Table 2
Performance comparison of 4 NGDC-ANN model by applying different applied transfer functions in two hidden layers using
=
= 5 and Levenberg-Marquardt back-propagation (trainlm) as a BPLA.
| Applied transfer function in: |
MSE × 105 | Epochs | R 2 | |
|---|---|---|---|---|
| Hidden layer 1 (L1) | Hidden layer 2 (L2) | |||
| logsig | logsig | 12.760 | 235 | 0.9993 |
| logsig | tansig | 9.771 | 169 | 0.9910 |
| tansig | logsig | 6.2606 | 378 | 0.9993 |
| tansig | tansig | 0.898 | 478 | 0.9996 |