A Method of Intrusion Detection Based on WOA-XGBoost Algorithm

Table 3

The variance percentage of each feature retained after PCA dimensionality reduction.

The variance percentage of each feature retained after PCA dimensionality reduction
1	64.1883	22	0.00420314
2	19.3173	23	0.00325957
3	10.0053	24	0.00295817
4	1.81274	25	0.00263388
5	1.30667	26	0.00204101
6	1.02509	27	0.00198391
7	0.604916	28	0.00152331
8	0.524256	29	0.00114369
9	0.33906	30	0.000799525
10	0.252862	31	0.000453465
11	0.175139	32	0.0003868
12	0.108258	33	0.000349558
13	0.0807029	34	0.00020107
14	0.0662576	35	9.99855E-05
15	0.0455444	36	7.48492E-05
16	0.0350883	37	6.17846E-05
17	0.03191	38	7.91281E-07
18	0.0288327	39	4.33325E-31
19	0.014002	40	4.33325E-31
20	0.00916991	41	4.33325E-31
21	0.00651608