Table 1.

Empirical Analysis Results: Maximum and Average Adjusted Rand Index (ARI), proportion of local optima ( $p_{lo}$) and mean squared parameter error (MSPE)

Data Set	$p_{lo}$	Average ARI	Max ARI	MSPE
Crabs	1.00	0.66	0.82	0.08
Iris	1.00	0.70	0.90	0.01
User	1.00	0.16	0.46	0.00
Seeds	0.92	0.71	0.81	0.44

Note: plo - proportion of locally optimal solutions, ARI - Adjusted Rand Index, MSPE - Mean Squared Parameter Error