Question 2: | A biometric system consists of two subsystems: face and fingerprint. The following values have been obtained for the two subsystems separately: FMR (False Match Rate) FNMR (False Non-Match Rate) Face subsystem Fingerprint subsystem 8% 10 % 4% 14% Suppose that the subsystems decisions are combined as follows: The outcome of the combined system will be a match only when the outcomes of both of the subsystems are matches. When the outcome of either subsystem is a non-match, the outcome of the combined system will be a non-match. a. Compute the FMR and FNMR values of the combined system? b. What are your conclusions about the performance of the combined system?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Question 2:
A biometric system consists of two subsystems: face and fingerprint. The following values have
been obtained for the two subsystems separately:
FMR (False Match Rate) FNMR (False Non-Match Rate)
Face subsystem
| Fingerprint subsystem
8%
10 %
4%
14%
Suppose that the subsystems decisions are combined as follows:
The outcome of the combined system will be a match only when the outcomes of both of the
subsystems are matches. When the outcome of either subsystem is a non-match, the outcome of
the combined system will be a non-match.
a. Compute the FMR and FNMR values of the combined system?
b. What are your conclusions about the performance of the combined system?
Transcribed Image Text:Question 2: A biometric system consists of two subsystems: face and fingerprint. The following values have been obtained for the two subsystems separately: FMR (False Match Rate) FNMR (False Non-Match Rate) Face subsystem | Fingerprint subsystem 8% 10 % 4% 14% Suppose that the subsystems decisions are combined as follows: The outcome of the combined system will be a match only when the outcomes of both of the subsystems are matches. When the outcome of either subsystem is a non-match, the outcome of the combined system will be a non-match. a. Compute the FMR and FNMR values of the combined system? b. What are your conclusions about the performance of the combined system?
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