HTTP Cookie Covert Channel Detection Based on Session Flow Interaction Features

Table 8

Results of the data imbalance experiment.

Abnormal/normal in test set	Accuracy	Precision	Recall	F1 score
1 : 1	0.9876	0.99696	0.9788	0.98775
1 : 5	0.99104	0.99873	0.949	0.97225
1 : 10	0.99725	1.0	0.97	0.9847
1 : 50	0.99901	1.0	0.96	0.97309
1 : 100	0.999	1.0	0.9	0.9444