Wavelet Based Entropy
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Online hybrid modeling method with application for predicting Bauxite production indicators
Abstract In the bauxite flotation process, concentrate grade and tailings grade are key production indicators; however, they are difficult to measure online. It is also difficult to develop an effective mathematical model for the process because of the complex non-linear and uncertain relationship among the feed parameters (feed grade, pulp density, slurry p
Rem: Rev. Esc. Minas. Publicado em: 2015-12
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2. Classificação automática de gênero musical baseada em entropia e fractais / Automatic music genre classification based on entropy and fractals
A classificação automática de gênero musical tem como finalidade o conforto de ouvintes de músicas auxiliando no gerenciamento das coleções de músicas digitais. Existem sistemas que se baseiam em cabeçalhos de metadados (tais como nome de artista, gênero cadastrado, etc.) e também os que extraem parâmetros dos arquivos de música para a realizaç
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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3. A fault location method using Lamb waves and discrete wavelet transform
Non-destructive evaluation methods and signal process techniques are important steps in structural health monitoring systems to assess the structure integrity. This paper presents a method for fault location in aluminum beams based on time of flight of Lamb waves. The dynamic response signal captured from the structure was processed using the discrete wavele
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012-12
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4. Utilização de medidas de previsibilidade em sinais de voz para discriminação de patologias de laringe / Application of predictability measures to voice signals for larynx pathology differentiation
This thesis presents initial studies of the application of predictability measures to voice signal analysis. Its aim is to develop methods that are capable of differentiating healthy and pathological signals, also amongst pathologies. In order to do that, we perform an attempt to measure the uncertainty and predictability variations of the signals from the a
Publicado em: 2009
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5. Um metodo de compressão de audio baseado na codificação de Subbandas Wavelets
This work presents a method for audio compression based on wavelets sub-band quantization and coding, and proposes a coder based on that method. First, the work describes the Wavelet Transform with emphasis on the concepts of multi-resolution analyzes and their relationship with filtering processes and decomposition in sub-bands. A description of the Wavelet
Publicado em: 2001