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arXiv · 2412.07937

Style-agnostic evaluation of ASR using multiple reference transcripts

Quinten McNamara·Miguel Ángel del Río Fernández·Nishchal Bhandari·Martin Ratajczak·Danny Chen·Corey Miller·Migüel Jetté
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Abstract

Word error rate (WER) as a metric has a variety of limitations that have plagued the field of speech recognition. Evaluation datasets suffer from varying style, formality, and inherent ambiguity of the transcription task. In this work, we attempt to mitigate some of these differences by performing style-agnostic evaluation of ASR systems using multiple references transcribed under opposing style parameters. As a result, we find that existing WER reports are likely significantly over-estimating the number of contentful errors made by state-of-the-art ASR systems. In addition, we have found our multireference method to be a useful mechanism for comparing the quality of ASR models that differ in the stylistic makeup of their training data and target task.

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Quinten McNamara, Miguel Ángel del Río Fernández, Nishchal Bhandari, Martin Ratajczak, Danny Chen, Corey Miller, Migüel Jetté. 2024-12-10. Style-agnostic evaluation of ASR using multiple reference transcripts. https://arxiv.org/abs/2412.07937

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