基于情感计算的虚拟教师模型设计与应用优势

The Design and Application Advantages of Virtual Teachers Model based on Affective Computing

虚拟教师可以模拟真实教师的教学功能,在虚拟教学情境下辅助教学。目前,虚拟教师的研究多集中于知识内容的交互,而情感交互领域的研究成果尚不丰富。文章在利用情感计算技术对学习者情感进行识别、分类、分析的基础上,结合真实环境中的教师特点,分析虚拟教师的情感表现,从面部表情、肢体姿势、声音、言语四方面设计虚拟教师行为表达模式,构建具有丰富情感表达的虚拟教师形象,制定教学过程中的应用策略,从而与学习者进行有效的情感交互。文章结合应用案例讨论基于情感计算的虚拟教师的应用优势与价值,以期为虚拟教师的研究与实践提供参考。

Virtual teachers can simulate real teachers’teaching functions and assist teaching in virtual teaching situations.At present,the research of virtual teachers mostly focuses on the interaction of knowledge content,but the research results in the emotional interaction field is not abundant.Based on the identification,classification,and analysis of learners’emotion by using affective computing technology,combining with teachers’characteristics in real environments,the paper analyzed virtual teachers’emotional performance,and designed virtual teachers’behavior expressions from facial expressions,body postures,voices and speeches.Meanwhile,a virtual teacher image with rich emotional expression was constructed,and the application strategies in teaching process was formulated,so as to carry out effective emotion interaction with learners.In addition,the application advantages and values of virtual teachers based on affective computing were discussed,expecting to provide reference for the research and practice of virtual teachers.