LNNLS-KH: A Feature Selection Method for Network Intrusion Detection

Table 11

Feature selection time and detection time of different feature selection algorithms (NSL-KDD dataset).

Data categories	Time of feature selection (second)					Time of detection (second)
	CMPSO	ACO	KH	IKH	LNNLS-KH	CMPSO	ACO	KH	IKH	LNNLS-KH
Probe	5231.78	4998.14	4745.33	5348.87	5490.48	37.13	38.23	35.30	34.05	31.06
DoS	7892.35	7630.86	7168.52	8038.16	8296.92	118.69	118.15	106.66	105.14	98.44
U2R	154.87	147.29	144.18	157.79	172.24	0.087	0.086	0.086	0.086	0.078
R2L	2556.75	2369.08	2240.92	2669.51	2727.70	9.55	9.13	9.07	8.62	8.03