This document provides statistical methodologies to estimate false match rates (FMRs) from small biometric sample sets.

This document intends to:

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lay out a methodology for biometric performance estimation based on extrapolation using extreme value statistical models;

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provide statistical methodologies to estimate FMRs of biometric verification systems;

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be applicable to systems that include algorithms that produce likelihood dissimilarity or similarity scores;

NOTE            Throughout the document, if not otherwise specified, scores refer to similarity scores.

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specify the methodology for data recording and result reporting;

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introduce metrics for the estimated biometric performance.

The following are not within the scope of this document.

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Estimation of false positive identification rates for one-to-many implementations.

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Estimation of false accept rates for verification transactions.