To Explore Case-based Reasoning Learning Performance Support System

With the development of information technology, Computer Based Education(CBE) is applied more and more widely in teaching activity. The development of CBE software and the study on its educational function has become a hot point in educational field. And the effective learning support system for students is one of the CBE development directions. Under the instruction of the constructivist learning theory, the computer technology associated with artificial intelligence provide effective learning support for students, create a student-oriented learning environment so that learning procedure of students is more personalized, more different, more multivariate and more collaborative, and promote students' ability of innovating and problem-solving.Based on analyzing current learning support system and existing problems, the paper has done the development research of the learning support system of case-based reasoning technology, which combines case-based reasoning technology with educational idea of learning support system. While using artificial intelligence case-based reasoning methods, the paper establishes a network protocol case study resource library, and studies on case representation, retrieval reasoning and effectiveness of learning support .Through the learning support system is applied in the course of computer network principles, the paper has discussed the way of learning support, which uses "learning by doing" as its ideological guidance, and the impact of the learning support function of the "timely learning" and "that the demand that should be" on teaching, which hope to bring about enlightenment and harvest for educators in a wider range of teaching practice. The structure of the paper is as follows:The first chapter has introduced project background, analyzed project feasibility, discussed project significance and objectives to be achieved.The second chapter summarizes the theory of establishing a learning support system based on constructivism. The situational awareness , case teaching as well as the theory of learning environment are all synthesized.The third chapter discusses the technical basis for system implementation and technical routes, analyzes the key case representation and case retrieval techniques which is adopted in the system..The fourth chapter discusses design and implementation procedure of the Learning Support System, including demand analysis, database design, module implementation and the key technology applications in the development process.The fifth chapter has a exploratory study on the application at the learning support system , the application of the research data have been summarized, reflection and looking forward to further research directions.