Table 3.

Clustering results.

Dataset	Evaluation criteria	DPC-ZPS	PPC	DPC	DBSCAN	OPTICS	AP
Aggregation	AMI	1.0000	0.9922	1.0000	0.9785	0.9368	0.7352
	ARI	1.0000	0.9956	1.0000	0.9888	0.9747	0.6427
Flame	AMI	1.0000	1.0000	1.0000	0.8844	0.7385	0.3239
	ARI	1.0000	1.0000	1.0000	0.9550	0.8965	0.3950
Spiral	AMI	1.0000	1.0000	1.0000	1.0000	1.0000	−0.0014
	ARI	1.0000	1.0000	1.0000	1.0000	1.0000	−0.0016
D31	AMI	0.9556	0.9554	0.9554	0.9087	0.7901	0.8563
	ARI	0.9367	0.9365	0.9365	0.8450	0.5814	0.7991
R15	AMI	0.9938	0.9938	0.9938	0.9916	0.9734	0.9907
	ARI	0.9928	0.9928	0.9928	0.9893	0.9785	0.9891
DIM512	AMI	1.0000	1.0000	1.0000	1.0000	0.9029	1.0000
	ARI	1.0000	1.0000	1.0000	1.0000	0.9432	1.0000
Olivetti face	AMI	0.8086	0.8447	0.8259	0.7106	0.4286	0.7297
	ARI	0.7385	0.7155	0.6863	0.4668	0.5036	0.6260