Doddington's Zoo and Fingerprint System Security - Noblis

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Applying FMR to Credentialing Systems FMR does not tell us the probability of a false match of any randomly selected individual against a specific other This Presentation is BearingPoint Proprietary Information © 2007 BearingPoint, LLC. 5
Doddington’s Zoo – Doddington, et al, says, ─ “In our model, sheep dominate the population and systems perform nominally well for them.” ─ “Goats tend to adversely affect the performance of systems by accounting for a disproportionate share of the missed detections. The goat population can be an especially important problem for entry control systems, where it is important that all users be reliably accepted.” ─ “Lambs, in our model, are those speakers who are particularly easy to imitate.” ─ “Wolves, in our model, are those speakers who are particularly successful at imitating other speakers.” This Presentation is BearingPoint Proprietary Information © 2007 BearingPoint, LLC. 6
Page 1 and 2: Doddington's Zoo and Fingerprint Sy
Page 3 and 4: Overview - MINEX04 results imply lo
Page 5: What does FMR really tell us? FMR r
Page 9 and 10: Zoo Population Sizes - What percent
Page 11 and 12: Applying the “Zoo” to System De
Page 13 and 14: Analysis of NIST IAD Biometric Scor
Page 15 and 16: Score Frequencies Frequency 2000000
Page 17 and 18: Lamb & Wolf Analysis Rather than FN
Page 19 and 20: Application of higher thresholds On
Page 21 and 22: Impact on Overall System FMR All ma
Page 23 and 24: Caveats - Parameter selections were
Page 25 and 26: Next Steps - Acquire dataset that l
Page 27: This Presentation is BearingPoint P

Doddington's Zoo and Fingerprint System Security - Noblis

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