Integrated Quality Assessment for a Passive Authentication System

摘要

A system is disclosed for identifying a user based on the classification of characteristic data collected for that user. An identity verification system accesses characteristic data collected by a sensor for a plurality of users. When a user requests access to an operational context, the identity verification system inputs characteristic data collected for the user to an identity confidence model to generate an authentication result, indicating whether the user was granted access to the operational context. The identity verification system updates a false acceptance rate and a false rejection rate for the identity confidence model based the authentication result. Because the false acceptance rate and the false rejection rate for the identity confidence model characterize the performance of the identity confidence model, the identity verification system adjusts one or more parameters of the identity confidence model to improve reduce the false acceptance rate and the false rejection rate.