id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_yhmhpetxjjertmjquf7qfk2lqm	I Turkoglu	An expert system for diagnosis of the heart valve diseases	2002	8	.pdf	application/pdf	5054	498	57	In this paper, an expert diagnosis system is presented for interpretation of the Doppler signals of the heart valve diseases based on the This paper especially deals with the feature extraction from measured Doppler signal waveforms at the heart valve using Wavelet transforms and short time Fourier transform methods are used to feature extract from the Doppler signals on Wavelet entropy method is applied to these features. Keywords: Pattern recognition; Doppler heart sounds; Heart valves; Feature extraction; Wavelet decomposition; Spectrograms; Neural networks; Expert classify Doppler signals using pattern recognition (Chan, Doppler heart signals, wavelet decomposition, STFT, signals in the diagnosis of heart valve diseases is time wavelet decomposition sampled at different frequencies at every level or stage. The Doppler signals of the heart valves decomposition of the Doppler sound signal of the heart The wavelet entropy of the DHS signal. wavelet packet decomposition for heart sound signals.	./cache/work_yhmhpetxjjertmjquf7qfk2lqm.pdf	./txt/work_yhmhpetxjjertmjquf7qfk2lqm.txt