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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…

Sound · Computer Science 2018-11-02 Zhe Yuan , Zhuoran Lyu , Jiwei Li , Xi Zhou

We study reasoning tasks through a framework that integrates auto-regressive (AR) and non-autoregressive (NAR) language models. AR models, which generate text sequentially, excel at producing coherent outputs but often suffer from slow…

Artificial Intelligence · Computer Science 2025-09-26 Qihang Ai , Haiyun Jiang

Recently, attention-based encoder-decoder (AED) end-to-end (E2E) models have drawn more and more attention in the field of automatic speech recognition (ASR). AED models, however, still have drawbacks when deploying in commercial…

Sound · Computer Science 2021-04-22 Zhichao Wang , Wenwen Yang , Pan Zhou , Wei Chen

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

Efficient machine translation models are commercially important as they can increase inference speeds, and reduce costs and carbon emissions. Recently, there has been much interest in non-autoregressive (NAR) models, which promise faster…

Computation and Language · Computer Science 2022-05-05 Jindřich Helcl , Barry Haddow , Alexandra Birch

The recently proposed Conformer architecture has shown state-of-the-art performances in Automatic Speech Recognition by combining convolution with attention to model both local and global dependencies. In this paper, we study how to reduce…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-09 Maxime Burchi , Valentin Vielzeuf

Attention-based encoder-decoder (AED) models have shown impressive performance in ASR. However, most existing AED methods neglect to simultaneously leverage both acoustic and semantic features in decoder, which is crucial for generating…

Computation and Language · Computer Science 2023-05-24 Tian-Hao Zhang , Hai-Bo Qin , Zhi-Hao Lai , Song-Lu Chen , Qi Liu , Feng Chen , Xinyuan Qian , Xu-Cheng Yin

In this work, we propose novel decoding algorithms to enable streaming automatic speech recognition (ASR) on unsegmented long-form recordings without voice activity detection (VAD), based on monotonic chunkwise attention (MoChA) with an…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-16 Hirofumi Inaguma , Tatsuya Kawahara

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

Computation and Language · Computer Science 2018-11-13 Ruizhi Li , Xiaofei Wang , Sri Harish Mallidi , Takaaki Hori , Shinji Watanabe , Hynek Hermansky

Online Transformer-based automatic speech recognition (ASR) systems have been extensively studied due to the increasing demand for streaming applications. Recently proposed Decoder-end Adaptive Computation Steps (DACS) algorithm for online…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-27 Mohan Li , Catalin Zorila , Rama Doddipatla

A streaming style inference of encoder-decoder automatic speech recognition (ASR) system is important for reducing latency, which is essential for interactive use cases. To this end, we propose a novel blockwise synchronous decoding…

Audio and Speech Processing · Electrical Eng. & Systems 2022-01-26 Emiru Tsunoo , Chaitanya Narisetty , Michael Hentschel , Yosuke Kashiwagi , Shinji Watanabe

End-to-end automatic speech recognition (E2E-ASR) can be classified by its decoder architectures, such as connectionist temporal classification (CTC), recurrent neural network transducer (RNN-T), attention-based encoder-decoder, and…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-15 Yui Sudo , Muhammad Shakeel , Yosuke Fukumoto , Brian Yan , Jiatong Shi , Yifan Peng , Shinji Watanabe

Non-autoregressive (NAR) automatic speech recognition (ASR) models predict tokens independently and simultaneously, bringing high inference speed. However, there is still a gap in the accuracy of the NAR models compared to the…

Sound · Computer Science 2025-01-10 Ziyang Zhuang , Chenfeng Miao , Kun Zou , Ming Fang , Tao Wei , Zijian Li , Ning Cheng , Wei Hu , Shaojun Wang , Jing Xiao

In the present paper, an attempt is made to combine Mask-CTC and the triggered attention mechanism to construct a streaming end-to-end automatic speech recognition (ASR) system that provides high performance with low latency. The triggered…

Sound · Computer Science 2021-10-22 Huaibo Zhao , Yosuke Higuchi , Tetsuji Ogawa , Tetsunori Kobayashi

Recently, Handwritten Mathematical Expression Recognition (HMER) has gained considerable attention in pattern recognition for its diverse applications in document understanding. Current methods typically approach HMER as an…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Chenyu Liu , Jia Pan , Jinshui Hu , Baocai Yin , Bing Yin , Mingjun Chen , Cong Liu , Jun Du , Qingfeng Liu

The autoregressive (AR) models, such as attention-based encoder-decoder models and RNN-Transducer, have achieved great success in speech recognition. They predict the output sequence conditioned on the previous tokens and acoustic encoded…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-06 Zhengkun Tian , Jiangyan Yi , Jianhua Tao , Ye Bai , Shuai Zhang , Zhengqi Wen , Xuefei Liu

Attention-based encoder-decoder architectures such as Listen, Attend, and Spell (LAS), subsume the acoustic, pronunciation and language model components of a traditional automatic speech recognition (ASR) system into a single neural…

Autoregressive (AR) models, common in sequence generation, are limited in many biological tasks such as de novo peptide sequencing and protein modeling by their unidirectional nature, failing to capture crucial global bidirectional token…

Machine Learning · Computer Science 2025-12-12 Xiang Zhang , Jiaqi Wei , Zijie Qiu , Sheng Xu , Zhi Jin , ZhiQiang Gao , Nanqing Dong , Siqi Sun

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…

Audio and Speech Processing · Electrical Eng. & Systems 2019-10-22 Ruizhi Li , Xiaofei Wang , Sri Harish Mallidi , Shinji Watanabe , Takaaki Hori , Hynek Hermansky

Attention-based encoder-decoder, e.g. transformer and its variants, generates the output sequence in an autoregressive (AR) manner. Despite its superior performance, AR model is computationally inefficient as its generation requires as many…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-27 Keyu An , Zerui Li , Zhifu Gao , Shiliang Zhang