High-Dimensional Text Clustering by Dimensionality Reduction and Improved Density Peak

Table 11

The results of the -test of DPC-K-means on ARI.

Dataset		Mean	Standard deviation			Difference
BBC		0.6624	0.3438	1.398	1.533	No
20-newsgroups	4 groups	0.7617	0.3593	1.348	1.533	No
	5 groups	0.6574	0.3026	1.439	1.533	No
	6 groups	0.4822	0.2293	1.897	1.533	Yes
	7 groups	0.4518	0.1849	1.886	1.533	Yes
	8 groups	0.3420	0.1767	1.820	1.533	Yes
Sports Article		0.0875	0.0965	2.469	1.533	Yes
Asian Religious		0.093	0.0813	1.750	1.533	Yes
Stack Overflow		0.0842	0.1694	1.111	1.533	No
Amazon		0.0026	0.0050	1.150	1.533	No