Table 3.

Performance comparison of the symbolic data modeling with SGEF with different mask window size and fractional order polynomial on AR, ORL, LFW, and VISA Face datasets

Mask size	Computation time in seconds				Recognition accuracy at α = 0.3 in %
	AR	ORL	LFW	VISA	AR	ORL	LFW	VISA Face
F = 3 × 3	0.032	0.340	0.222	0.625	95.17	99.75	97.03	96.59
F = 5 × 5	0.035	0.356	0.224	0.626	95.08	100	96.90	96.52
F = 7 × 7	0.038	0.364	0.226	0.703	94.92	100	96.75	96.19
F = 11 × 11	0.045	0.451	0.239	0.734	94.83	100	94.00	96.59
F = 13 × 13	0.054	0.356	0.241	0.738	94.92	100	94.15	96.23

Bold values represents best recognition rate and computation for 3 × 3 mask size