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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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[en] A STUDY OF THE EFFECTS OF FORECASTING LINEAR TIME SERIES WITH NEURAL NETWORKS / [pt] UM ESTUDO DOS EFEITOS DA PREVISÃO DE SÉRIES TEMPORAIS LINEARES COM REDES NEURAISFRANCISCO CARLOS SANTANA DE AZEREDO PINTO 27 November 2002 (has links)
[pt] Esta dissertação de mestrado analisa os efeitos de
previsão
de séries temporais com redes neurais em conjunto com a
técnica de poda, denominada de Regularização Bayesiana.
Utilizam-se diversas séries simuladas cujo processo
gerador
é de fato linear para comparar as previsões feitas por
meio
de modelos auto-regressivos lineares e redes neurais.
Apresenta-se,ao final, uma comparação entre os modelos
citados acima, segundo à eficiência preditiva de
cada um. / [en] This paper studies the performance of neural networks
estimated with Bayesian regularization to model and
forecast time series where the data generations process is
in fact linear. A simulation experiment is carried out to
compare the forecast made by linear autoregressive models
and neural networks.
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