[Retracted] Analysis of Pull-In Instability of Geometrically Nonlinear Microbeam Using Radial Basis Artificial Neural Network Based on Couple Stress Theory

Table 3

The effects of different number of hidden neurons on the RBF network performance (𝑆=3).

Number of hidden neurons	Average error (%) in predicting 𝑉PI with newrbe function	Average error (%) in predicting 𝑉PI with newrb function
16	8.87	7.3
18	9.66	10.77
20	4.55	6.08
22	12.32	14.71
24	12.89	15.16
26	13.78	16.24