An AI Framework to Teach English as a Foreign Language: CSIEC

Computer Simulation in Educational Communication (CSIEC) is not only an intelligent web-based human-computer dialogue system with natural language for English instruction but also a learning assessment system for learning and teachers. Its multiple functions-including grammar-based gap-filling exercises, scenario show, free chatting, and chatting on a given topic-can satisfy the various requirements for students with different backgrounds and learning abilities. After a brief explanation of the conception of the dialogue system, as well as a survey of related works, I will illustrate the system structure and describe its pedagogical functions with the underlying AI techniques, such as natural language processing and rule-based reasoning, in detail. I will summarize the five Internet usage with in a six-month period and its integration into English classes in universities and middle schools. The evaluation findings about the class integration show that the chatting function has been improved and frequently utilized by users, and the application of the CSIEC system on English instruction can motivate learners to practice English and enhance their learning process. Finally, I will conclude with potential improvements.