Improving CTC-based ASR Models with Gated Interlayer Collaboration
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Abstract (arXiv)
The CTC-based automatic speech recognition (ASR) models without the external language model usually lack the capacity to model conditional dependencies and textual interactions. In this paper, we present a Gated Interlayer Collaboration (GIC) mechanism to improve the performance of CTC-based models, which introduces textual information into the model and thus relaxes the conditional independence assumption of CTC-based models. Specifically, we consider the weighted sum of token embeddings as the textual representation for each position, where the position-specific weights are the softmax probability distribution constructed via inter-layer auxiliary CTC losses. The textual representations are then fused with acoustic features by developing a gate unit. Experiments on AISHELL-1, TEDLIUM2, and AIDATATANG corpora show that the proposed method outperforms several strong baselines.
Key facts. Cited by 4 papers in the map (data through 14 Oct 2026). Builds on 30 of its 45 references that are in the map. First posted on arXiv 25 May 2022.
Builds on
30 of 45 references.
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18 more
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Built on by
Citing papers per year: 2023: 3; 2024: 0; 2025: 1.
4 papers.
- 2023Improving Massively Multilingual ASR With Auxiliary CTC Objectivescited by 31
- 2023LAE-ST-MoE: Boosted Language-Aware Encoder Using Speech Translation Auxiliary Task for E2E Code-switching ASRcited by 6
- 2023SSHR: Leveraging Self-supervised Hierarchical Representations for Multilingual Automatic Speech Recognitioncited by 4
- 2025MGSC: A Multi-granularity Consistency Framework for Robust End-to-end Asrcited by 0
- 2025MGSC: A Multi-granularity Consistency Framework for Robust End-to-end Asr20 Aug 2025
- 2023SSHR: Leveraging Self-supervised Hierarchical Representations for Multilingual Automatic Speech Recognition29 Sep 2023
- 2023LAE-ST-MoE: Boosted Language-Aware Encoder Using Speech Translation Auxiliary Task for E2E Code-switching ASR28 Sep 2023
- 2023Improving Massively Multilingual ASR With Auxiliary CTC Objectives24 Feb 2023