摘要
为使协同学习环境能提供合理的学习导航和灵活的感知处理,提出了嵌套式知识空间模型,其中包含知识域、知识域之间的4种关系和知识空间等.根据该模型建立的协同学习环境,可以对系统中的文档资料进行有效的组织和管理,帮助学习者找到学习目标以及所需的资料进行学习.为了消除用户在远程协同学习环境中的“孤独感”,在嵌套式知识空间模型的基础上,提出了协同学习环境中的多级感知处理模型.它包括两种感知方式:多层感知空间方式和定制监测方式.此外在感知处理模型中,为用户提供了信息过滤器和隐私保护器,可有效地进行信息过滤和隐私保护.
Arrangement and management for learning materials and awareness processing are key problems in the Web-based collaborative learning environment. In order to provide reasonable learning navigation and flexible awareness processing in a collaborative learning environment, a nested knowledge space model is presented, which includes concepts such as knowledge domain, four kinds of relations among knowledge domains and knowledge space, etc. Based on this model, a Web-based collaborative learning environment is established and learning materials in the system are organized and managed, which can help users to get their needed learning documents. To get rid of users' isolated feeling in the collaborative learning environment, a multi-levels awareness processing model based on the nested knowledge space model is presented, in which there are two awareness methods: the multi-levels awareness space method and the customized monitor method. In addition, information filter and privacy protector are provided, which can filter redundant information and protect users' privacies effectively. The prototype system shows that the methods can make learners find their learning goals and their materials easily and finish their learning quickly through awareness of other learners' information and mutual discussions.
出处
《计算机研究与发展》
EI
CSCD
北大核心
2005年第7期1159-1165,共7页
Journal of Computer Research and Development
基金
国家自然科学基金项目(60273040)
江苏省高等学校自然科学基金项目(02KJB520003)
关键词
计算机支持的协同学习
知识域
嵌套式知识空间模型
感知空间
多级感知处理
computer supported collaborative learning
knowledge domain
nested knowledge space model
awareness space
multi-levels awareness processing
