A context-aware knowledge transferring strategy for CTC-based ASR
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Abstract (arXiv)
Non-autoregressive automatic speech recognition (ASR) modeling has received increasing attention recently because of its fast decoding speed and superior performance. Among representatives, methods based on the connectionist temporal classification (CTC) are still a dominating stream. However, the theoretically inherent flaw, the assumption of independence between tokens, creates a performance barrier for the school of works. To mitigate the challenge, we propose a context-aware knowledge transferring strategy, consisting of a knowledge transferring module and a context-aware training strategy, for CTC-based ASR. The former is designed to distill linguistic information from a pre-trained language model, and the latter is framed to modulate the limitations caused by the conditional independence assumption. As a result, a knowledge-injected context-aware CTC-based ASR built upon the wav2vec2.0 is presented in this paper. A series of experiments on the AISHELL-1 and AISHELL-2 datasets demonstrate the effectiveness of the proposed method.
Key facts. Cited by 12 papers in the map (data through 7 Oct 2026). Builds on 31 of its 38 references that are in the map. First posted on arXiv 12 Oct 2022.
Builds on
31 of 38 references.
References · 31
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19 more
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- 2021Relaxing the Conditional Independence Assumption of CTC-based ASR by Conditioning on Intermediate Predictionscited by 61
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- 2020Non-Autoregressive Transformer ASR with CTC-Enhanced Decoder Inputcited by 24
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Built on by
Citing papers per year: 2022: 1; 2023: 3; 2024: 3; 2025: 4; 2026: 1.
12 papers.
- 2024Encoding of lexical tone in self-supervised models of spoken languagecited by 22
- 2024A layer-wise analysis of Mandarin and English suprasegmentals in SSL speech modelscited by 18
- 2022BECTRA: Transducer-based End-to-End ASR with BERT-Enhanced Encodercited by 8
- 2024Temporal Order Preserved Optimal Transport-based Cross-modal Knowledge Transfer Learning for ASRcited by 3
- 2025Analyzing the relationships between pretraining language, phonetic, tonal, and speaker information in self-supervised speech modelscited by 3
- 2023Multiple Representation Transfer from Large Language Models to End-to-End ASR Systemscited by 2
- 2023HypR: A comprehensive study for ASR hypothesis revising with a reference corpuscited by 1
- 2025Cross-modal Knowledge Transfer Learning as Graph Matching Based on Optimal Transport for ASRcited by 1
- 2025LTA-L2S: Lexical Tone-Aware Lip-to-Speech Synthesis for Mandarin with Cross-Lingual Transfer Learningcited by 1
- 2023A Lexical-aware Non-autoregressive Transformer-based ASR Modelcited by 0
- 2025New Insights into Optimal Alignment of Acoustic and Linguistic Representations for Knowledge Transfer in ASRcited by 0
- 2026Optimal transport meets speech: a tutorial reviewcited by 0
- 2026Optimal transport meets speech: a tutorial review24 Sep 2026
- 2025LTA-L2S: Lexical Tone-Aware Lip-to-Speech Synthesis for Mandarin with Cross-Lingual Transfer Learning30 Sep 2025
- 2025New Insights into Optimal Alignment of Acoustic and Linguistic Representations for Knowledge Transfer in ASR6 Sep 2025
- 2025Analyzing the relationships between pretraining language, phonetic, tonal, and speaker information in self-supervised speech models12 Jun 2025
- 2025Cross-modal Knowledge Transfer Learning as Graph Matching Based on Optimal Transport for ASR19 May 2025
- 2024Temporal Order Preserved Optimal Transport-based Cross-modal Knowledge Transfer Learning for ASR3 Sep 2024
- 2024A layer-wise analysis of Mandarin and English suprasegmentals in SSL speech models24 Aug 2024
- 2024Encoding of lexical tone in self-supervised models of spoken language25 Mar 2024
- 2023HypR: A comprehensive study for ASR hypothesis revising with a reference corpus18 Sep 2023
- 2023Multiple Representation Transfer from Large Language Models to End-to-End ASR Systems7 Sep 2023
- 2023A Lexical-aware Non-autoregressive Transformer-based ASR Model18 May 2023
- 2022BECTRA: Transducer-based End-to-End ASR with BERT-Enhanced Encoder2 Nov 2022