Reasoning Mechanism Research of an Intelligence Question Answering System Based on the Theory of Expert System

With the development of the education model,the traditional face to face answers inquiring model has changed to the Internet/Internat based answers inquiring model.How to use the IQAS(Intelligence Question Answering System) to not only make the students obtaining answers more quickly,but also help the teachers saving their times,has became the key point on researching a IQAS.The model of the IQAS is introduced,which is based on the theory of the expert system;and doing a research on the reasoning mechanism of the model,and then put out focus on the constructing method of a rule-based knowledge database.In a certain extent,the extensibility and the intelligence to the system are greatly enhanced.