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Automatic speech recognition (ASR) systems typically rely on an external endpointer (EP) model to identify speech boundaries. In this work, we propose a method to jointly train the ASR and EP tasks in a single end-to-end (E2E) multitask…

声音 · 计算机科学 2023-02-16 Shaan Bijwadia , Shuo-yiin Chang , Bo Li , Tara Sainath , Chao Zhang , Yanzhang He

Recently, end-to-end speech recognition with a hybrid model consisting of the connectionist temporal classification(CTC) and the attention encoder-decoder achieved state-of-the-art results. In this paper, we propose a novel CTC decoder…

声音 · 计算机科学 2018-11-02 Zhe Yuan , Zhuoran Lyu , Jiwei Li , Xi Zhou

In this work, we first show that on the widely used LibriSpeech benchmark, our transformer-based context-dependent connectionist temporal classification (CTC) system produces state-of-the-art results. We then show that using wordpieces as…

音频与语音处理 · 电气工程与系统科学 2020-08-18 Frank Zhang , Yongqiang Wang , Xiaohui Zhang , Chunxi Liu , Yatharth Saraf , Geoffrey Zweig

We propose two approaches for speaker adaptation in end-to-end (E2E) automatic speech recognition systems. One is Kullback-Leibler divergence (KLD) regularization and the other is multi-task learning (MTL). Both approaches aim to address…

计算与语言 · 计算机科学 2019-01-07 Ke Li , Jinyu Li , Yong Zhao , Kshitiz Kumar , Yifan Gong

End-to-end (E2E) models have shown to outperform state-of-the-art conventional models for streaming speech recognition [1] across many dimensions, including quality (as measured by word error rate (WER)) and endpointer latency [2]. However,…

Conventional automatic speech recognition (ASR) systems trained from frame-level alignments can easily leverage posterior fusion to improve ASR accuracy and build a better single model with knowledge distillation. End-to-end ASR systems…

计算与语言 · 计算机科学 2019-07-03 Gakuto Kurata , Kartik Audhkhasi

End-to-end (E2E) modeling is advantageous for automatic speech recognition (ASR) especially for Japanese since word-based tokenization of Japanese is not trivial, and E2E modeling is able to model character sequences directly. This paper…

计算与语言 · 计算机科学 2021-06-10 Shigeki Karita , Yotaro Kubo , Michiel Adriaan Unico Bacchiani , Llion Jones

Recently, connectionist temporal classification (CTC)-based end-to-end (E2E) automatic speech recognition (ASR) models have achieved impressive results, especially with the development of self-supervised learning. However, E2E ASR models…

音频与语音处理 · 电气工程与系统科学 2023-12-15 Keqi Deng , Philip C. Woodland

Recent advances in deep learning and automatic speech recognition (ASR) have enabled the end-to-end (E2E) ASR system and boosted the accuracy to a new level. The E2E systems implicitly model all conventional ASR components, such as the…

Attention-based methods and Connectionist Temporal Classification (CTC) network have been promising research directions for end-to-end (E2E) Automatic Speech Recognition (ASR). The joint CTC/Attention model has achieved great success by…

音频与语音处理 · 电气工程与系统科学 2019-10-22 Ruizhi Li , Xiaofei Wang , Sri Harish Mallidi , Shinji Watanabe , Takaaki Hori , Hynek Hermansky

Multilingual end-to-end (E2E) models have shown great promise in expansion of automatic speech recognition (ASR) coverage of the world's languages. They have shown improvement over monolingual systems, and have simplified training and…

音频与语音处理 · 电气工程与系统科学 2019-09-13 Anjuli Kannan , Arindrima Datta , Tara N. Sainath , Eugene Weinstein , Bhuvana Ramabhadran , Yonghui Wu , Ankur Bapna , Zhifeng Chen , Seungji Lee

In this paper, we present an end-to-end automatic speech recognition system, which successfully employs subword units in a hybrid CTC-Attention based system. The subword units are obtained by the byte-pair encoding (BPE) compression…

音频与语音处理 · 电气工程与系统科学 2018-09-07 Zhangyu Xiao , Zhijian Ou , Wei Chu , Hui Lin

Connectionist temporal classification (CTC) is widely used for maximum likelihood learning in end-to-end speech recognition models. However, there is usually a disparity between the negative maximum likelihood and the performance metric…

计算与语言 · 计算机科学 2017-12-20 Yingbo Zhou , Caiming Xiong , Richard Socher

End-to-end (E2E) automatic speech recognition (ASR) methods exhibit remarkable performance. However, since the performance of such methods is intrinsically linked to the context present in the training data, E2E-ASR methods do not perform…

音频与语音处理 · 电气工程与系统科学 2024-01-22 Yui Sudo , Muhammad Shakeel , Yosuke Fukumoto , Yifan Peng , Shinji Watanabe

The advances in attention-based encoder-decoder (AED) networks have brought great progress to end-to-end (E2E) automatic speech recognition (ASR). One way to further improve the performance of AED-based E2E ASR is to introduce an extra text…

声音 · 计算机科学 2021-10-26 Wei Wang , Shuo Ren , Yao Qian , Shujie Liu , Yu Shi , Yanmin Qian , Michael Zeng

End-to-end (E2E) Automatic Speech Recognition (ASR) models are trained using paired audio-text samples that are expensive to obtain, since high-quality ground-truth data requires human annotators. Voice search applications, such as digital…

计算与语言 · 计算机科学 2025-06-09 Christophe Van Gysel , Maggie Wu , Lyan Verwimp , Caglar Tirkaz , Marco Bertola , Zhihong Lei , Youssef Oualil

Despite the rapid progress of end-to-end (E2E) automatic speech recognition (ASR), it has been shown that incorporating external language models (LMs) into the decoding can further improve the recognition performance of E2E ASR systems. To…

计算与语言 · 计算机科学 2022-04-13 Jinchuan Tian , Jianwei Yu , Chao Weng , Yuexian Zou , Dong Yu

End-to-end (E2E) speech recognition architectures assemble all components of traditional speech recognition system into a single model. Although it simplifies ASR system, it introduces contextual ASR drawback: the E2E model has worse…

计算与语言 · 计算机科学 2022-02-21 Zhengyi Zhang , Pan Zhou

Recently, self-supervised pretraining has achieved impressive results in end-to-end (E2E) automatic speech recognition (ASR). However, the dominant sequence-to-sequence (S2S) E2E model is still hard to fully utilize the self-supervised…

音频与语音处理 · 电气工程与系统科学 2021-12-15 Keqi Deng , Songjun Cao , Yike Zhang , Long Ma

Advances in machine learning have made it possible to perform various text and speech processing tasks, such as automatic speech recognition (ASR), in an end-to-end (E2E) manner. E2E approaches utilizing pre-trained models are gaining…

音频与语音处理 · 电气工程与系统科学 2024-06-07 Yukiya Hono , Koh Mitsuda , Tianyu Zhao , Kentaro Mitsui , Toshiaki Wakatsuki , Kei Sawada