Relationship Matrix Nonnegative Decomposition for Clustering

Table 3

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

Cluster number	Clustering accuracy					Normalized mutual information
𝑘	𝐾-means	SpeClus	SNMF	WNMF	RMND	𝐾-means	SpeClus	SNMF	WNMF	RMND
2	0.6325	0.7909	0.7665	0.7023	0.8457	0.1621	0.4119	0.3322	0.2584	0.5294
3	0.5536	0.6926	0.6857	0.6538	0.8022	0.2427	0.4999	0.4916	0.4391	0.6242
4	0.5301	0.6216	0.5766	0.5375	0.6634	0.2893	0.5064	0.4138	0.3097	0.5291
5	0.4366	0.5888	0.5635	0.4632	0.5817	0.2325	0.5567	0.4754	0.2950	0.5047
ave.	0.5382	0.6735	0.6506	0.5892	0.7233	0.2328	0.4937	0.4283	0.3246	0.5469