arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1804.08050cs.CL
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用于端到端语音识别的多头解码器

Multi-Head Decoder for End-to-End Speech Recognition

Nagoya University(名古屋大学);Johns Hopkins University(约翰斯·霍普金斯大学)

Tomoki Hayashi, Shinji Watanabe, Tomoki Toda, Kazuya Takeda

摘要:

本文提出了一种新的网络结构称为多头解码器的端到端语音识别作为一个扩展的多头注意力模型。在多头注意力模型中,计算多个注意力,然后将它们整合为单个注意力。另一方面,我们提出的方法不是在注意力水平上进行整合,而是对每个注意力使用多个解码器,并整合它们的输出以生成最终输出。此外,为了使每个头部捕捉不同的模态,不同的注意力函数被用于每个头部,导致识别性能的提高与集成效应。为了评估我们所提出的方法的有效性,我们进行了实验评估使用语料库的自发日语。实验结果表明,我们提出的方法优于传统的方法,如基于位置和多头注意力模型,它可以捕获不同的语音/语言上下文内的注意力为基础的编码器-解码器框架。

英文摘要:

This paper presents a new network architecture called multi-head decoder for end-to-end speech recognition as an extension of a multi-head attention model. In the multi-head attention model, multiple attentions are calculated, and then, they are integrated into a single attention. On the other hand, instead of the integration in the attention level, our proposed method uses multiple decoders for each attention and integrates their outputs to generate a final output. Furthermore, in order to make each head to capture the different modalities, different attention functions are used for each head, leading to the improvement of the recognition performance with an ensemble effect. To evaluate the effectiveness of our proposed method, we conduct an experimental evaluation using Corpus of Spontaneous Japanese. Experimental results demonstrate that our proposed method outperforms the conventional methods such as location-based and multi-head attention models, and that it can capture different speech/linguistic contexts within the attention-based encoder-decoder framework.

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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