The Effects of Feature Optimization on High-Dimensional Essay Data

Table 3

Comparison of normalization methods (correlation).

Normalization	MR	ME	SVM	SVR
None	0.1702	0.3166	0.2839	0.2980
min-max	0.7383	0.7160	0.7675	0.7756
-score	0.7315	0.7289	0.7701	0.7747