A Hybrid Swarm Intelligence Algorithm for Intrusion Detection Using Significant Features

Table 7

Confusion matrix.

Actual	Predicted
	Normal	Attack
Normal	True Negative (TN)	False Positive (FP)
Attack	False Negative (FN)	True Positive (TP)

True Positive (TP): the number of of attacks that are correctly identified.
True Negative (TN): the number of normal records that are correctly classified.
False Positive (FP): the number of normal records incorrectly classified.
False Negative (FN): the number of attacks incorrectly classified.