Although significant progress has been made in developing methods for Grammatical Error Correction (GEC), addressing word choice improvements has been notably lacking and enhancing sentence expressivity by replacing phrases with advanced expressions is an understudied aspect. In this paper, we focus on this area and present our investigation into the task of incorporating the usage of idiomatic expressions in student writing. To facilitate our study, we curate extensive training sets and expert-annotated testing sets using real-world data and evaluate various approaches and compare their performance against human experts.

翻译：尽管在开发语法错误纠正（GEC）方法方面取得了显著进展，但在词汇选择改进方面仍然明显不足，而通过将短语替换为高级表达来增强句子表现力是一个研究不足的方面。本文聚焦于这一领域，针对在学生写作中融入习语表达使用的任务进行了研究。为便于开展研究，我们利用真实数据整理了大规模训练集和专家标注测试集，评估了多种方法，并将其性能与人类专家进行了比较。