Table 7.

P values with Mann-Whitney test.

	Initial CBR	Proposal	MLP	RBF
Initial CBR		1.0000	0.0159	0.0079
Proposal	0.0040		0.0040	0.0040
MLP	0.9921	1.0000		0.2738
RBF	0.9960	1.0000	0.7897

Bold values indicate a relevant difference, row methods lower than column methods.