Relationship Matrix Nonnegative Decomposition for Clustering

Table 2

Clustering accuracy and normalized mutual information of 𝐾-means, spectral clustering (SpeClus), SNMF, WNMF, and RMND on the Coil20 dataset.

Cluster number	Clustering accuracy					Normalized mutual information
𝑘	𝐾-means	SpeClus	SNMF	WNMF	RMND	𝐾-means	SpeClus	SNMF	WNMF	RMND
4	0.6602	0.6736	0.6700	0.6682	0.6811	0.5173	0.5494	0.5245	0.5326	0.5578
6	0.4807	0.4816	0.4670	0.4852	0.5054	0.4572	0.4669	0.4283	0.4342	0.4456
8	0.5128	0.5412	0.4967	0.4702	0.5444	0.5312	0.5632	0.5346	0.4940	0.5634
10	0.5355	0.5594	0.5543	0.5104	0.5532	0.6048	0.6002	0.6080	0.5632	0.6055
avg.	0.5473	0.5640	0.5470	0.5335	0.5710	0.5276	0.5449	0.5135	0.5060	0.5431