Research Article

Feature Selection for Very Short-Term Heavy Rainfall Prediction Using Evolutionary Computation

Table 4

Effect of undersampling (sampled 3 stations, prediction after 3 hours).

w/o undersamplingw/undersampling
-NN (min) -VNN (min)SVM (min) -NN (sec) -VNN (sec)SVM (sec)

w/o normalization0.000 (3323)0.000 (3760)N/A (>10000000) 0.003 (301)0.014 (329)0.024 (285)
w/normalization0.000 (3721)0.000 (3940)N/A (>10000000)0.032 (329)0.094 (349)0.267 (506)