Table 18.

Hyperparameters chosen with random search for each architecture.

	lr	random rotation	brightness	horizontal flip	center crop	contrast
COVID-19 Image Data Collection
ResNet-18	0.001	+	+
ResNet-50	0.001	+	+	+
DenseNet-169	0.0001	+	+	+
WideResNet-50	0.00001	+	+	+
DenseNet-121+	0.0001	+	+
COVID-19 CT & Radiograph Image Data Stock binary X-ray
ResNet-18	0.001
ResNet-50	0.001
DenseNet-169	0.00001
WideResNet-50	0.0001		+	+		+
DenseNet-121+	0.001	+	+			+