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In the area of multi-domain speech recognition, research in the past focused on hybrid acoustic models to build cross-domain and domain-invariant speech recognition systems. In this paper, we empirically examine the difference in behavior…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-10 Thai-Son Nguyen , Sebastian Stüker , Alex Waibel

The number of end-to-end speech recognition models grows every year. These models are often adapted to new domains or languages resulting in a proliferation of expert systems that achieve great results on target data, while generally…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-21 Igor Gitman , Vitaly Lavrukhin , Aleksandr Laptev , Boris Ginsburg

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

Speech tokenization is crucial in digital speech processing, converting continuous speech signals into discrete units for various computational tasks. This paper introduces a novel speech tokenizer with broad applicability across downstream…

Machine Learning · Computer Science 2025-07-10 Wonjin Jung , Sungil Kang , Dong-Yeon Cho

This study reports our efforts to improve automatic recognition of suprasegmentals by fine-tuning wav2vec 2.0 with CTC, a method that has been successful in automatic speech recognition. We demonstrate that the method can improve the…

Computation and Language · Computer Science 2021-08-05 Jiahong Yuan , Neville Ryant , Xingyu Cai , Kenneth Church , Mark Liberman

Recently, the connectionist temporal classification (CTC) model coupled with recurrent (RNN) or convolutional neural networks (CNN), made it easier to train speech recognition systems in an end-to-end fashion. However in real-valued models,…

For end-to-end speech translation, regularizing the encoder with the Connectionist Temporal Classification (CTC) objective using the source transcript or target translation as labels can greatly improve quality metrics. However, CTC demands…

Computation and Language · Computer Science 2023-02-22 Biao Zhang , Barry Haddow , Rico Sennrich

A new type of End-to-End system for text-dependent speaker verification is presented in this paper. Previously, using the phonetically discriminative/speaker discriminative DNNs as feature extractors for speaker verification has shown…

Computation and Language · Computer Science 2017-01-04 Shi-Xiong Zhang , Zhuo Chen , Yong Zhao , Jinyu Li , Yifan Gong

In this study, we propose advancing all-neural speech recognition by directly incorporating attention modeling within the Connectionist Temporal Classification (CTC) framework. In particular, we derive new context vectors using time…

Computation and Language · Computer Science 2018-03-16 Amit Das , Jinyu Li , Rui Zhao , Yifan Gong

End-to-end diarization presents an attractive alternative to standard cascaded diarization systems because a single system can handle all aspects of the task at once. Many flavors of end-to-end models have been proposed but all of them…

Audio and Speech Processing · Electrical Eng. & Systems 2023-02-27 Federico Landini , Mireia Diez , Alicia Lozano-Diez , Lukáš Burget

Automatic classification of speech commands has revolutionized human computer interactions in robotic applications. However, employed recognition models usually follow the methodology of deep learning with complicated networks which are…

Current speaker anonymization methods, especially with self-supervised learning (SSL) models, require massive computational resources when hiding speaker identity. This paper proposes an effective and parameter-efficient speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-20 Xiaojiao Chen , Sheng Li , Jiyi Li , Hao Huang , Yang Cao , Liang He

End-to-end speech recognition is a promising technology for enabling compact automatic speech recognition (ASR) systems since it can unify the acoustic and language model into a single neural network. However, as a drawback, training of…

Computation and Language · Computer Science 2022-02-17 Yotaro Kubo , Shigeki Karita , Michiel Bacchiani

The mismatch of speech length and text length poses a challenge in automatic speech recognition (ASR). In previous research, various approaches have been employed to align text with speech, including the utilization of Connectionist…

Computation and Language · Computer Science 2025-10-14 Peng Fan , Wenping Wang , Fei Deng

For real-world deployment of automatic speech recognition (ASR), the system is desired to be capable of fast inference while relieving the requirement of computational resources. The recently proposed end-to-end ASR system based on…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-17 Yosuke Higuchi , Hirofumi Inaguma , Shinji Watanabe , Tetsuji Ogawa , Tetsunori Kobayashi

Generative recommendation (GR) models tokenize each action into a few discrete tokens (called semantic IDs) and autoregressively generate the next tokens as predictions, showing advantages such as memory efficiency, scalability, and the…

Information Retrieval · Computer Science 2025-10-27 Qiyong Zhong , Jiajie Su , Yunshan Ma , Julian McAuley , Yupeng Hou

Modern topic identification (topic ID) systems for speech use automatic speech recognition (ASR) to produce speech transcripts, and perform supervised classification on such ASR outputs. However, under resource-limited conditions, the…

Computation and Language · Computer Science 2017-07-12 Chunxi Liu , Jan Trmal , Matthew Wiesner , Craig Harman , Sanjeev Khudanpur

Continual Learning, also known as Lifelong Learning, aims to continually learn from new data as it becomes available. While prior research on continual learning in automatic speech recognition has focused on the adaptation of models across…

Machine Learning · Computer Science 2022-07-13 Muqiao Yang , Ian Lane , Shinji Watanabe

We study the problem of word-level confidence estimation in subword-based end-to-end (E2E) models for automatic speech recognition (ASR). Although prior works have proposed training auxiliary confidence models for ASR systems, they do not…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-12 David Qiu , Qiujia Li , Yanzhang He , Yu Zhang , Bo Li , Liangliang Cao , Rohit Prabhavalkar , Deepti Bhatia , Wei Li , Ke Hu , Tara N. Sainath , Ian McGraw

In this paper we proposed a novel Adversarial Training (AT) approach for end-to-end speech recognition using a Criticizing Language Model (CLM). In this way the CLM and the automatic speech recognition (ASR) model can challenge and learn…

Computation and Language · Computer Science 2018-11-05 Alexander H. Liu , Hung-yi Lee , Lin-shan Lee