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Related papers: Distilling the Knowledge of BERT for CTC-based ASR

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Named entity recognition (NER) is frequently addressed as a sequence classification task where each input consists of one sentence of text. It is nevertheless clear that useful information for the task can often be found outside of the…

Computation and Language · Computer Science 2020-12-18 Jouni Luoma , Sampo Pyysalo

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

In this work, we explore a Connectionist Temporal Classification (CTC) based end-to-end Automatic Speech Recognition (ASR) model for the Myanmar language. A series of experiments is presented on the topology of the model in which the…

Machine Learning · Computer Science 2021-05-17 Khin Me Me Chit , Laet Laet Lin

Language modeling (LM) for automatic speech recognition (ASR) does not usually incorporate utterance level contextual information. For some domains like voice assistants, however, additional context, such as the time at which an utterance…

Computation and Language · Computer Science 2021-06-04 Richard Diehl Martinez , Scott Novotney , Ivan Bulyko , Ariya Rastrow , Andreas Stolcke , Ankur Gandhe

Semi-supervised learning has demonstrated promising results in automatic speech recognition (ASR) by self-training using a seed ASR model with pseudo-labels generated for unlabeled data. The effectiveness of this approach largely relies on…

Machine Learning · Computer Science 2021-02-17 Niko Moritz , Takaaki Hori , Jonathan Le Roux

Neural networks provide new possibilities to automatically learn complex language patterns and query-document relations. Neural IR models have achieved promising results in learning query-document relevance patterns, but few explorations…

Information Retrieval · Computer Science 2019-05-23 Zhuyun Dai , Jamie Callan

We propose a novel method to accelerate training and inference process of recurrent neural network transducer (RNN-T) based on the guidance from a co-trained connectionist temporal classification (CTC) model. We made a key assumption that…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-01 Yongqiang Wang , Zhehuai Chen , Chengjian Zheng , Yu Zhang , Wei Han , Parisa Haghani

Connectionist temporal classification (CTC)-based scene text recognition (STR) methods, e.g., SVTR, are widely employed in OCR applications, mainly due to their simple architecture, which only contains a visual model and a CTC-aligned…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Yongkun Du , Zhineng Chen , Hongtao Xie , Caiyan Jia , Yu-Gang Jiang

We compare self-supervised representation learning algorithms which either explicitly quantize the audio data or learn representations without quantization. We find the former to be more accurate since it builds a good vocabulary of the…

Computation and Language · Computer Science 2020-05-20 Alexei Baevski , Michael Auli , Abdelrahman Mohamed

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

Transcription or sub-titling of open-domain videos is still a challenging domain for Automatic Speech Recognition (ASR) due to the data's challenging acoustics, variable signal processing and the essentially unrestricted domain of the data.…

Audio and Speech Processing · Electrical Eng. & Systems 2018-04-27 Shruti Palaskar , Ramon Sanabria , Florian Metze

Streaming automatic speech recognition (ASR) is very important for many real-world ASR applications. However, a notable challenge for streaming ASR systems lies in balancing operational performance against latency constraint. Recently, a…

Sound · Computer Science 2024-09-17 Wenbo Zhao , Ziwei Li , Chuan Yu , Zhijian Ou

Automatic speech recognition (ASR) tasks are resolved by end-to-end deep learning models, which benefits us by less preparation of raw data, and easier transformation between languages. We propose a novel end-to-end deep learning model…

Audio and Speech Processing · Electrical Eng. & Systems 2018-10-31 Xinpei Zhou , Jiwei Li , Xi Zhou

In this work, we propose a streaming AV-ASR system based on a hybrid connectionist temporal classification (CTC)/attention neural network architecture. The audio and the visual encoder neural networks are both based on the conformer…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-04 Pingchuan Ma , Niko Moritz , Stavros Petridis , Christian Fuegen , Maja Pantic

Language models (LMs) pre-trained on massive amounts of text, in particular bidirectional encoder representations from Transformers (BERT), generative pre-training (GPT), and GPT-2, have become a key technology for many natural language…

Computation and Language · Computer Science 2021-10-04 Xianrui Zheng , Chao Zhang , Philip C. Woodland

We previously proposed contextual spelling correction (CSC) to correct the output of end-to-end (E2E) automatic speech recognition (ASR) models with contextual information such as name, place, etc. Although CSC has achieved reasonable…

Sound · Computer Science 2023-02-23 Xiaoqiang Wang , Yanqing Liu , Jinyu Li , Sheng Zhao

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…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-18 Frank Zhang , Yongqiang Wang , Xiaohui Zhang , Chunxi Liu , Yatharth Saraf , Geoffrey Zweig

This paper addresses the observed performance gap between automatic speech recognition (ASR) systems based on Long Short Term Memory (LSTM) neural networks trained with the connectionist temporal classification (CTC) loss function and…

Computation and Language · Computer Science 2018-05-24 Jayadev Billa

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

In this paper, we propose to improve end-to-end (E2E) spoken language understand (SLU) in an RNN transducer model (RNN-T) by incorporating a joint self-conditioned CTC automatic speech recognition (ASR) objective. Our proposed model is akin…

Machine Learning · Computer Science 2025-01-06 Vishal Sunder , Eric Fosler-Lussier