Ladeira, Gabriela Ochoa, Claus Aranha

In terms of decision space behavior, we see a diverse set of the trajectories of the STNs in the analytical artificial problems.

Evolutionary Algorithms

Component-wise Analysis of Automatically Designed Multiobjective Algorithms on Constrained Problems

1 code implementation25 Mar 2022 Yuri Lavinas, Marcelo Ladeira, Gabriela Ochoa, Claus Aranha

This study introduces a new methodology to investigate the effects of the final configuration of an automatically designed algorithm.

Faster Convergence in Multi-Objective Optimization Algorithms Based on Decomposition

1 code implementation21 Dec 2021 Yuri Lavinas, Marcelo Ladeira, Claus Aranha

MOEA/D with Partial Update can mitigate common problems related to population size choice with better convergence speed in most MOPs, as shown by the results of hypervolume and number of unique non-dominated solutions, the anytime performance and Empirical Attainment Function indicates.

Exploring Constraint Handling Techniques in Real-world Problems on MOEA/D with Limited Budget of Evaluations

1 code implementation19 Nov 2020 Felipe Vaz, Yuri Lavinas, Claus Aranha, Marcelo Ladeira

Finding good solutions for Multi-objective Optimization (MOPs) Problems is considered a hard problem, especially when considering MOPs with constraints.

MOEA/D with Random Partial Update Strategy

1 code implementation20 Jan 2020 Yuri Lavinas, Claus Aranha, Marcelo Ladeira, Felipe Campelo

Recent studies on resource allocation suggest that some subproblems are more important than others in the context of the MOEA/D, and that focusing on the most relevant ones can consistently improve the performance of that algorithm.

Transfer Learning for Brain Tumor Segmentation

no code implementations28 Dec 2019 Jonas Wacker, Marcelo Ladeira, José Eduardo Vaz Nascimento

Therefore, there is a substantial demand for automatic image segmentation algorithms that produce a reliable and accurate segmentation of various brain tissue types.

Brain Tumor Segmentation Image Segmentation +3

Classification of EEG Signals using Genetic Programming for Feature Construction

no code implementations11 Jun 2019 Icaro Marcelino Miranda, Claus Aranha, Marcelo Ladeira

The analysis of electroencephalogram (EEG) waves is of critical importance for the diagnosis of sleep disorders, such as sleep apnea and insomnia, besides that, seizures, epilepsy, head injuries, dizziness, headaches and brain tumors.

Classification Dimensionality Reduction +3

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