Table 2 Model validation statistics using 30% validation set for soil organic carbon prediction using Nix extracted soil color and spectral data across four algorithms applied to soils from West Bengal, India.
From: Enhancing soil organic carbon estimation with generative AI and Nix color sensor
Model | R² | RMSE (%) | Bias (%) | RPIQ |
|---|---|---|---|---|
Color Data | ||||
RF | 0.71 | 0.93 | 0.10 | 1.16 |
GBR | 0.64 | 1.04 | 0.15 | 1.04 |
XGBoost | 0.66 | 1.01 | 0.13 | 1.08 |
ANN | 0.60 | 1.10 | 0.26 | 0.98 |
Spectral Data | ||||
RF | 0.61 | 1.09 | 0.07 | 1.00 |
GBR | 0.64 | 1.05 | 0.10 | 1.04 |
XGBoost | 0.54 | 1.18 | 0.13 | 0.92 |
ANN | 0.68 | 0.98 | 0.12 | 1.10 |
