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arXiv 2403.01355eess.AScs.LG
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a-DCF:一种与架构无关的度量标准及其在抗欺骗说话人验证中的应用

a-DCF: an architecture agnostic metric with application to spoofing-robust speaker verification

Carnegie Mellon University(卡内基梅隆大学);University of Eastern Finland(东芬兰大学);EURECOM(欧洲通信大学);Inria(法国国家信息与自动化研究所);Avignon University(阿维尼翁大学);Afeka Tel-Aviv Academic College of Engineering(阿菲克特拉维夫工程学术学院)

Hye-jin Shim, Jee-weon Jung, Tomi Kinnunen, Nicholas Evans, Jean-Francois Bonastre, Itshak Lapidot

AI总结:

针对现有抗欺骗说话人验证评估度量存在缺陷或限制架构的问题,提出与架构无关的检测代价函数a-DCF(原始DCF的泛化),通过基准评估证明其价值。

摘要:

欺骗检测如今是主流研究课题。标准度量可用于评估孤立欺骗检测方案的性能,另有一些度量被提出以支持其与说话人检测结合时的评估。这些度量要么存在众所周知的缺陷,要么限制了结合说话人和欺骗检测器的架构方法。本文提出一种与架构无关的检测代价函数(a-DCF),它是广泛用于自动说话人验证(ASV)评估的原始DCF的泛化,专为抗欺骗ASV的评估设计。与DCF类似,a-DCF从贝叶斯风险角度反映决策代价,具有明确定义的类先验和检测代价模型。我们通过对架构异构的抗欺骗ASV方案进行基准评估,证明了a-DCF的价值。

英文摘要:

Spoofing detection is today a mainstream research topic. Standard metrics can be applied to evaluate the performance of isolated spoofing detection solutions and others have been proposed to support their evaluation when they are combined with speaker detection. These either have well-known deficiencies or restrict the architectural approach to combine speaker and spoof detectors. In this paper, we propose an architecture-agnostic detection cost function (a-DCF). A generalisation of the original DCF used widely for the assessment of automatic speaker verification (ASV), the a-DCF is designed for the evaluation of spoofing-robust ASV. Like the DCF, the a-DCF reflects the cost of decisions in a Bayes risk sense, with explicitly defined class priors and detection cost model. We demonstrate the merit of the a-DCF through the benchmarking evaluation of architecturally-heterogeneous spoofing-robust ASV solutions.

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。

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