This paper presents the development of an AI-based language learning platform Revita. It is a freely available intelligent online tutor, developed to support learners of multiple languages, from low-intermediate to advanced levels. It has been in pilot use by hundreds of students at several universities, whose feedback and needs are shaping the development. One of the main emerging features of Revita is the introduction of a system of linguistic constructs as the representation of domain knowledge. The system of constructs is developed in close collaboration with experts in language teaching. Constructs define the types of exercises, the content of the feedback, and enable the detailed modeling and evaluation of learning progress.
翻译:本文介绍了以AI为基础的语言学习平台Revita的开发情况,这是一个免费提供的智能在线教师,旨在支持从低中级到高级的多种语言的学习者,若干大学的数百名学生试用了这一平台,这些学生的反馈和需求正在影响着这一发展;Revita的主要新特点之一是采用语言构造系统作为域知识的体现;构建系统是与语言教学专家密切合作开发的;构建系统界定了练习类型、反馈内容,并能够对学习进展进行详细的建模和评估。