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Efficient Covid-19 disease diagnosis based on cough signal processing and supervised machine learning

Bensid Khaled, Lati Abdelhai, Benlamoudi Azeddine, Ghouar Brahim Elkhalil, Senoussi Mohammed Larbi

Diagnostyka

2023

Vol. 24, No. 1

art. no. 2023103

The spread of the coronavirus has claimed the lives of millions worldwide, which led to the emergence of an economic and health crisis at the global level, which prompted many researchers to submit proposals for early diagnosis of the coronavirus to limit its spread. In this work, we propose an automated system to detect COVID-19 based on the cough as one of the most important infection indicators. Several studies have shown that coughing accounts for 65% of the total symptoms of infection. The proposed system is mainly based on three main steps: first, cough signal detection and segmentation; second, cough signal extraction; and third, three techniques of supervised machine learning-based classification: Support Vector Machine (SVM), KNearest Neighbours (KNN), and Decision Tree (DT). Our proposed system showed high performance through good accuracy values, where the best accuracy for classifying female coughs was 99.6% using KNN and 88% for males using SVM.