An Effective LSTM Recurrent Network to Detect Arrhythmia on Imbalanced ECG Dataset

Table 6

LSTM network classification results on the testing set using two different loss methods.

Cost function	ACC (%)	RE (%)	SP (%)	PR (%)	F1 (%)
Cross entropy	98.70	98.70	98.05	98.75	98.36
Focal loss ()	99.26	99.26	99.14	99.30	99.27