Table 9.

Comparison of studies on COVID-19 with this study.

Models/Methods	Year	Dataset	# of classes	Overall Acc (%)
Transfer learning, Social Mimic optimization [57]	2020	Public	3	99.27
DarkCovidNet [58]	2020	Public	3	87.02
DRE-Net [59]	2020	Private	2	86
CNNs, Transfer learning [60]	2020	Private	2	89.5
COVIDetectioNet [23]	2021	Public	3	99.18
CNN, Bayesian optimization [61]	2020	Public	3	98.97
Data augmentation, Segmentation, CNN [62]	2021	Private	2	90.3
Proposed approach	2021	Private	3	99.15