Research And Design On Network Question Answering Of Intelligence Base On Distance Education

With the development of the Internet in China, people pay more attention to the distance education. The distance education means not only putting the learning information on the net, but also means mutual communication between students and educators. As a result the distance education system requires a systematic function of answering students'questions. Currently there are three main question-answering means which are e-mail, online discussion and key word searching. E-mail and online discussion waste a lot of educators and learners'resources. The third way of searching key-word needs students knowing certain skills of selecting keywords, as a result, creates them burden but has little effect. To solve the above problems, new technology and methodology must be considered.In the modern distance education and the network teaching, the automatic Question Answering system, which is more practical and easy to develop and to be maintained, is always to aim at the concrete curriculum. Therefore the questions proposed by the users are also relatively concentrated. We organize these questions to form the FAQ stored in the system, thereby we can enhance the accuracy and perform efficiency of the Intelligent Question Answering system.This paper designs and builds up a Chinese Natural Language intelligent Question Answering System, which is answers to the frequently asked questions of special curriculum called network operating system in computer science major. The system studies and imports the ICTCLAS, a retrieval tool, takes advantage of the Latent Semantic Analysis technology to retrieve selected information, avoids a fundamental synonym and polyseme problems in the conventional retrieval system and enhances the efficiency of selecting words and retrieval precision. The system adopts B/S pattern, which combine natural language disposal technology and the website development technology; mainly depend on natural language intelligent Question Answering, keyword retrieve and teachers'on-line explanation auxiliary, fully display Internet education superiority and enhance teaching proficiency and decrease educators' teaching burden.To compare the domestic question answer system with the international question answer system, this paper firstly points out that the shortcoming of the domestic system is the lack of advanced technology. Then, the article elaborates the technique principle about natural process, discusses and studies its key technique and the assistant means, carries on a detailed design to the system. Finally it gives the plan of system realization project, carries on a solid example test and makes a conclusion to the system and points out its vast research space room and practical value.