Collaborative Research: Developing a Learner-Centered Metathesaurus for Science, Mathematics, Engineering and Technology Education

这个合作项目（与加州大学伯克利分校的人员合作）正在研究创建一个以学习者为中心的元词典，该元词典基于对学习者与两个学习资源（数学论坛和www.smete.org）之间交易的分析。目前正在考虑三种相互作用模式。第一个涉及许多学生对同一个问题（数学论坛的“每周问题”）的回答的数据。第二种互动模式涉及学习者和专家之间的交易数据（数学论坛的“问数学博士”功能）。研究中的最后一种交互模式使用第三种资源www.smete.org上的馆藏，学习者使用的更多是传统的图书馆搜索-检索模式。以查看和选择的资源的形式提供的其他反馈信息可以在学习者的语言和资源元数据之间构建映射，这有可能允许跨领域边界扩展元词典。

This collaborative project (with personnel at the University of California Berkeley) is investigating the creation of a learner-centered metathesaurus based on the analysis of transactions between learners and two learning resources - the Math Forum and www.smete.org. Three modes of interaction are being considered. The first involves data in which many students respond to the same problem (the "Problem of the Week" at the Math Forum). The second interactional mode involves data from transactions between learners and experts (the Math Forum's "Ask Dr. Math" feature). The final interactional mode under study uses collections at a third resource, www.smete.org, where learner usage is more in the traditional library mode of search-retrieve. Additional feedback information in the form of the viewed and selected resources enables the construction of a map between the learners' language and resource metadata, which has potential to permit the extension of the metathesaurus across domain boundaries.