Rbf Neural Networks
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Hybrid Geoid Model: Theory and Application in Brazil
Determination of the ellipsoidal height by Global Navigation Satellite Systems (GNSS) is becoming better known and used for purposes of leveling with the aid of geoid models. However, the disadvantage of this method is the quality of the geoid models, which degrade heights and limit the application of the method. In order to provide better quality in transfo
An. Acad. Bras. Ciênc.. Publicado em: 2017-09
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2. Seleção de componentes em ensembles de clasificadores multirrótulo / Component Selection in Ensembles of Multi-label Classifiers
The selection of components in ensembles of classifiers is a very common activity in the field of Machine Learning with several studies showing its effectiveness in obtaining significant gains in accuracy. However, the most studied classification task involves mutually exclusive labels (classes). The objective of this work is to present a study on the select
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/07/2012
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3. A DOE based approach for the design of RBF artificial neural networks applied to prediction of surface roughness in AISI 52100 hardened steel turning
The use of artificial neural networks for prediction in hard turning has received considerable attention in literature. An often quoted drawback of ANNs is the lack of a systematic way for the design of high performance networks. This study presents a DOE based approach for the design of ANNs of Radial Basis Function (RBF) architecture applied to surface rou
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-12
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4. A fault detection and isolation system for cooperative manipulators
The problem of fault detection and isolation (FDI) in cooperative manipulators is addressed in this paper. Four FDI procedures are developed to deal with free-swinging joint faults, locked joint faults, incorrectly measured joint position, and incorrectly measured joint velocity. Free-swinging and locked joint faults are isolated via neural networks. For eac
Sba: Controle & Automação Sociedade Brasileira de Automatica. Publicado em: 2008-12
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5. Aplicação de redes neurais artificiais na ciência e tecnologia de alimentos : estudo de casos
Artificial Neural Networks (ANNs) are a non algorithm computing method capable of solving complex problems, getting better results than mathematical methods. The artificial neural networks has been used in many areas of technology and food science, most of them in classification problems, prediction, pattern recognition and control. This study approach two d
Publicado em: 2008
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6. Application of neural networks for diagnosis of pollution in insulators of hight tension / AplicaÃÃo de redes neurais para diagnÃstico de poluiÃÃo em isoladores de alta tensÃo
Este trabalho se propÃe a apresentar uma metodologia para classicar o nÃvel de poluiÃÃo presente na superfÃcie dos isoladores aÃreos de alta tensÃo, ou seja, diagnosticar o estado do isolamento do sistema elÃtrico de transmissÃo atravÃs da tÃcnica de reconhecimento de padrÃes dos sinais de ultra-som emitidos por descargas superciais nos isoladore
Publicado em: 2008
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7. Concurrent blind channel equalization with phase transmittance rbf neural networks
This paper presents a new complex valued radial basis function (RBF) neural network (NN) with phase transmittance between the input nodes and output, which makes it suitable for channel equalization on quadrature digital modulation systems. The new Phase Transmittance RBFNN (PTRBFNN) differs from the classical complex valued RBFNN in that it does not strictl
Journal of the Brazilian Computer Society. Publicado em: 2007-03
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8. Aplicação de análises estatística e neural para reconhecimento de sinais de odores
This work investigates the use of an electronic nose prototype for prognosis of Diabetes Mellitus. The work involves five main parts: (1) building of odors database by aroma sensors; (2) an evaluation of the odors database through multivariate statistics techniques;(3) use of Multilayer Perceptron (MLP) and Radial Basis Function (RBF) Artificial Neural Netwo
Publicado em: 2007
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9. Mapa auto-organizÃvel com campo receptivo adaptativo local para segmentaÃÃo de imagens
A new self-organizing map with variable topology is introduced for image segmentation. The proposed network, called Local Adaptive Receptive Field Self-organizing Map (LARFSOM) is based on the Self-organizing Map (SOM) and Grow When Required (GWR). The model main features are: adaptive final number of nodes, variable topology, new node insertion based on sim
Publicado em: 2007
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10. Comparação estatística de performance de métodos de redes neurais para sistema de olfação biológica.
One of the human senses that has several aspects get to be elucidated is the olfactory sense. Therefore, many scientists have been studying this sense in order to better understand how does the information processing happens until the brain recognize it. There were lots of theories regarding olfactory system functioning, in which its authors try to explain h
Publicado em: 2007
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11. ProposiÃÃo e avaliaÃÃo de algoritmos de filtragem adaptativa baseados na rede de kohonen / Proposition and evaluation of the adaptive filtering algorithms basad on the kohonen
A Rede Auto-OrganizÃvel de Kohonen (Self-Organizing Map - SOM), por empregar um algoritmo de aprendizado nÃo supervisionado, vem sendo tradicionalmente aplicada na Ãrea de processamento de sinais em tarefas de quantizaÃÃo vetorial, enquanto que redes MLP (Multi-layer Perceptron) e RBF (Radial Basis Function) dominam as aplicaÃÃes que exigem a aproxima
Publicado em: 2007
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12. Modelos de dispositivos de microondas e ópticos através de redes neurais artificiais de alimentação direta
Esta dissertação contribui para o desenvolvimento de metodologias através de redes neurais artificiais de alimentação direta para a modelagem de dispositivos de microondas e ópticos. Uma revisão bibliográfica sobre as aplicações de técnicas neuro-computacionais na áreas de engenharia de microondas e óptica foi realizada. As características das
Publicado em: 2006