Artificial Intelligence-Based Classification of Chest X-Ray Images into COVID-19 and Other Infectious Diseases

Table 4

Performance of combined models on training, internal validation, and external validation images.

Sr. No.	Name of the model	Results of the internal validation			Results of the external validation (using all test set images combined)
	Model type	Training accuracy ()	Validation accuracy ()	Validation loss	Normal ()	COVID-19 ()	New COVID-19 ()	Non-COVID-19 ()	Pneumonia ()	TB ()
1	Combined model 1 (24 epochs)	100	93.8	0.126	73.63	56.92	42.62	53.85	96.39	75.38
2	Combined model 2 (49 epochs)	100	100	0.015	86.26	65.38	43.59	42.31	96.15	73.08
3	Combined model 3 (101 epochs)	100	93.8	0.524	85.71	70.77	51.28	51.92	93.99	74.62