基于语义的文本倾向性分析在高校教学评价中的应用

The Application of Text Orientation Based on Semantic in Teaching Evaluation

采用文本倾向性分析技术对各类评价主体的主观评价意见进行分析,收集评价主体对受评教师的教学内容、课程进程,授课方法等教学情况的反馈意见,对其进行抽取和摘要,并且分析出意见是褒义、贬义还是中性。目的是得到一个意见三元组:<主题,教师,表达词>。其中"主题"表示该句的评价对象,如"讲解"、"课件"等;"教师"即是该段文本所评价的教师;"表达词"表示承载该意见的词语,如"精辟"、"拖沓无聊"等。从而根据表达词的倾向性量化语言信息,使得教学评价更确切、更具体。

Using text orientation,evaluation of subjective views is analyzed.According to the feedback of teaching items,such as teaching content,curriculum process,teaching method,the evaluator's attitude is expressed.So that a comment triple: <subject,teacher,expression> is obtained.The 'subject' is evaluation item,like 'explanation','courseware';'teacher' is the evaluated teacher;'expression' is the word containing the evaluator's attitude,like 'brilliant','procrastinated and bored'.The teaching evaluation is more exact and specific by using the quantitative language information according to the orientation to express words.