Improved Density Peaks Clustering Based on Natural Neighbor Expanded Group

Table 3

Clustering results measured by NMI.

Dataset	DPC-KNN	IDPC	FKNN-DPC	DPC-DBFN	DPC-NNEG
Jain	1.0000 (9)	1.0000 (9)	1.0000 (10)	1.0000 (9)	1.0000
Flame	1.0000 (4)	1.0000 (7)	1.0000 (6)	1.0000 (9)	1.0000
Spiral	1.0000 (7)	1.0000 (5)	1.0000 (5)	1.0000 (4)	1.0000
Statlog (shuttle)	0.3734 (150)	0.1552 (90)	0.4226 (150)	0.5490 (7)	0.6101
Abalone	0.1780 (50)	0.1791 (758)	0.1828 (2)	0.1846 (2)	0.1852
Wine quality	0.0359 (28)	0.0339 (68)	0.0364 (244)	0.0701 (1)	0.0935
DIM512	1.0000 (10)	1.0000 (15)	1.0000 (8)	1.0000 (9)	1.0000
Libras movement	0.5287 (53)	0.5697 (5)	0.5607 (11)	0.5848 (6)	0.5855