A Modified Hybrid Method Based on PSO, GA, and K-Means for Network Anomaly Detection

Table 2

Classification of data sets.

Data set	Normal data	Abnormal data	Normal proportion (%)
Training set A1	19502	498	97
Test set A2-DoS	24256	744	97
Test set A2-R2L	24256	744	97
Test set A2-Probe	24256	744	97
Test set A2-Mix	24256	744	97