GroupTracer: Automatic Attacker TTP Profile Extraction and Group Cluster in Internet of Things

Table 8

The evaluation of GroupTracer and two comparison baselines using the Calinski–Harabasz, the Silhouette Coefficient, and the Davies–Bouldin index.

Algorithm	Calinski–Harabasz	Silhouette Coefficient	Davies–Bouldin	# of clusters	Value
GroupTracer	3416.9311	0.5389	0.7367	4	10 (threshold)
K-means model	1212.7809	0.3246	1.1807	3	3 (K)
Meanshift model	2199.9206	0.5004	0.6769	2	50% (quantile)