Large language models (LLMs) finetuned to follow human instruction have recently exhibited significant capabilities in various English NLP tasks. However, their performance in grammatical error correction (GEC), especially on languages other than English, remains significantly unexplored. In this work, we evaluate the abilities of instruction finetuned LLMs in Arabic GEC, a complex task due to Arabic's rich morphology. Our findings suggest that various prompting methods, coupled with (in-context) few-shot learning, demonstrate considerable effectiveness, with GPT-4 achieving up to $65.49$ F$_{1}$ score under expert prompting (approximately $5$ points higher than our established baseline). Despite these positive results, we find that instruction finetuned models, regardless of their size, are still outperformed by fully finetuned ones, even if they are significantly smaller in size. This disparity highlights substantial room for improvements for LLMs. Inspired by methods used in low-resource machine translation, we also develop a method exploiting synthetic data that significantly outperforms previous models on two standard Arabic benchmarks. Our best model achieves a new SOTA on Arabic GEC, with $73.29$ and $73.26$ F$_{1}$ on the 2014 and 2015 QALB datasets, respectively, compared to peer-reviewed published baselines.

对于阿拉伯语的语法错误纠正任务，研究发现使用各种提示方法和少量样本学习的指令微调大型语言模型具有显著的效果，但是无论规模大小，指令微调模型的性能仍然不及完全微调的模型，此差距指出了语言模型改进的空间。同时，借鉴低资源机器翻译方法，利用合成数据也能显著提升阿拉伯语语法错误纠正的性能， 在两个标准阿拉伯语数据集上创造了新的最佳结果，分别达到73.29和73.26的F1分数，相比于同行评审发表的基准模型。

超越英语：评估用于阿拉伯文语法错误纠正的LLMs