Unsupervised Approach Data Analysis Based on Fuzzy Possibilistic Clustering: Application to Medical Image MRI

Table 8

Results comparison for clustering index (Se and Sp) for WM tissue by FCM, PCM, PFCM, and HPFCM with different noises (0%, 1%, 3%, 5%, 7%, and 9%), using Brainweb data sets.

Noise	FCM		PCM		PFCM		HPFCM
	Se	Sp	Se	Sp	Se	Sp	Se	Sp
0%	83.30	89.81	83.50	86.72	95.12	97.82	96.95	98.14
1%	82.92	87.14	82.17	86.11	94.06	96.85	96.38	97.45
3%	79.61	85.92	81.06	84.44	92.37	95.41	95.71	96.97
5%	76.96	80.57	80.20	82.39	91.25	93.52	94.94	96.38
7%	74.18	78.93	78.79	81.76	90.55	92.79	94.05	95.81
9%	71.99	77.41	77.15	80.22	90.06	91.60	93.26	94.70