Research Article
Feature Selection for Very Short-Term Heavy Rainfall Prediction Using Evolutionary Computation
Table 7
Experimental results (1–6 hours) by ETS.
| Prediction type | Prediction hour | 1 | 2 | 3 | 4 | 5 | 6 | CE | WP | CE | WP | CE | WP | CE | WP | CE | WP | CE | WP |
| DE | | | | | | | | | | | | | -NN | 0.096 | 0.183 | 0.062 | 0.127 | 0.043 | 0.093 | 0.026 | 0.059 | 0.020 | 0.049 | 0.014 | 0.035 | -VNN | 0.098 | 0.187 | 0.073 | 0.147 | 0.049 | 0.104 | 0.030 | 0.069 | 0.021 | 0.048 | 0.015 | 0.037 | SVM (polynomial) | 0.192 | 0.383 | 0.139 | 0.320 | 0.140 | 0.329 | 0.090 | 0.238 | 0.027 | 0.105 | 0.005 | 0.019 | GA | | | | | | | | | | | | | -NN | 0.070 | 0.265 | 0.068 | 0.212 | 0.056 | 0.160 | 0.035 | 0.105 | 0.025 | 0.078 | 0.009 | 0.044 | -VNN | 0.179 | 0.314 | 0.152 | 0.279 | 0.113 | 0.230 | 0.084 | 0.184 | 0.047 | 0.117 | 0.029 | 0.078 | SVM | | | | | | | | | | | | | Polynomial | 0.276 | 0.516 | 0.239 | 0.481 | 0.160 | 0.373 | 0.102 | 0.271 | 0.040 | 0.148 | 0.008 | 0.046 | Linear | 0.043 | 0.095 | 0.096 | 0.196 | 0.127 | 0.200 | 0.083 | 0.150 | 0.152 | 0.240 | 0.102 | 0.173 | Precomputed | 0.048 | 0.102 | 0.055 | 0.126 | 0.040 | 0.086 | 0.079 | 0.157 | 0.048 | 0.090 | 0.040 | 0.074 |
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CE: forecasting the coming event of heavy rainfall. WP: forecasting the whole process of heavy rainfall.
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