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The network architecture of end-to-end (E2E) automatic speech recognition (ASR) can be classified into several models, including connectionist temporal classification (CTC), recurrent neural network transducer (RNN-T), attention mechanism,…

Sound · Computer Science 2023-05-31 Yui Sudo , Muhammad Shakeel , Brian Yan , Jiatong Shi , Shinji Watanabe

This paper presents an end-to-end deep learning model for Automatic Speech Recognition (ASR) that transcribes Nepali speech to text. The model was trained and tested on the OpenSLR (audio, text) dataset. The majority of the audio dataset…

Computation and Language · Computer Science 2024-06-27 Manish Dhakal , Arman Chhetri , Aman Kumar Gupta , Prabin Lamichhane , Suraj Pandey , Subarna Shakya

Contextual biasing (CB) improves automatic speech recognition for rare and unseen phrases. Recent studies have introduced dynamic vocabulary, which represents context phrases as expandable tokens in autoregressive (AR) models. This method…

Computation and Language · Computer Science 2025-06-04 Yui Sudo , Yosuke Fukumoto , Muhammad Shakeel , Yifan Peng , Chyi-Jiunn Lin , Shinji Watanabe

This paper proposes a novel label-synchronous speech-to-text alignment technique for automatic speech recognition (ASR). The speech-to-text alignment is a problem of splitting long audio recordings with un-aligned transcripts into…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-22 Yusuke Kida , Tatsuya Komatsu , Masahito Togami

Connectionist Temporal Classification (CTC) is a widely used method for automatic speech recognition (ASR), renowned for its simplicity and computational efficiency. However, it often falls short in recognition performance. In this work, we…

Audio and Speech Processing · Electrical Eng. & Systems 2025-02-17 Zengwei Yao , Wei Kang , Xiaoyu Yang , Fangjun Kuang , Liyong Guo , Han Zhu , Zengrui Jin , Zhaoqing Li , Long Lin , Daniel Povey

This paper proposes a method to relax the conditional independence assumption of connectionist temporal classification (CTC)-based automatic speech recognition (ASR) models. We train a CTC-based ASR model with auxiliary CTC losses in…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-11 Jumon Nozaki , Tatsuya Komatsu

Non-autoregressive models generate target words in a parallel way, which achieve a faster decoding speed but at the sacrifice of translation accuracy. To remedy a flawed translation by non-autoregressive models, a promising approach is to…

Computation and Language · Computer Science 2020-10-27 Pan Xie , Zhi Cui , Xiuyin Chen , Xiaohui Hu , Jianwei Cui , Bin Wang

Joint modeling of multi-speaker ASR and speaker diarization has recently shown promising results in speaker-attributed automatic speech recognition (SA-ASR).Although being able to obtain state-of-the-art (SOTA) performance, most of the…

Sound · Computer Science 2023-10-10 Yangze Li , Fan Yu , Yuhao Liang , Pengcheng Guo , Mohan Shi , Zhihao Du , Shiliang Zhang , Lei Xie

The field of image synthesis is currently flourishing due to the advancements in diffusion models. While diffusion models have been successful, their computational intensity has prompted the pursuit of more efficient alternatives. As a…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Zanlin Ni , Yulin Wang , Renping Zhou , Jiayi Guo , Jinyi Hu , Zhiyuan Liu , Shiji Song , Yuan Yao , Gao Huang

Streaming end-to-end automatic speech recognition (ASR) systems are widely used in everyday applications that require transcribing speech to text in real-time. Their minimal latency makes them suitable for such tasks. Unlike their…

Computation and Language · Computer Science 2021-04-30 Thibault Doutre , Wei Han , Chung-Cheng Chiu , Ruoming Pang , Olivier Siohan , Liangliang Cao

In this work, we introduce a novel local autoregressive translation (LAT) mechanism into non-autoregressive translation (NAT) models so as to capture local dependencies among tar-get outputs. Specifically, for each target decoding position,…

Computation and Language · Computer Science 2020-11-13 Xiang Kong , Zhisong Zhang , Eduard Hovy

Non-autoregressive (NAR) language models are known for their low latency in neural machine translation (NMT). However, a performance gap exists between NAR and autoregressive models due to the large decoding space and difficulty in…

Computation and Language · Computer Science 2024-07-03 Hao Wang , Tetsuro Morimura , Ukyo Honda , Daisuke Kawahara

Non-autoregressive translation (NAT) achieves faster inference speed but at the cost of worse accuracy compared with autoregressive translation (AT). Since AT and NAT can share model structure and AT is an easier task than NAT due to the…

Computation and Language · Computer Science 2020-07-20 Jinglin Liu , Yi Ren , Xu Tan , Chen Zhang , Tao Qin , Zhou Zhao , Tie-Yan Liu

Automatic pronunciation error detection (APED) plays an important role in the domain of language learning. As for the previous ASR-based APED methods, the decoded results need to be aligned with the target text so that the errors can be…

Audio and Speech Processing · Electrical Eng. & Systems 2021-05-06 Zhan Zhang , Yuehai Wang , Jianyi Yang

Non-autoregressive (NAR) text generation has attracted much attention in the field of natural language processing, which greatly reduces the inference latency but has to sacrifice the generation accuracy. Recently, diffusion models, a class…

Computation and Language · Computer Science 2023-05-16 Yifan Li , Kun Zhou , Wayne Xin Zhao , Ji-Rong Wen

In this work, we empirically confirm that non-autoregressive translation with an iterative refinement mechanism (IR-NAT) suffers from poor acceleration robustness because it is more sensitive to decoding batch size and computing device…

Computation and Language · Computer Science 2022-10-20 Qiang Wang , Xinhui Hu , Ming Chen

Existing approaches to neural machine translation are typically autoregressive models. While these models attain state-of-the-art translation quality, they are suffering from low parallelizability and thus slow at decoding long sequences.…

Computation and Language · Computer Science 2018-10-30 Chunqi Wang , Ji Zhang , Haiqing Chen

In recent years, Neural Machine Translation (NMT) has achieved notable results in various translation tasks. However, the word-by-word generation manner determined by the autoregressive mechanism leads to high translation latency of the NMT…

Computation and Language · Computer Science 2021-09-02 Chenze Shao , Yang Feng , Jinchao Zhang , Fandong Meng , Jie Zhou

In the domain of air traffic control (ATC) systems, efforts to train a practical automatic speech recognition (ASR) model always faces the problem of small training samples since the collection and annotation of speech samples are expert-…

Sound · Computer Science 2021-02-17 Yi Lin , Qin Li , Bo Yang , Zhen Yan , Huachun Tan , Zhengmao Chen

We present a novel approach to end-to-end automatic speech recognition (ASR) that utilizes pre-trained masked language models (LMs) to facilitate the extraction of linguistic information. The proposed models, BERT-CTC and BECTRA, are…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-02 Yosuke Higuchi , Tetsuji Ogawa , Tetsunori Kobayashi , Shinji Watanabe