Design and Development of "Virtual AI Teacher" System Based on NLP

As one of the main research directions of artificial intelligence (AI), natural language processing (NLP) contributes to the development of the education industry in the fields of educational application development, teaching text processing, and teaching question and answer. Based on the machine reading comprehension (MRC) technology in NLP, this research has designed and developed a knowledge question-answering system for teaching material content, and combined the "Pagebook" knowledge index function, teaching content voice interaction mode, etc., to form a "virtual AI teacher" to assist students in learning. This study mainly introduces MRC model building and training, AIQA data set building, "Pagebook" and voice interaction interface development. The main application object of this study is primary and secondary school students. It is applied to the in-class and out-of-class scenes of AI popularization education. The system scheme of "virtual AI teacher" also supports the customization and expansion of teaching in other subjects.