Table 3: F-measure of clustering algorithms before and after the feature selection process.

RatioStageEMsimpleKFarthestFirstXMeansDensityBased

50:50Before
After
0.5297
0.6134
0.4815
0.6443
0.2692
0.6647
0.4815
0.6443
0.4806
0.6492
60:40Before
After
0.5787
0.6319
0.5186
0.6820
0.6869
0.7473
0.5186
0.6820
0.5179
0.6835
70:30Before
After
0.6222
0.6453
0.6159
0.7112
0.7527
0.8202
0.6159
0.5400
0.6163
0.7121
80:20Before
After
0.6575
0.6540
0.6540
0.6268
0.8085
0.8849
0.6540
0.7178
0.6541
0.5859
90:10Before
After
0.6841
0.6610
0.6892
0.6402
0.8590
0.9426
0.6892
0.8126
0.6932
0.6813
95:1Before
After
0.6896
0.6732
0.7053
0.6732
0.9028
0.9130
0.8926
0.7608
0.7076
0.6733
99:1Before
After
0.7574
0.6829
0.7212
0.7373
0.8328
0.7143
0.7212
0.7538
0.7296
0.6775
AVGBefore
After
0.6456
0.6516
0.6265
0.6735
0.7307
0.8124
0.6532
0.7016
0.6284
0.6661