The Concept Drift Problem in Android Malware Detection and Its Solution

Table 2

Comparison of each index of the ENBCS algorithm before and after the occurrence of concept drift.

	Precision	Recall	Specificity	Accuracy
Before the occurrence of concept drift	94.44%	91.40%	98.05%	96.29%
After the occurrence of concept drift	28.28%	91.45%	16.03%	36.13%