Multiobjective Gaussian Particle Swarm Approach Applied to Multi-loop PI Controller Tuning of a Quadruple-Tank System. - Leandro dos Santos Coelho; Helon Vicente Hultmann Ayala; Nadia Nedjah; Luiza de Macedo Mourelle (Multi-Objective Swarm Intelligent System, 2010)

Mode-observability conditions for linear and nonlinear systems. - Marco Baglietto; Giorgio Battistelli; Helon Vicente Hultmann Ayala; Pietro Tesi (CDC, 2012)

Electrical Transmission Lines Design through Integer Multiobjective Particle Swarm Optimization Approach. - Helon Vicente Hultmann Ayala; Leandro dos Santos Coelho; Fabio Alessandro Guerra; Mariana Cristina Coelho (SBRN, 2012)

Tuning of PID controller based on a multiobjective genetic algorithm applied to a robotic manipulator. - Helon Vicente Hultmann Ayala; Leandro dos Santos Coelho (Expert Syst. Appl., 2012)

Population's variance-based Adaptive Differential Evolution for real parameter optimization. - Leandro dos Santos Coelho; Helon Vicente Hultmann Ayala; Roberto Zanetti Freire (IEEE Congress on Evolutionary Computation, 2013)

Cascaded free search differential evolution applied to nonlinear system identification based on correlation functions and neural networks. - Helon Vicente Hultmann Ayala; Luciano Ferreira da Cruz; Roberto Zanetti Freire; Leandro dos Santos Coelho (CICA, 2014)

Improved multiobjective particle swarm optimization for designing PID controllers applied to robotic manipulator. - Juliano Pierezan; Helon V. H. Ayala; Luciano Ferreira da Cruz; Roberto Zanetti Freire; Leandro dos Santos Coelho (CICA, 2014)

Cascaded evolutionary multiobjective identification based on correlation function statistical tests for improving velocity analyzes in swimming. - Helon Vicente Hultmann Ayala; Luciano Ferreira da Cruz; Roberto Zanetti Freire; Leandro dos Santos Coelho (MCDM, 2014)

Swim velocity profile identification through a Dynamic Self-adaptive Multiobjective Harmonic Search and RBF neural networks. - Helon V. H. Ayala; Luciano Ferreira da Cruz; Leandro dos Santos Coelho; Roberto Zanetti Freire (ESANN, 2014)

Bat-inspired optimization approach applied to jiles-atherton hysteresis parameters tuning. - Leandro dos Santos Coelho; Viviana Cocco Mariani; Helon Vicente Hultmann Ayala; Andre Mendes da Silva; Nelson Jhoe Batistela; Jean Vianei Leite (GECCO (Companion), 2014)

A self-adaptive chaotic differential evolution algorithm using gamma distribution for unconstrained global optimization. - Leandro dos Santos Coelho; Helon Vicente Hultmann Ayala; Viviana Cocco Mariani (Appl. Math. Comput., 2014)

Multi-objective differential evolution algorithm for underwater image restoration. - Camilo Sánchez-Ferreira; Helon V. H. Ayala; Leandro dos Santos Coelho; Daniel M. Muñoz; Mylène C. Q. Farias; Carlos H. Llanos (CEC, 2015)

Image thresholding segmentation based on a novel beta differential evolution approach. - Helon Vicente Hultmann Ayala; Fernando Marins dos Santos; Viviana Cocco Mariani; Leandro dos Santos Coelho (Expert Syst. Appl., 2015)

Multiobjective wind driven optimization approach applied to transformer design. - Helon Vicente Hultmann Ayala; Emerson Hochsteiner de Vasconcelos Segundo; Luiz Lebensztajn; Viviana Cocco Mariani; Leandro dos Santos Coelho (CEC, 2016)

Short-term load forecasting using wavenet ensemble approaches. - Gabriel Trierweiler Ribeiro; Marcos Cesar Gritti; Helon Vicente Hultmann Ayala; Viviana Cocco Mariani; Leandro dos Santos Coelho (IJCNN, 2016)

Nonlinear model predictive control hardware implementation with custom-precision floating point operations. - Helon V. H. Ayala; Renato Coral Sampaio; Daniel M. Muñoz; Carlos H. Llanos; Leandro dos Santos Coelho; Ricardo P. Jacobi (MED, 2016)

A SVM optimization tool and FPGA system architecture applied to NMPC. - Carlos Eduardo dos Santos; Leandro dos Santos Coelho; Renato Coral Sampaio; Ricardo P. Jacobi; Helon V. H. Ayala; Carlos H. Llanos (SBCCI, 2017)

Modeling of a 2-DOF Piezoelectric Micromanipulator at High Frequency Rates through Nonlinear Black-box System Identification. - Helon Vicente Hultmann Ayala; Micky Rakotondrabe; Leandro dos Santos Coelho (ACC, 2018)

Genetic Algorithm for Topology Optimization of an Artificial Neural Network Applied to Aircraft Turbojet Engine Identification. - F. P. Da Costa; Pedro H. L. S. P. Domingues; Roberto Zanetti Freire; Leandro dos Santos Coelho; Ali Reza Tavakolpour-Saleh; Helon V. H. Ayala (CEC, 2019)

Bio-Inspired Multiojective Tuning of PID-Controlled Antilock Braking Systems. - Pedro H. L. S. P. Domingues; Roberto Zanetti Freire; Leandro dos Santos Coelho; Helon V. H. Ayala (CEC, 2019)

Bio-inspired optimization algorithms for real underwater image restoration. - Camilo Sánchez-Ferreira; Leandro dos Santos Coelho; Helon V. H. Ayala; Mylène C. Q. Farias; Carlos H. Llanos (Signal Process. Image Commun., 2019)

Dynamic Multi-criteria Classifier Selection for Illegal Tapping Detection in Oil Pipelines. - Victor Henrique Alves Ribeiro; Pedro H. L. S. P. Domingues; Paulo Rodrigo Cavalin; Gilberto Reynoso-Meza; Helon Vicente Hultmann Ayala; Luís Fernando Alzuguir Azevedo (IJCNN, 2020)

Slip Estimation with Receding-horizon Strategy for Off-road Vehicles with Nonlinear Tire Interactions. - Lucas Sousa; Helon V. H. Ayala (MED, 2020)

Damage Detection in Composite Plates with Ultrasonic Guided-waves and Nonlinear System Identification. - Mateus Gheorghe de Castro Ribeiro; Alan Conci Kubrusly; Helon Vicente Hultmann Ayala (SSCI, 2020)

Recent Meta-Heuristics Improved by Self-Adaptation Applied to Nonlinear Model-Based Predictive Control. - Eduardo De Mendonça Mesquita; Renato Coral Sampaio; Helon Vicente Hultmann Ayala; Carlos H. Llanos (IEEE Access, 2020)

Nonlinear black-box system identification through coevolutionary algorithms and radial basis function artificial neural networks. - Helon Vicente Hultmann Ayala; Didace Habineza; Micky Rakotondrabe; Leandro dos Santos Coelho (Appl. Soft Comput., 2020)

An R library for nonlinear black-box system identification. - Helon Vicente Hultmann Ayala; Marcos Cesar Gritti; Leandro dos Santos Coelho (SoftwareX, 2020)

Three-axle vehicle lateral dynamics identification using double lane change maneuvers data. - Camila L. Pereira; Daniel H. B. de Sousa; Helon V. H. Ayala (MED, 2021)

Corrosion-like Defect Severity Estimation in Pipelines Using Convolutional Neural Networks. - Guilherme Rezende Bessa Ferreira; Paula Aida Sesini; Luis Paulo Brasil de Souza; Alan Conci Kubrusly; Helon Vicente Hultmann Ayala (SSCI, 2021)

Machine Learning-Based Corrosion-Like Defect Estimation With Shear-Horizontal Guided Waves Improved by Mode Separation. - Mateus Gheorghe de Castro Ribeiro; Alan Conci Kubrusly; Helon Vicente Hultmann Ayala; Steve Dixon (IEEE Access, 2021)

A comparison of Feature Extraction Methods for Crack and Ice Monitoring in Wind Turbine Blades: System Identification and Matrix Decomposition. - Pedro Calderano; Daniel B. De Marins; Helon V. H. Ayala (MED, 2022)

Nonlinear Tire Model Approximation Using Machine Learning for Efficient Model Predictive Control. - Lucas Castro Sousa; Helon Vicente Hultmann Ayala (IEEE Access, 2022)

Feature engineering to cope with noisy data in sparse identification. - Thaynã França; Arthur Martins Barbosa Braga; Helon Vicente Hultmann Ayala (Expert Syst. Appl., 2022)

Data-Driven Real-Time Magnetic Tracking Applied to Myokinetic Interfaces. - Sergio Andres Pertuz Mendez; Marta Gherardini; Gabriel Vidigal de Paula Santos; Daniel M. Muñoz; Helon Vicente Hultmann Ayala; Christian Cipriani (IEEE Trans. Biomed. Circuits Syst., 2022)

Black-box Identification with Static Neural Networks of Nonlinearities of an Elastomer-based Elastic Joint Manipulator. - Antonio W. C. Do Lago; Isabel Giron Camerini; Lucas Castro Sousa; Daniel H. B. de Sousa; Felipe Rebelo Lopes; Marco Antonio Meggiolaro; Helon Vicente Hultmann Ayala (IJCNN, 2023)

System Identification of an elastomeric series elastic actuator using black-box models. - Diogo Lopes Fernandes; Felipe Rebelo Lopes; Antonio W. C. Do Lago; Daniel H. B. de Sousa; Marco A. Meggiolaro; Helon Vicente Hultmann Ayala (MED, 2023)

Hierarchical control in skid steer mobile robots with nonholonomics constraints. - Anna R. S. Ferreira; Vivian Suzano Medeiros; Helon V. H. Ayala; Marco A. Meggiolaro (MED, 2023)

A Comparative Analysis of HDL and HLS for Accelerating Machine Learning based Strain Estimation with Ultrasonic Guided Waves. - Davi A. Mendes; Gabriel Reves; M. A. Pastrana; Pedro H. L. S. P. Domingues; Helon V. H. Ayala; Alan Conci Kubrusly; Daniel M. Muñoz; Carlos H. Llanos (SBESC, 2023)