Discussion on the key technologies of Intelligent Teaching System application in the era of artificial intelligence 2.0

In order to explore the problems of the key technology of intelligent teaching system in the era of artificial intelligence 2.0 and promote the development of intelligent teaching system better, we study the status and role of the four key technologies in intelligent teaching system. This paper takes four modules of intelligent teaching system as the objects, and discusses four key technologies supporting the application of intelligent teaching system, namely natural language processing, question answering system, expression recognition, educational data mining, etc. This paper discusses the status and the role of key technologies in the intelligent teaching system in the era of artificial intelligence 2.0, and the problems, causes and the necessity of solving in the application and development process of intelligent teaching system. The research results of this paper can provide a theoretical basis for the application of intelligent teaching system in the era of artificial intelligence 2.0, and standardize the orderly development of intelligent teaching system.