Table 2

Validation of FCM clustering for simulated data by normalization. Adjusted Rand indices for clusters by applying the FCM method to three simulated datasets normalized using three methods, where the fuzzification (m) value used was either the optimal value or m = 2.

Data\method
When m is optimal
When m is fixed to 2



Z
R
Lowess
Z
R
Lowess

SD1/450
0.47
0.44
0.82
0.49
0.40
0.81
SD2/450
0.43
0.38
0.70
0.49
0.41
0.77
SD3/180
0.12
0.10
0.60
0.15
0.14
0.58

Kim et al. BMC Bioinformatics 2006 7:134   doi:10.1186/1471-2105-7-134