Table 8.

Training and testing times of architectures. Training times in hours and minutes; Test times are shown in seconds.

Model	Application1		Application2		Application3		Application4
	Train time (hr.min.)	Test time (s.)	Train time (hr.min.)	Test time (s.)	Train time (hr.min.)	Test time (s.)	Train time (hr.min.)	Test time (s.)
DenseNet	0.53	1	1.18	2	5.00	6	6.10	7
AlexNet	0.53	1	1.16	1	4.50	3	6.04	4
ResNet	1.10	2	1.50	3	6.56	8	7.36	10
CspNet [80]	1.30	2	1.46	3	6.00	7	8.20	9
VGG16	1.07	3	1.30	3	7.50	18	9.13	19
VGG19	1.14	3	1.33	4	8.16	19	9.23	21
CovXNet [42]	5.05	7	6.05	8	15.33	26	18.33	29
CoroNet [40]	1.20	2	1.43	2	6.33	5	7.50	7
CovidXrayNet [41]	1.10	2	1.43	3	8.33	12	9.13	15
DarkCovidNet [39]	1.18	2	1.48	2	7.54	13	8.43	15
Proposed (CovidDWNet)	1.16	2	1.45	3	7.24	8	8.32	11