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arXiv 2202.13693eess.AScs.SD
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可解释的deepfake和欺骗检测:使用SHapley Additive exPlanations的攻击分析

Explainable deepfake and spoofing detection: an attack analysis using SHapley Additive exPlanations

EURECOM(欧洲电信学院)

Wanying Ge, Massimiliano Todisco, Nicholas Evans

摘要:

尽管在自动说话人验证的deepfake和欺骗检测方面进行了多年的研究,但人们对分类器用于区分真实和欺骗话语的人工制品知之甚少。理解这些对于设计可靠、可解释的解决方案至关重要。在本文中,我们报告了我们以前的工作,以更好地了解分类器的行为,使用SHapley加法解释(SHAP)攻击分析的扩展。我们的目标是识别由不同攻击算法产生的伪影。使用一对分类器,操作原始波形或幅度频谱图,我们表明,SHAP结果的可视化可用于识别攻击特定的文物和合成语音和转换语音欺骗攻击之间的差异和混淆。

英文摘要:

Despite several years of research in deepfake and spoofing detection for automatic speaker verification, little is known about the artefacts that classifiers use to distinguish between bona fide and spoofed utterances. An understanding of these is crucial to the design of trustworthy, explainable solutions. In this paper we report an extension of our previous work to better understand classifier behaviour to the use of SHapley Additive exPlanations (SHAP) to attack analysis. Our goal is to identify the artefacts that characterise utterances generated by different attacks algorithms. Using a pair of classifiers which operate either upon raw waveforms or magnitude spectrograms, we show that visualisations of SHAP results can be used to identify attack-specific artefacts and the differences and consistencies between synthetic speech and converted voice spoofing attacks.

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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