TABLE 2. The Accuracy, Sensitivity, Specificity of Case-Based COVID-19 Diagnosis of Our Method Compared to Mask-R-CNN -SVM Method.

Method	Source	Image Sets	Accuracy	Sensitivity	Specificity
Mask-R-CNN-SVM	Test	vs Lung Nodules	0.744	0.649	0.829
		vs Other Pneumonia	0.698	0.649	0.769
	External Validation	vs Other Pneumonia	0.599	0.575	0.667
		vs Without Known Lung Diseases	0.626	0.646	0.719
NCIP-Net	Test	vs Lung Nodules	0.861	0.757	0.952
		Vs Other Pneumonia	0.757	0.757	0.815
	External Validation	vs Other Pneumonia	0.744	0.713	0.861
		vs Without Known Lung Diseases	0.829	0.713	0.959

note that we used the case-based probability of 0.5 as the thresholding value to generate all of the results in this table.