Table 3. The dimension of each sets.
| Set | Dimension (x × y × z1/z2)(*) |
|---|---|
| Training Set | 4344 × 340 × 16/13 |
| Validation Set | 2184 × 340 × 16/13 |
| Testing Set | 2184 × 340 × 16/13 |
* x—Number of samples; y—Number of grid cells (340 = 20×17); z1—Number of all features (NO2, wind speed, temperature, humidity, barometric pressure, solar irradiance, intensity, occupancy time, north, east, south, west, southwest, northeast, southeast, northwest), z2—Number of selected features (NO2, wind speed, barometric pressure, intensity, occupancy time, north, east, south, west, southwest, northeast, southeast, northwest). Note that features include wind directions after the implementation of One Hot Encoder.