Empirical Study of Homogeneous and Heterogeneous Ensemble Models for Software Development Effort Estimation

Table 4

Performance of individual and hybrid models based on EF metric.

		Dataset
		Albrecht	Miyazaki	Maxwell	COCOMO	Desharnais
SVR	Individual	0.243	0.274	0.326	0.010	0.445
	PCA	0.418	0.503	0.478	0.081	0.258
	PCA-GA	0.000	1.307	0.538	0.070	0.062
MLP	Individual	0.610	0.299	0.330	0.092	0.252
	PCA	0.300	0.499	0.234	0.275	0.227
	PCA-GA	0.245	0.154	0.193	0.017	0.070
ANFIS	Individual	0.251	0.538	0.087	0.043	0.187
	PCA	0.139	1.305	0.110	0.050	0.000
	PCA-GA	0.000	0.203	0.059	0.007	0.000