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arXiv 1807.03418cs.SDcs.AIcs.LGeess.AS

AudioMNIST:在一个简单基准上探索用于音频分析的可解释人工智能

AudioMNIST: Exploring Explainable Artificial Intelligence for Audio Analysis on a Simple Benchmark

Fraunhofer Heinrich-Hertz-Institute(弗劳恩霍夫海因里希·赫兹研究所);Technische Universität Berlin(柏林工业大学);Korea University(高丽大学);Max Planck Institute for Informatics(马克斯·普朗克信息学研究所);BIFOLD – Berlin Institute for the Foundations of Learning and Data(BIFOLD——柏林学习与数据基础研究所)

Sören Becker, Johanna Vielhaben, Marcel Ackermann, Klaus-Robert Müller, Sebastian Lapuschkin, Wojciech Samek

AI总结:

本文提出开源音频数据集AudioMNIST,利用LRP技术对处理波形和频谱图的神经网络进行事后解释,通过输入操作验证特征选择假设,并引入可听热图,在用户研究中证明其优于视觉解释。

摘要:

可解释人工智能(XAI)旨在理解模型如何执行特征选择并得出其分类决策。本文探讨了音频领域中深度神经网络的事后解释。值得注意的是,我们提出了一个新颖的开源音频数据集,包含30,000个英语口语数字音频样本,我们将其用于口语数字和说话者生物性别的分类任务。我们使用流行的XAI技术逐层相关性传播(LRP)来识别两种神经网络架构的相关特征,这两种架构分别处理数据的波形或频谱图表示。基于从LRP获得的相关性得分,推导出关于神经网络特征选择的假设,随后通过对输入数据进行系统性操作来检验这些假设。此外,我们超越了视觉解释,引入了可听热图。我们在一项人类用户研究中证明了可听解释相比视觉解释具有更优的可解释性。

英文摘要:

Explainable Artificial Intelligence (XAI) is targeted at understanding how models perform feature selection and derive their classification decisions. This paper explores post-hoc explanations for deep neural networks in the audio domain. Notably, we present a novel Open Source audio dataset consisting of 30,000 audio samples of English spoken digits which we use for classification tasks on spoken digits and speakers' biological sex. We use the popular XAI technique Layer-wise Relevance Propagation (LRP) to identify relevant features for two neural network architectures that process either waveform or spectrogram representations of the data. Based on the relevance scores obtained from LRP, hypotheses about the neural networks' feature selection are derived and subsequently tested through systematic manipulations of the input data. Further, we take a step beyond visual explanations and introduce audible heatmaps. We demonstrate the superior interpretability of audible explanations over visual ones in a human user study.

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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