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arXiv 2408.06065cs.CLcs.AIcs.SDeess.AS

可解释音频仇恨言论检测研究

An Investigation Into Explainable Audio Hate Speech Detection

POSTECH(浦项科技大学);aiXplain Inc.(aiXplain公司)

Jinmyeong An, Wonjun Lee, Yejin Jeon, Jungseul Ok, Yunsu Kim, Gary Geunbae Lee

AI总结:

针对语音仇恨言论研究缺乏可解释性的问题,提出可解释音频仇恨言论检测任务,构建合成数据集,提出级联与端到端两种方法,验证发现端到端法性能更优且加入帧级理据可提升检测准确率。

摘要:

仇恨言论研究主要围绕文本输入的检测与解读展开,语音内容在很大程度上尚未被探索。尽管针对语音声学输入中的仇恨言论检测已有少量探索,但可解释性方面仍被忽视。因此,我们提出可解释音频仇恨言论检测这一新任务。具体而言,我们旨在识别被称为音频帧级理据的精确时间区间,作为仇恨言论分类的证据。为此,我们提出两种不同方法:级联法和端到端(E2E)法。级联法首先将音频转换为转录文本,在这些文本中识别仇恨言论,随后定位对应的音频时间帧。相反,E2E法直接处理音频话语,能够在特定时间帧内定位仇恨言论。此外,由于缺乏包含音频帧级理据的可解释音频仇恨言论数据集,我们构建了一个合成音频数据集来训练我们的模型。我们进一步在真实人类语音话语上验证了这些模型,发现E2E法在音频帧交并比(IoU)指标上优于级联法。此外,我们观察到,加入帧级理据能显著提升E2E法的仇恨言论检测准确率。免责声明:读者可能会遇到具有冒犯性或仇恨性质的内容,但鉴于本研究的性质,这一点无法避免。

英文摘要:

Research on hate speech has predominantly revolved around detection and interpretation from textual inputs, leaving verbal content largely unexplored. While there has been limited exploration into hate speech detection within verbal acoustic speech inputs, the aspect of interpretability has been overlooked. Therefore, we introduce a new task of explainable audio hate speech detection. Specifically, we aim to identify the precise time intervals, referred to as audio frame-level rationales, which serve as evidence for hate speech classification. Towards this end, we propose two different approaches: cascading and End-to-End (E2E). The cascading approach initially converts audio to transcripts, identifies hate speech within these transcripts, and subsequently locates the corresponding audio time frames. Conversely, the E2E approach processes audio utterances directly, which allows it to pinpoint hate speech within specific time frames. Additionally, due to the lack of explainable audio hate speech datasets that include audio frame-level rationales, we curated a synthetic audio dataset to train our models. We further validated these models on actual human speech utterances and found that the E2E approach outperforms the cascading method in terms of the audio frame Intersection over Union (IoU) metric. Furthermore, we observed that including frame-level rationales significantly enhances hate speech detection accuracy for the E2E approach. \textbf{Disclaimer} The reader may encounter content of an offensive or hateful nature. However, given the nature of the work, this cannot be avoided.

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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