基于分布特征的异常成绩检测方法

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.

An Approach of Grade-Outlier Detection Based on its Distribution Characteristics

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 I...