Can Generative Large Language Models Perform ASR Error Correction?

• URL: http://arxiv.org/abs/2307.04172v2
• Date: Fri, 29 Sep 2023 07:32:03 GMT
• Title: Can Generative Large Language Models Perform ASR Error Correction?
• Authors: Rao Ma, Mengjie Qian, Potsawee Manakul, Mark Gales, Kate Knill
• Abstract summary: generative large language models (LLMs) have been applied to a wide range of natural language processing tasks. In this paper we investigate using ChatGPT, a generative LLM, for ASR error correction. Experiments show that this generative LLM approach can yield performance gains for two different state-of-the-art ASR architectures.
• Score: 16.246481696611117
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: ASR error correction is an interesting option for post processing speech recognition system outputs. These error correction models are usually trained in a supervised fashion using the decoding results of a target ASR system. This approach can be computationally intensive and the model is tuned to a specific ASR system. Recently generative large language models (LLMs) have been applied to a wide range of natural language processing tasks, as they can operate in a zero-shot or few shot fashion. In this paper we investigate using ChatGPT, a generative LLM, for ASR error correction. Based on the ASR N-best output, we propose both unconstrained and constrained, where a member of the N-best list is selected, approaches. Additionally, zero and 1-shot settings are evaluated. Experiments show that this generative LLM approach can yield performance gains for two different state-of-the-art ASR architectures, transducer and attention-encoder-decoder based, and multiple test sets.

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