摘要
封闭数据立方体利用元组间的关联,除去冗余信息,在减小数据立方体体积的同时,避免了查询时的解压缩。从源数据的分组角度对封闭数据立方体概念进行了解释,并在此基础上详细分析了由于源数据的更新而导致的对应封闭数据立方体的更新过程,给出了更新算法的框架。
Closed Data Cube removes redundant information by using the correlation between tuples.This method not only reduces the volume of datacube, but also avoids the decompression while inquiring.This paper explains the concept of closed data cube from the perspectives of grouping of source data, and detailedly analyzing the updating process of the corresponding closed data cube due to the update of the source data. It is given the framework of the updating algorithm.
出处
《乐山师范学院学报》
2013年第5期49-51,共3页
Journal of Leshan Normal University
基金
福建省教育厅A类项目(JA12492S)
