Intrusion Detection System Based on Decision Tree over Big Data in Fog Environment

Table 5

The calculation time contrast for three methods.

Method	Group
	4 kinds 10%	22 kinds 10%	4 kinds full	22 kinds full
Decision tree	1.455921545 s	1.173570469 s	3.319417967 s	3.143889363 s
BernoulliNB	0.472016006 s	0.552608763 s	0.986687026 s	1.116946133 s
KNN	1962.25 s	/	7372.6833 s	/