Hybrid Fuzzy Clustering Method Based on FCM and Enhanced Logarithmical PSO (ELPSO)

Table 7

Best results for validity index PBM(F) (best results are highlighted in bold).

Datasets	GA-FCM	FCM-SPSO	FCM-LPSO	FCM-EPSO	FCM-RPSO	FCM-ELPSO
Ecoli	0.3265	0.3274	0.3303	0.3308	0.3327	0.3340
Glass	3.0827	3.1856	3.7173	3.2463	4.0843	3.9848
Image segmentation	564.4213	566.3507	577.5760	573.2499	576.2624	587.5084
Page blocks classification	8.1091e + 04	8.5060e + 04	8.5086e + 04	7.7729e + 04	8.7911e + 04	8.3118e + 04
Spectf	26.4198	18.8760	35.7040	35.4333	33.3814	34.2975
Steel plates faults	1.0651e + 07	1.0634e + 07	1.0566e + 07	1.0686e + 07	1.0685e + 07	1.0692e + 07
Ultrasonic flowmeter diagnostics	4.0962e + 03	4.1664e + 03	4.0975e + 03	4.0582e + 03	4.1587e + 03	4.2225e + 03
Yeast	0.1082	0.1105	0.1395	0.1374	0.1378	0.1526