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. 2022 Oct 26;10:4901409. doi: 10.1109/JTEHM.2022.3217428

TABLE 6. Effect of Sampling Process on the Number of Frames in Train and Test Set.

Hypoxemia Severity	Sampling Process	Sample Number
		Train Set		Validation Set
		Before	After	Before	After
Normal	Undersampling	11692	4900	5011	2100
Moderate	Oversampling	482	5016	206	2149
Critical	Oversampling	292	4869	125	2087