Premature Ventricular Contractions’ Detection Based on Active Learning

Table 5

Each strategy was trained to perform at the level of half of the original data.

	Random	Least confidence	Margin sampling	Entropy sampling	K-center-greedy	Rep-cluster	Train on the full data set
Accuracy	0.9068	0.8621	0.8485	0.8738	0.8648	0.8852	0.9385
Sensitivity	0.786	0.8470	0.8232	0.77267	0.81279	0.786	0.7704
Specificity	0.9106	0.8626	0.8493	0.8769	0.8663	0.8883	0.9562
F 1 score	0.8237	0.8547	0.8360	0.8215	0.8387	0.8341	0.8533