Karhunen Loeve Basis
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Compressão de sinais de eletrocardiograma utilizando análise de componentes independentes / COMPRESSION OF ELETROCARDIOGRAMA SIGNALS USING ANALYSIS OF INDEPENDENT COMPONENTS
The continuing demand for high performance and low cost electrocardiogram processing systems have required the elaboration of even more efficient and reliable ECG compression techniques. The objective of this work is to evaluate the performance of an electrocardiogram (ECG) compression algorithm based on independent components analysis (ICA). To each of the
Publicado em: 2006
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2. ANÁLISE DE VIBRAÇÕES DE SISTEMAS LINEARES E NÃO-LINEARES NO CONTEXTO DA FORMULAÇÃO FRACA, ANÁLISE MODAL E DECOMPOSIÇÃO DE KARHUNEN-LOÈVE / VIBRATION ANALYSIS OF LINEAR AND NON-LINEAR SYSTEMS IN THE CONTEXT OF WEAK-FORMULATION, MODAL ANALYSIS AND KARHUNEN-LOÈVEN BASIS
Vibration Analysis is treated in the context of weak formulation. A continuous system is formulated in the Hilbert space and one base is selected to project the dynamics. An approximation scheme is guaranteed by increasing the number of functions in the base used to represent the response. This is the idea behind methods like the Finite Element Method and As
Publicado em: 2005
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3. Predição não-linear de series temporais usando redes neurais RBF por decomposição em componentes principais
This thesis proposes a new technique for non-linear time series forecasting based upon Radial Basis Function Neural Networks and the Karhunen-Loeve Transform. A significant performance improvement is obtained with the novel technique in comparison with usual prediction methods. By obtaining the neural network centers from the data set sub-spaces - or data se
Publicado em: 2001