Table 3 Mean validation R² and mean validation RMSE from 1000 bootstrap resamples 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 | Mean R2 | Mean RMSE (%) |
|---|---|---|
Color Data | ||
RF | 0.72 | 0.90 |
GBR | 0.66 | 0.99 |
XGBoost | 0.60 | 1.03 |
ANN | 0.59 | 1.08 |
Spectral Data | ||
RF | 0.55 | 1.15 |
GBR | 0.65 | 0.99 |
XGBoost | 0.58 | 1.10 |
ANN | 0.70 | 0.92 |
