Study On Application Of Bayesian Network In Long-distance Teaching System

The rapid development of information technology for the people's way of learning and education has brought a revolution. Modern online long-distance learning network to the opening of the breadth and flexibility of the community to attract more and more educated. This makes Internet-based educational methods and learning environment for distance learning system of hot spots.This paper aims to evaluate the Bayesian network technology in the application of long-distance learning system. As student model in the system play a decisive role, so this paper mainly studies the application of Bayesian network technology in the student model construction. Aim is to find a Bayesian network technology will be used to facilitate the students the field of modeling methods, in order to improve the system of secondary model uncertainty information processing capabilities.This article has first analyzed the long-distance teaching development present situation and the existence question, proposed the personalization, the compatible long-distance teaching system will be in the next long-distance teaching research hot spot and the difficulty.Second on the Bayesian network related theory, proposed the use of Bayesian network and coverage model with the establishment of student model. Uncertainty from the information processing capabilities and practical point of view of comparing several different systems modeling technology students, concluded: Bayesian networks student model is feasible.Then use the Bayesian network to the students courses in the master model further research and analysis, and give the corresponding framework and parameters. Proposed an algorithm using Bayesian inference - Pearls sampling method. Through examples and the corresponding results show that the proposed algorithm is simple, practical method, the effective application.Finally, the system is achieving the overall framework, and the rest of the system and some of the specific technology system, has carried on the principled analysis.