Competitive Neural Networks
Mostrando 13-20 de 20 artigos, teses e dissertações.
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13. Especificação de uma ferramenta de previsão de demanda para equipamentos de infra-estrutura de telecomunicações
Over the past decades the telecommunication market hás been more and more deregulated and competitive, while more and more telecommunicatios techonologies are available for the users. Companies operating in these markets have to rely on demand forecasts to justify their level of investmants and ensure the capacity availability at the right time. With so man
Publicado em: 2008
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14. Reconstrução de superfícies 3D a partir de nuvens de pontos usando redes neurais auto-organizáveis
This work consists of the implementation of a 3D surface reconstruction algorithm from point clouds, using Self-Organizing Neural Networks. Among the Neural Networks the SOM (Self-Organizing Map) is distinguished, since it is a self-organized model based on competitive learning. The proposed system is based on the GCC (Growing Cell Structures), a self-organi
Publicado em: 2007
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15. AvaliaÃÃo de redes neurais competitivas em tarefas de quantizaÃÃo vetorial:um estudo comparativo / Evaluation of competitive neural networks in tasks of vector quantization (VQ): a comparative study
Esta dissertaÃÃo tem como principal meta realizar um estudo comparativo do desempenho de algoritmos de redes neurais competitivas nÃo-supervisionadas em problemas de quantizaÃÃo vetorial (QV) e aplicaÃÃes correlatas, tais como anÃlise de agrupamentos (clustering) e compressÃo de imagens. A motivaÃÃo para tanto parte da percepÃÃo de que hà uma r
Publicado em: 2007
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16. Determination of inhibition in the enzymatic hydrolysis of cellobiose using hybrid neural modeling
Neural networks and hybrid models were used to study substrate and product inhibition observed in the enzymatic hydrolysis of cellobiose at 40ºC, 50ºC and 55ºC, pH 4.8, using cellobiose solutions with or without the addition of exogenous glucose. Firstly, the initial velocity method and nonlinear fitting with StatisticaÒ were use
Brazilian Journal of Chemical Engineering. Publicado em: 2005-03
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17. IDENTIFICAÇÃO DE GRUPOS ESTRATÉGICOS: UMA ABORDAGEM UTILIZANDO A VISÃO RESOURCE-BASED E SISTEMAS NEURO-FUZZY / STRATEGIC GROUPS: ARESOURCE-BASED VIEW AND NEURO-FUZZY SYSTEMS APPROACH
Since its has introduced, in the beginning of the decade of seventy, the concept of strategic groups is object of theoretical and empirical research that aims to confirm its existence, its contribution to performance evaluation and the formulation of the strategies of the firms. This text join these research, using the Resource-Based Views framework and soft
Publicado em: 2004
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18. SISTEMA PARA PREVISÃO DE ELEVAÇÃO DE TEMPERATURA EM TRANSFORMADORES DE POTÊNCIA COMBINANDO MODELOS LINEARES E REDES NEURAIS / FORECASTING TEMPERATURES IN POWER TRANSFORMERS COMBINING LINEAR MODELS AND NEURAL NETWORKS
The new competitive scenario, that came up as result of the restructuring of the Brazilian Electric Energy Sector, imposes to its agents the need of tools suitable for better resource management. On the specific case of power transformers, which represent one of the most important investment items, the optimal payback involves a suitable balance between reve
Publicado em: 2002
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19. SYNTHESIS OF ELECTRONIC CIRCUITS FOR EVOLUTIONARY COMPUTING / SÍNTESE DE CIRCUITOS ELETRÔNICOS POR COMPUTAÇÃO EVOLUTIVA
This thesis investigates the application of evolutionary computing techniques in the synthesis of electronic circuits. Evolutionary computation encompasses a particular class of algorithm which employ some aspects of natural evolution as metaphors. Particularly, most of these algorithms borrow ideas from the natural selection, genetic material recombination
Publicado em: 1999
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20. REDES NEURAIS APLICADAS AO RECONHECIMENTO DE IMAGENS BI-DIMENSIONAIS / USE OF ARTIFICIAL NEURAL NETWORKS IN THE RECOGNITION OF BI-DIMENSION IMAGES
This work investigates the use of Artificial Neural Networks in the recognition of bi-dimensional images. The work was divided in four main parts: a survey on the importance of Computational Vision and on the benefits of the application of intelligent techniques in the fiels; a survey on the structure of image recognition systems found in the literature; the
Publicado em: 1996