ECG Heartbeat Classification Based on an Improved ResNet-18 Model

Table 3

The number of heartbeats, retrieved from the MIT-BIH database and used in the experiments, for each AAMI heartbeat class.

AAMI heartbeat class	Number of heartbeats retrieved from MIT-BIH	Number of MIT-BIH heartbeats used as a test set
N	73,564	36,727
V	24,122	12,219
S	3,880	1,835
F	586	300
Q	20	5
	102,172 (in total)	51,086 (in total)