摘要
数据质量对于学生成绩具有十分重要的意义.本文将教育学原理与数据清洗技术相结合,提出了一种基于分布特征的异常成绩检测方法.在理论上论证了方法的合理性,并通过实验验证了方法的有效性.本文的工作不仅对于提高成绩管理系统的运行质量有直接的作用,而且为将数据质量研究应用于教育信息化领域提供了很好的开端.
Information Quality to Student grade has fundamental significance. Having combined the theory of pedagogy with data cleansing technique, we propose a detection approach of grade outliers based on distribution characteristics in this paper. The rationality of the approach has been argued and its availability has been verified through our experiment. The results of this paper not only have direct effect on improving the quality of grade management system, but also have provided a fine start to apply the study of Information quality to educational informationization field.
出处
《南华大学学报(自然科学版)》
2008年第4期7-9,21,共4页
Journal of University of South China:Science and Technology
基金
湖南省教育十五规划2003资助项目(XJK03CG021)
关键词
数据质量
数据清洗
异常成绩检测
Information Quality
Data Cleansing
Detection of Grade Outliers