Ecg Classification Using Higher Order Spectral Estimation and Deep Learning Techniques

Abstract

Electrocardiogram (ECG) is one of the most important and effective tools in clinical routine to assess the cardiac arrhythmias. In this research higherorder spectral estimations, bispectrum and third-order cumulants, are evaluated, saved, and pre-trained using convolutional neural networks (CNN) algorithm. CNN is transferred in this study to carry out automatic ECG arrhythmia diagnostics after employing the higher-order spectral algorithms. Transfer learning strategies are applied on pre-trained convolutional neural network, namely AlexNet and GoogleNet, to carry out the final classification. Five different arrhythmias of ECG waveform are chosen from the MIT-BIH arrhythmia database to evaluate the proposed approach. The main contribution of this study is to utilize the pre-trained convolutional neural networks with a combination of higher-order spectral estimations of arrhythmias ECG signal to implement a reliable and applicable deep learning classification technique. The Highest average accuracy obtained is 97.8 % when using third cumulants and GoogleNet. As is evident from these results, the proposed approach is an efficient automatic cardiac arrhythmia classification method and provides a reliable recognition system based on well-established CNN architectures instead of training a deep CNN from scratch.

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“…These measures indicate how precisely the x-ray chest images are diagnosed [26]. To compute these measures, four different types of statistical values are computed which are TP, FP, FN and TN [27,28]. Then using these values, the mentioned measurements have been computed as follows: Training Accuracy and Loss for Different Input Sizes…”

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“…These measures indicate how precisely the x-ray chest images are diagnosed [26]. To compute these measures, four different types of statistical values are computed which are TP, FP, FN and TN [27,28]. Then using these values, the mentioned measurements have been computed as follows:…”