TABLE 1.

Datasets.

Dataset	Type	COVID‐19	Normal	VP	Total
Three classification	Train	190	190	190	570
	Test	150	150	150	450
	Val	60	60	60	180
	Total	400	400	400	1200
Two classification	Train	190	‐	190	380
	Test	150	‐	150	300
	Val	60	‐	60	120
	Total	400	‐	400	800