Compared with K-NN and ENN identity verification systems, the performance of verification system using improved ENN is enhanced.

实验表明，改进ENN的身份鉴别融合系统的认证率比K-NN和传统ENN融合系统有所提高。

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The trouble is, it is not clear that these identity-verification systems are worth the cost and trouble of introducing them.

ECONOMIST: BIOMETRICS