A Simple Recipe for Multilingual Grammatical Error Correction

• URL: http://arxiv.org/abs/2106.03830v1
• Date: Mon, 7 Jun 2021 17:47:04 GMT
• Title: A Simple Recipe for Multilingual Grammatical Error Correction
• Authors: Sascha Rothe, Jonathan Mallinson, Eric Malmi, Sebastian Krause, Aliaksei Severyn
• Abstract summary: This paper presents a recipe to train state-of-the-art multilingual Grammatical Error Correction (GEC) models. We first propose a language-agnostic method to generate a large number of synthetic examples. The second ingredient is to use large-scale multilingual language models.
• Score: 6.262434757334487
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This paper presents a simple recipe to train state-of-the-art multilingual Grammatical Error Correction (GEC) models. We achieve this by first proposing a language-agnostic method to generate a large number of synthetic examples. The second ingredient is to use large-scale multilingual language models (up to 11B parameters). Once fine-tuned on language-specific supervised sets we surpass the previous state-of-the-art results on GEC benchmarks in four languages: English, Czech, German and Russian. Having established a new set of baselines for GEC, we make our results easily reproducible and accessible by releasing a cLang-8 dataset. It is produced by using our best model, which we call gT5, to clean the targets of a widely used yet noisy lang-8 dataset. cLang-8 greatly simplifies typical GEC training pipelines composed of multiple fine-tuning stages -- we demonstrate that performing a single fine-tuning step on cLang-8 with the off-the-shelf language models yields further accuracy improvements over an already top-performing gT5 model for English.

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