COVID-19(10) feature(7) Accuracy(7) independent(6) Convolutional neural network(5) deep learning(5) deep(4) approach(4) approach(4) applied(4) CNN(4) Analysis(4) Evidence(4) performed(4) Features(4) Classifier(4) collected(3) 1EVowel /e/ vocal task(3) COVID-19 pandemic(3) adopted(3) Cough vocal task(3) Random forest(3) CFSCorrelation-based Feature Selection(3) real time(3) detection(3) Patient(3) ROCReceiver-Operating Curve(3) MFCCMel-frequency Cepstral Coefficients(3) develop(3) individual(3)