<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Cardiovascular Disease (CVD) is considered as one of the principal causes of death in the world. Over recent years, this field of study has attracted researchers’ attention to investigate heart sounds’ patterns for disease diagnostics. In this study, an approach is proposed for normal/abnormal heart sound classification on the Physionet challenge 2016 dataset. For the first time, a fixed length feature vector; called i-vector; is extracted from each heart sound using Mel Frequency Cepstral Coefficient (MFCC) features. Afterwards, Principal Component Analysis (PCA) transform and Variational Autoencoder (VAE) are applied on the i-vector to achieve dimension reduction. Eventually, the reduced size vector is fed to Gaussian Mixture Models (GMMs) and Support Vector Machine (SVM) for classification purpose. Experimental results demonstrate the proposed method could achieve a performance improvement of 16% based on Modified Accuracy (MAcc) compared with the baseline system on the Physionet2016 dataset.</p></abstract>

Cardiovascular Disease (CVD) is considered as one of the principal causes of death in the world. Over recent years, this field of study has attracted researchers’ attention to investigate heart sounds’ patterns for disease diagnostics. In this study, an approach is proposed for normal/abnormal heart sound classification on the Physionet challenge 2016 dataset. For the first time, a fixed length feature vector; called i-vector; is extracted from each heart sound using Mel Frequency Cepstral Coefficient (MFCC) features. Afterwards, Principal Component Analysis (PCA) transform and Variational Autoencoder (VAE) are applied on the i-vector to achieve dimension reduction. Eventually, the reduced size vector is fed to Gaussian Mixture Models (GMMs) and Support Vector Machine (SVM) for classification purpose. Experimental results demonstrate the proposed method could achieve a performance improvement of 16% based on Modified Accuracy (MAcc) compared with the baseline system on the Physionet2016 dataset.

Statistical feature embedding for heart sound classification

Department of Electrical, Electronic and Computer Engineering

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Statistical feature embedding for heart sound classification"}

Cardiovascular Disease (CVD) is considered as one of the principal causes of death in the world. Over recent years, this field of study has attracted...

Statistical feature embedding for heart sound classification

Published Online: Oct 21, 2019

Page range: 259 - 272

Received: Jul 24, 2019

DOI: https://doi.org/10.2478/jee-2019-0056

Keywords
heart sound classification, i-vector, Gaussian mixture models, support vector machine, principal component analysis, variational autoencoders

© 2019 Mohammad Adiban et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Statistical feature embedding for heart sound classification

Published Online: Oct 21, 2019

Page range: 259 - 272

Received: Jul 24, 2019

DOI: https://doi.org/10.2478/jee-2019-0056

Keywordsheart sound classification, i-vector, Gaussian mixture models, support vector machine, principal component analysis, variational autoencoders

© 2019 Mohammad Adiban et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
heart sound classification, i-vector, Gaussian mixture models, support vector machine, principal component analysis, variational autoencoders