A framework of synthesizing tutoring conversation capability with web-based distance education courseware
A framework of synthesizing tutoring conversation capability with web-based distance education courseware
复制标题
一种基于网络远程教育课件的辅导会话能力综合框架
DOI：
10.1016/j.compedu.2003.09.002
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
A. Graesser
中科院分区：
文献类型：
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作者：
K. Song;Xiangen Hu;A. Olney;A. Graesser
而现有的学习环境在Web上缺乏高层次的互动性，我们已经开发了一个人的导师一样的教程会话系统的Web，提高了教育课件，通过混合主动对话与自然语言处理。会话辅导代理是由一个动画教师，潜在语义分析（LSA）模块，一个数据库与课程脚本，和对话管理器。在人类导师的情况下，学习者在自然语言中的贡献的意义与课程脚本中指定的问题或问题的预期答案的内容进行比较。LSA用于评估学习者输入和导师期望之间的概念匹配，而对话管理器确定导师如何通过从课程脚本中选择内容来自适应地响应学习者。可用的课件与教程对话系统的集成保证了现有的Web教程的可重用性，在课程脚本和LSA模块的修改最小的努力。因此，这种开发简化了更有价值的基于Web的培训课件的变化。
Whereas existing learning environments on the Web lack high level interactivity, we have developed a human tutor-like tutorial conversation system for the Web that enhances educational courseware through mixed-initiative dialog with natural language processing. The conversational tutoring agent is composed of an animated tutor, a Latent Semantic Analysis (LSA) module, a database with curriculum scripts, and a dialog manager. As in the case of human tutors, the meaning of learner's contributions in natural language are compared with the content of expected answers to questions or problems specified in curriculum scripts. LSA is used to evaluate the conceptual matches between learner input and tutor expectations, whereas the dialog manager determines how the tutor adaptively responds to the learner by selecting content from the curriculum script. The integration of available courseware with the tutorial dialog system guarantees the reusability of existing Web tutorials with minimal effort in the modification of the curriculum script and LSA module. This development thereby simplifies the change into more valuable Web based training courseware.