数据仓库中的数据清理方法研究

Methods for Data Cleaning in Data Warehouse

阐述了数据清理的概念和意义,介绍了缺失值修补和孤立点识别采用的主要方法,并指出有待进一步研究的问题。

This paper elaborates the concept and significance of data cleaning; introduces the main methods used in repairing the missing data and detecting theoutliers, and identifiesthe directions for future study.