On Optimal Operator for Combining Left and Right Sole Pressure Data in Biometrics Security

Table 6

EERs in verification of combination operators.

Volunteers (person)	EER (%)
	Combination operators						𝜇^𝑟𝑅 (16)	𝜇^𝑟𝐿	Euclidean distance
	Mean (17)	Minimum	Maximum	Product	Probabilistic	Weighting sum
20	3.27	5.57	4.12	3.33	2.52	2.52 (𝑤=0.49)	8.09	7.37	17.5
30	3.33	6.65	4.44	3.33	3.29	3.33 (𝑤=0.51)	9.58	8.44	19.4
40	4.17	7.12	5.01	4.57	3.76	4.15 (𝑤=0.49)	9.69	9.35	21.8
50	5.25	8.65	6.36	5.66	5.09	5.11 (𝑤=0.52)	10.60	11.92	23.3
90	8.78	11.33	10.30	9.03	8.90	8.78 (𝑤=0.50)	13.49	14.97	29.2