Research On Peer-model In CSCL

With the popularization of network technology and the improvement in the level of educational informatization, the research and application on CSCL has been a hot spot in education technology field. It support the interaction between the learning peers through computer networks to conduct collaborative learning, and the appropriate forms of group formation is the prerequisite condition in developing collaborative learning smoothly. The different forms of group formation produce different peer relationship and the group structure that affect the quality of the groups. So it is very important to find appropriate learning peer for the formation of the collaborative learning group, and can directly affect the learning efficiency in CSCL.However, the research on CSCL consists of operating methods, strategies and assessment. But the collaborative group formation methods had been neglected. Firstly, there is a lack of comprehensive consideration for the factor in forming collaborative learning group, and there is a lack of in-depth research on the expression of some main information of the learner. Secondly, it does not take into account the collaborative capability in the existing partnership model, and it can ont reflect the relationship between the partners. Thirdly, the information centralized memory of the learner influences the student modify their own information. Fourthly, the formation of the learning group is an optimization project, but the current research lack the effective optimization algorithm.In the thesis, we do some research on the peer model in CSCL. The research work includes the following aspects:Firstly, the paper analyzes the main factors to select peer in CSCL, and the peer model which includes the dynamic collaborative information is built. It describes formally the peer model, and researches the expression of dynamic and collaborative information on peer such as the level of knowledge, cognitive capability; collaborative capability. Secondly, the paper researches how to apply FOAF to peer model, which contain the extension of FOAF vocabulary, the FOAF expression of peer model, the network frame of peer model.Thirdly, the paper analyzes the character of the formation of learning group, and put forward the algorithm to form the learning group which based on Ant Colony Algorithm and K-means algorithm.Finally , the tests contain the display on peer model network based on FOAF and the algorithm to form the learning group are designed on the foundation of the works mentioned above, whose result suggests the research on peer model in CSCL provide a feasible and effective method.Consequently, the research on peer model in CSCL will improve the organize method in CSCL and the efficiency of collaborative learning, as well as accelerate growth of CSCL. Moreover it has positive meaning to build the virtual study community.