Table 9 Top six Score ranked spectral bands associated with the convolution neural network and feedforward neural network models using the spectral data with a bandwidth of ± 10 nm in three spectral ranges. The Socre is the absolute mean of the integrated gradients.
Model | Spectral range | Bands (nm) and their mean of the integrated gradients | |||||
|---|---|---|---|---|---|---|---|
1st | 2nd | 3rd | 4th | 5th | 6th | ||
CNN | 400–1700 nm | 570 nm | 590 nm | 510 nm | 530 nm | 650 nm | 630 nm |
− 0.079 | − 0.074 | 0.064 | 0.056 | 0.045 | 0.036 | ||
400–1000 nm | 530 nm | 550 nm | 590 nm | 710 nm | 450 nm | 510 nm | |
0.092 | 0.087 | − 0.057 | − 0.053 | − 0.038 | − 0.035 | ||
400–700 nm | 510 nm | 530 nm | 610 nm | 490 nm | 590 nm | 450 nm | |
0.072 | 0.035 | − 0.034 | 0.033 | − 0.032 | − 0.027 | ||
FNN | 400–1700 nm | 570 nm | 510 nm | 590 nm | 1190 nm | 1170 nm | 490 nm |
− 23.476 | 16.677 | − 16.253 | − 16.205 | 14.884 | 14.346 | ||
400–1000 nm | 570 nm | 590 nm | 510 nm | 650 nm | 670 nm | 490 nm | |
− 25.192 | − 20.786 | 18.080 | 13.278 | 12.671 | 11.789 | ||
400–700 nm | 490 nm | 670 nm | 510 nm | 550 nm | 690 nm | 570 nm | |
46.826 | 43.590 | 40.398 | − 38.985 | − 36.393 | − 32.428 | ||
