Scaling and Prompting for Improved End-to-End Spoken Grammatical Error Correction

Fuente: arXiv
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Auteurs principaux: Qian, Mengjie, Ma, Rao, Bannò, Stefano, Knill, Kate M., Gales, Mark J. F.
Format: Preprint
Publié: 2025
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author Qian, Mengjie
Ma, Rao
Bannò, Stefano
Knill, Kate M.
Gales, Mark J. F.
author_facet Qian, Mengjie
Ma, Rao
Bannò, Stefano
Knill, Kate M.
Gales, Mark J. F.
contents Spoken Grammatical Error Correction (SGEC) and Feedback (SGECF) are crucial for second language learners, teachers and test takers. Traditional SGEC systems rely on a cascaded pipeline consisting of an ASR, a module for disfluency detection (DD) and removal and one for GEC. With the rise of end-to-end (E2E) speech foundation models, we investigate their effectiveness in SGEC and feedback generation. This work introduces a pseudo-labelling process to address the challenge of limited labelled data, expanding the training data size from 77 hours to approximately 2500 hours, leading to improved performance. Additionally, we prompt an E2E Whisper-based SGEC model with fluent transcriptions, showing a slight improvement in SGEC performance, with more significant gains in feedback generation. Finally, we assess the impact of increasing model size, revealing that while pseudo-labelled data does not yield performance gain for a larger Whisper model, training with prompts proves beneficial.
format Preprint
id arxiv_https___arxiv_org_abs_2505_21137
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Scaling and Prompting for Improved End-to-End Spoken Grammatical Error Correction
Qian, Mengjie
Ma, Rao
Bannò, Stefano
Knill, Kate M.
Gales, Mark J. F.
Computation and Language
Sound
Audio and Speech Processing
Spoken Grammatical Error Correction (SGEC) and Feedback (SGECF) are crucial for second language learners, teachers and test takers. Traditional SGEC systems rely on a cascaded pipeline consisting of an ASR, a module for disfluency detection (DD) and removal and one for GEC. With the rise of end-to-end (E2E) speech foundation models, we investigate their effectiveness in SGEC and feedback generation. This work introduces a pseudo-labelling process to address the challenge of limited labelled data, expanding the training data size from 77 hours to approximately 2500 hours, leading to improved performance. Additionally, we prompt an E2E Whisper-based SGEC model with fluent transcriptions, showing a slight improvement in SGEC performance, with more significant gains in feedback generation. Finally, we assess the impact of increasing model size, revealing that while pseudo-labelled data does not yield performance gain for a larger Whisper model, training with prompts proves beneficial.
title Scaling and Prompting for Improved End-to-End Spoken Grammatical Error Correction
topic Computation and Language
Sound
Audio and Speech Processing
url https://arxiv.org/abs/2505.21137