Detection of Atrial Fibrillation with Custom Designed Wavelet-based Convolutional Autoencoder

Abstract

Remote monitoring of patients is of great importance in terms of early diagnosis of diseases and improving people's quality of life. With the rapid development of deep learning techniques wearable health technologies have leaped forward. This has made the automatic diagnosis even more important. In this study we provide a deep learning approach for classifying Atrial Fibrillation (AF) arrhythmia that uses a customized wavelet-based convolutional autoencoder (WCAE) model. WCAE is employed as an anomaly detector which combines the time-frequency domain examination ability of wavelet and the data-driven feature learning capability of convolutional autoencoders. The proposed approach received average scores of 95.45% 99.99% 90.90% and 95.23% for accuracy precision recall and F1 respectively on a large selection of publicly available datasets. The outcomes of the experiments demonstrate the significance of using deep learning-based models in diagnosing AF. Moreover it is observed that utilization of wavelet methods along with autoencoder model has a great potential for biomedical signal processing systems.