Advances, Systems and Applications
Table 2 The two-dimensional confusion matrices that define the main factors considered in IDS performance evaluation when predicting the anomaly and normal classes
From: Intrusion detection systems for IoT-based smart environments: a survey
| Â | Â | Predicting the anomaly class | |
| Â | Â | Attack | Normal |
Actual | Attack | α A | β A |
Class | Normal | γ A | δ A |
| Â | Â | Predicting the normal class | |
| Â | Â | Normal | Attack |
Actual | Normal | α N | β N |
Class | Attack | γ N | δ N |