Prediction Research of Red Tide Based on Improved FCM

Table 4

The comparison of clustering results in Example 2.

	FCM	PCM	DWFCM
Clustering center	(0.64, 0.10)	(0.65, 0.11)	(0.74, 0.12)
	(0.67, 0.48)	(0.68, 0.50)	(0.69, 0.39)
	(0.66, 0.84)	(0.69, 0.80)	(0.70, 0.82)
Iteration number	18	19	13
Error score	7	5	2
Error rate	22%	16%	6%