Table 2 The average of communalities of the original and distance-based features

Average

Std deviation

Average (+/-)

Std deviation

Abalone

0.857

0.149

0.792 (-0.065)

0.236

Balance scale

0.504

0.380

0.876 (+0.372)

0.089

Corel

0.789

0.111

0.795 (+0.006)

0.125

Tic-Tac-Toe Endgame

0.828

0.066

0.866 (+0.038)

0.093

German

0.590

0.109

0.860 (+0.27)

0.112

Hayes-Roth

0.567

0.163

0.862 (+0.295)

0.175

Ionosphere

0.691

0.080

0.912 (+0.221)

0.034

Iris

0.809

0.171

0.722 (-0.087)

0.299

Optical recognition of handwritten digits

0.755

0.062

0.821 (+0.066)

0.135

Teaching assistant evaluation

0.574

0.085

0.831 (+0.257)

0.124