Effectiveness of Biometrics

Question 1

False Reject Rate (FRR)

Answer 1

percentage of identification
instances in which authorised users are denied access
(i.e., Type I error)

Question 2

False Accept Rate (FAR)

Answer 2

percentage of identification
instances in which unauthorised users are allowed access
(i.e., Type II error)

Question 3

Crossover Error Rate (CER)

Answer 3

Level at which the number of
false rejections equals the false acceptances (i.e., the equal
error rate (EER)