Improved Instance Selection Methods for Support Vector Machine Speed Optimization

Table 3

Result for FFA_Clus.

Total email	NFF	NI	APA (%)	GB	FP (%)	FN (%)	(%)	Pr (%)	FM (%)	(s)
4000	5	100	99.98	100	0.03	0.00	100	99.80	99.90	29.66
4000	5	150	99.95	100	0.06	0.00	100	99.61	99.61	45.69
4000	5	200	99.83	100	0.20	0.00	100	98.67	99.32	61.92
4000	5	250	99.78	100	0.26	0.00	100	98.29	99.12	83.92
4000	5	300	99.93	100	0.09	0.00	100	99.41	99.70	121.38
4000	10	100	99.90	100	0.11	0.00	100	99.22	99.60	29.87
4000	10	150	99.93	100	0.09	0.00	100	99.42	99.70	52.65

Key: NFF: number of fireflies, NI: number of instances, GB: global best, APA: average prediction accuracy, FP: false positive, FN: false negative, : recall, Pr: precision, FM: -measure, and : time.