Short-segment heart sound classification using an ensemble of deep convolutional neural networks

Autor:	Noman, Fuad, Ting, Chee-Ming, Salleh, Sh-Hussain, Ombao, Hernando
Rok vydání:	2018
Předmět:	Computer Science - Sound Computer Science - Machine Learning Electrical Engineering and Systems Science - Audio and Speech Processing Electrical Engineering and Systems Science - Signal Processing Statistics - Machine Learning
Druh dokumentu:	Working Paper
DOI:	10.1109/ICASSP.2019.8682668
Popis:	This paper proposes a framework based on deep convolutional neural networks (CNNs) for automatic heart sound classification using short-segments of individual heart beats. We design a 1D-CNN that directly learns features from raw heart-sound signals, and a 2D-CNN that takes inputs of two- dimensional time-frequency feature maps based on Mel-frequency cepstral coefficients (MFCC). We further develop a time-frequency CNN ensemble (TF-ECNN) combining the 1D-CNN and 2D-CNN based on score-level fusion of the class probabilities. On the large PhysioNet CinC challenge 2016 database, the proposed CNN models outperformed traditional classifiers based on support vector machine and hidden Markov models with various hand-crafted time- and frequency-domain features. Best classification scores with 89.22% accuracy and 89.94% sensitivity were achieved by the ECNN, and 91.55% specificity and 88.82% modified accuracy by the 2D-CNN alone on the test set. Comment: 8 pages, 1 figure, conference
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1810.11573 Zobrazit plný text záznamu View this record from Arxiv