Experimental measurements of False Rejection Rate (FRR) and False Accept Rate (FAR) values have been estimated at different threshold settings and presented in two different plots as shown in Figure 2. (a) Determine the Equal Error Rate (EER) of the system from each of the plots separately. [You need to annotate how you derived the value(s).] (b) The security application needs an FAR not greater than 15% and an FRR than 25%. Would you recommend procuring this system for the application? Ex briefly. [You need to carry out this analysis using Figure 2(a) and Figure independently. You need to explain/annotate how the decision is reached.]

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
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Question
You are evaluating a biometric system for potential use in a security application.
Experimental measurements of False Rejection Rate (FRR) and False Acceptance
Rate (FAR) values have been estimated at different threshold settings and are
presented in two different plots as shown in Figure 2.
(a) Determine the Equal Error Rate (EER) of the system from each of the plots
separately. [You need to annotate how you derived the value(s).]
(b) The security application needs an FAR not greater than 15% and an FRR less
than 25%. Would you recommend procuring this system for the application? Explain
briefly. [You need to carry out this analysis using Figure 2(a) and Figure 2(b)
independently. You need to explain/annotate how the decision is reached.]
Transcribed Image Text:You are evaluating a biometric system for potential use in a security application. Experimental measurements of False Rejection Rate (FRR) and False Acceptance Rate (FAR) values have been estimated at different threshold settings and are presented in two different plots as shown in Figure 2. (a) Determine the Equal Error Rate (EER) of the system from each of the plots separately. [You need to annotate how you derived the value(s).] (b) The security application needs an FAR not greater than 15% and an FRR less than 25%. Would you recommend procuring this system for the application? Explain briefly. [You need to carry out this analysis using Figure 2(a) and Figure 2(b) independently. You need to explain/annotate how the decision is reached.]
Error Rates
FRR
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
0
FRR
0.1
0.1
0.2
System performance
0.2
0.3
0.4
0.6
Operating Threshold
0.3
0.5
(a)
System Performance (DET Curve)
0.4
0.5
FAR
(b)
Figure 2
0.7
0.6
0.7
0.8
0.8
FAR
0.9
0.9
1
Transcribed Image Text:Error Rates FRR 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 0 FRR 0.1 0.1 0.2 System performance 0.2 0.3 0.4 0.6 Operating Threshold 0.3 0.5 (a) System Performance (DET Curve) 0.4 0.5 FAR (b) Figure 2 0.7 0.6 0.7 0.8 0.8 FAR 0.9 0.9 1
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