Table 7. Accuracy comparisons of proposed CXRVN architecture against Google net, VGG-16, Resnet-18, and Alex net on Dataset-2 and Dataset-3.

Method name	Class label	Google net	VGG-16	Res net-18	Alex net	Proposed CXRVN
Dataset-2 2-Classes	Normal COVID-19	92.20	90.75	93.20	91.10	97.85
Dataset-3 3-Classes	Normal COVID-19 pneumonia	91.01	89.35	91.65	92.21	93.06