Research Article
A Machine Learning Approach to Predict Air Quality in California
Table 9
Forecasting models’ error metrics for ozone measurement in the training and validation sets.
| Error metrics | PCA SVR-RBF | SVR-RBF | Training set | Validation set | Training set | Validation set |
| MAE | 0.083 | 0.190 | 0.041 | 0.088 | R2 | 0.987 | 0.923 | 0.996 | 0.982 | RMSE | 0.110 | 0.262 | 0.060 | 0.133 | nRMSE | 0.023 | 0.050 | 0.013 | 0.025 |
|
|