A Novel Fault Diagnosis Strategy for Heterogeneous Wireless Sensor Networks

Table 4

Comparison of the regression data set fitting results of the four algorithms.

Data	Auto MPG			Housing			Servo			Yacht hydrodynamics
Method	RMSE	MAE	RSD	RMSE	MAE	RSD	RMSE	MAE	RSD	RMSE	MAE	RSD
PSO-KELM	0.0968	19.707	0.663	0.069	218.431	0.891	0.191	16.454	0.715	0.0393	1.797	0.898
GWO-KELM	0.0921	18.659	0.721	0.067	17.927	0.899	0.186	15.941	0.728	0.0352	1.705	0.921
ABC-KELM	0.0896	18.111	0.755	0.064	17.163	0.911	0.183	15.526	0.739	0.0332	1.736	0.938
IABC-KELM	0.0879	17.769	0.776	0.061	16.566	0.927	0.179	15.199	0.748	0.0318	2.011	0.961