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arXiv 2110.00560cs.CL
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利用外部数据改进语音文本的标点恢复

Improving Punctuation Restoration for Speech Transcripts via External Data

Dialpad Canada Inc.(加拿大Dialpad公司)

Xue-Yong Fu, Cheng Chen, Md Tahmid Rahman Laskar, Shashi Bhushan TN, Simon Corston-Oliver

摘要:

自动语音识别(ASR)系统通常不产生加标点的转录。为了使转录本更具有可读性并遵循下游语言模型的预期输入格式,有必要添加标点符号。在本文中,我们专门针对噪声文本(例如,电话对话场景)。为了利用可用的书面文本数据集,我们引入了一种基于n-gram语言模型的数据采样技术,以采样更多与我们的域内数据相似的训练数据。此外,我们提出了一个两阶段的微调方法,利用采样的外部数据以及我们的域内数据集的模型的基础上BERT。大量的实验表明,该方法优于基线的1:12%F1分数的改善。

英文摘要:

Automatic Speech Recognition (ASR) systems generally do not produce punctuated transcripts. To make transcripts more readable and follow the expected input format for downstream language models, it is necessary to add punctuation marks. In this paper, we tackle the punctuation restoration problem specifically for the noisy text (e.g., phone conversation scenarios). To leverage the available written text datasets, we introduce a data sampling technique based on an n-gram language model to sample more training data that are similar to our in-domain data. Moreover, we propose a two-stage fine-tuning approach that utilizes the sampled external data as well as our in-domain dataset for models based on BERT. Extensive experiments show that the proposed approach outperforms the baseline with an improvement of 1:12% F1 score.

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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