Research on Knowledge Sharing and generating metadata for CSCL

本研究的目的是：(A)生成学习实体的元数据，以支持e-Learning环境下的CSCL，并通过参考模型体现知识共享；(B)利用由协作学习案例和元数据组成的数据库，提取关于协作学习环境设计和教学的教育知识。研究结果如下：(1)对计算机支持的协作学习的基础进行了调查。(2)通过调查分析，我们发现了协作学习在设计和教学中的重要性。提出了一个工作流的组组成和描述系统。在此基础上，我们开发了教师用来图形化描述协作学习的编辑器。(3)基于对协作学习的论证，对协作学习的功能进行了梳理。在此基础上，提出并验证了文本聊天CSCL中协作学习描述元数据的形式。(4)提出了e-Learning中定位协作学习的描述框架。提出了将技术、环境、教学三个属性相结合的表现形式。(5)在协作学习空间的电子公告栏上，利用文本挖掘技术开发了能够进行信息收集的代理系统。

The purposes of this research are to (a) generate metadata of Learning Entity to support CSCL in e-Learning environment, and embodiment of the knowledge sharing by the reference model and to (b) extract the educational knowledge about a design and instruction of collaborative study environment using the data base that consists of collaborative learning cases with metadata. We got the following results.(1) We surveyed about bases of Computer Supported Collaborative Learning.(2)From the analysis of the survey, we found the importance in a design and instruction of collaborative learning. And we proposed group composition and the description system of a workflow. Based on this proposal, we developed the editor for a teacher to describe collaborative learning graphically.(3)We arranged about the function of collaborative learning based on the argument on it. We proposed and verified the collaborative learning description metadata form in the text chat CSCL based on this result.(4)We proposed the description framework for positioning collaborative learning in e-Learning. We proposed the expression form by the combination of the three attributes that are technology, environment, pedagogy.(5)We developed the agent system that can perform information gathering by text mining technology on the electronic bulletin board on collaborative Learning space.