Hybrid Artificial Neural Networks Modeling for Faults Identification of a Stochastic Multivariate Process

Table 3

Basis functions and important explanatory variables for the MARS model with (𝜌,𝛿_𝑖)=(0.1,0.5).

Function	Std. dev.	Cost of omission	Number of BF	Variable	Relative importance (%)
1	0.501	1.070	1	𝑥3	100.000
2	0.500	1.065	3	𝑥5	98.993
3	0.339	0.963	1	𝑥1	70.614
4	0.332	0.957	1	𝑥7	68.366
5	0.131	0.873	1	𝑥13	26.827
6	0.104	0.867	1	𝑥16	20.879
7	0.099	0.866	1	𝑥14	19.621
8	0.093	0.865	1	𝑥17	18.071