Hidden Markov Model-based Classification of Heart Valve Disease with PCA for Dimension Reduction
Yükleniyor...
Dosyalar
Tarih
2012
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pergamon-elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, a biomedical system to classify heart sound signals obtained with a stethoscope, has been proposed. For this purpose, data from healthy subjects and those with cardiac valve disease (pulmonary stenosis (PS) or mitral stenosis (MS)) have been used to develop a diagnostic model. Feature extraction from heart sound signals has been performed. These features represent heart sound signals in the frequency domain by Discrete Fourier Transform (DFT). The obtained features have been reduced by a dimension reduction technique called principal component analysis (PCA). A discrete hidden Markov model (DHMM) has been used for classification. This proposed PCA-DHMM-based approach has been applied on two data sets (a private and a public data set). Experimental classification results show that the dimension reduction process performed by PCA has improved the classification of heart sound signals. (C) 2012 Elsevier Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
Discrete Fourier transform, Principal component analysis, Classification, Discrete hidden Markov model
Kaynak
Engineering Applications Of Artificial Intelligence
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
25
Sayı
7
Künye
Saracoglu, R., (2012). Hidden Markov Model-based Classification of Heart Valve Disease with PCA for Dimension Reduction. Engineering Applications of Artificial Intelligence. 25(7), 1523-1528.
