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Large Scale Applications

Large Scale Applications. Dr. Pushkin Kachroo. TexPoint fonts used in EMF. Read the TexPoint manual before you delete this box.: A A. Large Scale Applications. To reduce # of matches needed Filtering : using non-bio like sex, age etc. Binning : using additional biometric. Size.

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Large Scale Applications

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  1. Large Scale Applications Dr. Pushkin Kachroo TexPoint fonts used in EMF. Read the TexPoint manual before you delete this box.: AA

  2. Large Scale Applications • To reduce # of matches needed • Filtering: using non-bio like sex, age etc. • Binning: using additional biometric

  3. Size • Small: 1000 (approx. stored samples) • Medium: 10K • Large: 100K • Very Large: 1M • Extremely Large: 10M

  4. Examples Voter Registration Enrollment Authentication National ID Enrollment Authentication

  5. Fingerprint

  6. Enrollment False Positives • Quadratic ~ [m x FAR(1)] x m • For one finger…10^8 gives 10^11 • Two finger it gives 10^6

  7. Enrollment False Negatives • FNR ~ 10-3

  8. Authentication Accuracy • False Rejects: FRR x m = 105 for 108 size • False Accepts: 10-5

  9. Matcher Sizing • m(t): Database size • J(t): Match throughput; #matches needed/time • E(t): Enrollment Rate • A(t): Authentication Rate

  10. Matcher Throughput

  11. Matcher Throughput-2 Voter Registration/Election National ID

  12. Total # of Matches Verification on Election Day Enrollment

  13. Cost • Incremental Cost : Sampling, printing ID, etc.; Linear • Exception Handling : Cost of Resolving False Positives; quadratic

  14. Total Cost Even for i = 0 we get:

  15. Cost-Plot Cost(m) m

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