生物特征模板更新的性能评估
Performance Evaluation of Biometric Template Update
摘要：
模板更新允许在用户使用生物识别系统时修改用户的生物识别参考。有了这种机制，我们希望生物识别系统总是使用最新的用户表示，通过捕捉他的类内（临时或永久）的变化。虽然文献中存在一些研究，但没有普遍采用的评价方案。这并不容易比较不同系统的文献。在本文中，我们表明，使用不同的评估程序可能会导致不同的，矛盾的，结果的解释。为了说明这一点，我们在由高度不同的会话组成的数据集上使用了一个动态模板更新系统（这是一种快速遭受模板老化的模态）。即使我们不回答这个问题，它表明有必要规范化的模板更新评估程序。
英文摘要：
Template update allows to modify the biometric reference of a user while he uses the biometric system. With such kind of mechanism we expect the biometric system uses always an up to date representation of the user, by capturing his intra-class (temporary or permanent) variability. Although several studies exist in the literature, there is no commonly adopted evaluation scheme. This does not ease the comparison of the different systems of the literature. In this paper, we show that using different evaluation procedures can lead in different, and contradictory, interpretations of the results. We use a keystroke dynamics (which is a modality suffering of template ageing quickly) template update system on a dataset consisting of height different sessions to illustrate this point. Even if we do not answer to this problematic, it shows that it is necessary to normalize the template update evaluation procedures.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
