Research on classification method of answering questions in network classroom based on natural language processing technology

IF 0.4 Q4 EDUCATION & EDUCATIONAL RESEARCH
Lanlan Liu, Qiang Yu
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引用次数: 0

Abstract

In order to overcome the inaccuracy of the current research results of online classroom question-answering classification, a method of online classroom question-answering classification based on natural language processing technology is proposed. The entity relationship model of the network classroom question answering system is constructed, and the model is transformed into the relational data model, the network classroom question answering database is constructed. TF-IDF technology is used to extract curriculum keywords, construct attribute word set, use natural language processing technology to segment students' questions reasonably in the network classroom, convert the words into vectors, calculate the question similarity according to cosine theorem, and then return the answers with the highest degree of similarity to students in the same type of questions. Experimental results show that the classification accuracy of the proposed method is always above 96%, and the user satisfaction is above 94%, with high classification accuracy and user satisfaction.
基于自然语言处理技术的网络课堂答题分类方法研究
为了克服目前在线课堂问答分类研究成果的不准确性,提出了一种基于自然语言处理技术的在线课堂问答分类方法。构建了网络课堂问答系统的实体关系模型,并将该模型转化为关系数据模型,构建了网络课堂问答数据库。利用TF-IDF技术提取课程关键词,构建属性词集,利用自然语言处理技术对网络课堂中学生的问题进行合理分割,将单词转换为向量,根据余弦定理计算问题相似度,然后将相似度最高的答案返回给同一类型问题中的学生。实验结果表明,该方法的分类准确率始终在96%以上,用户满意度在94%以上,具有较高的分类准确率和用户满意度。
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来源期刊
CiteScore
1.60
自引率
6.20%
发文量
65
期刊介绍: IJCEELL is the journal of continuing engineering education, lifelong learning and professional development for scientists, engineers and technologists. It deals with continuing education and the learning organisation, virtual laboratories, interactive knowledge media, new technologies for delivery of education and training, future developments in continuing engineering education; continuing engineering education and lifelong learning in the field of management, and government policies relating to continuing engineering education and lifelong learning.
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