Research On Design And Development Of Online Automatic Question Answering System

With the popularity of Internet and the rapid development of network technology, information technology and media technology, Online Education Teaching Mode emerged. Because the characteristics of the principal factors in learning, this mode is applicable in higher education much more. Online automatic question answering system is an indispensable component in the Network Platform of high quality courses, which plays an important role in improving the quality of teaching. Meantime, it is also an important supplement of Traditional Teaching Mode.This paper analyzed the current research of domestic and foreign online automatic question answering system, according to the important role of Q & A in teaching activities,constructed knowledge tree based on the course architecture, designed the search engine module of the system based on Lucene and designed a new dictionary due to Chinese word segmentation method of Lucene is insufficient; Meantime, classified the questions automatically based on Naive Bayes Classifier, and set some representative key words(key words included in the knowledge information) as core word increasing their role in the process of classification. Finally, designed and implemented an online automatic question answering system based on a good structure knowledge tree, aims at making the system more practical.