Table 4.
Feature importance—pollutant source location estimation.
| Feature | Importance |
|---|---|
| Mean pH value | 2.04% |
| Standard deviation of pH | 21.01% |
| Maximum pH value | 7.08% |
| Minimum pH value | 4.27% |
| First quartile of pH | 2.51% |
| Second quartile of pH | 2.61% |
| Third quartile of pH | 2.79% |
| Mean conductivity value | 3.42% |
| Standard deviation of conductivity | 24.16% |
| Maximum conductivity value | 8.40% |
| Minimum conductivity value | 5.27% |
| First quartile of conductivity | 3.09% |
| Second quartile of conductivity | 1.46% |
| Third quartile of conductivity | 2.41% |
| Sensor ID | 2.44% |
| Measurement hour | 3.21% |
| Substance name | 3.84% |