Based on this situation,this paper firstly gives some basic definitions about the dimension summarizability,and represents its taxonomy.
在联机分析处理中,为了提高查询的响应速度,预聚合是一种常用的方法,但在已有的研究中,关于维度汇总性的研究还相当少。
Based on this condition,this paper gives some basic definitions about the dimension summarizability at first,and represents its taxonomy.
在联机分析处理中,为了提高查询的响应速度,预聚合是一种常用的方法,但如果不经过判断就随意使用预聚合方法,就可能导致汇总结果中存在重复计算或者遗漏,得出错误的分析结论。
The Key Technology of the Provincial Integration of the Attribute of the Different Scale Land Use Classification Map;
农用地分等成果省级汇总技术研究
Key technology for the provincial auto-integration of the attribute of different scale farmland using classification maps;
不同比例尺农用地分等图件数据自动汇总技术研究
To set up a system integration technology of agricultural land grading figure database based on retrospective analysis method, the connotation of retrospective analysis method was defined, the types of retrospective analysis method were compartmentalized.
为了建立系统的农用地分等追溯法汇总技术体系,定义了追溯法的内涵,划分了追溯法的类型,归纳了两个类型追溯法的步骤,并进行了示例分析和特点总结,同时讨论确定了汇总单元的划分方法和汇总单元等别、面积的确定方法以及汇总单元的属性链接规则。
Border matching and gathering of farmland classification is an important aspect in the farmland classification work,and relates the scientificity of farmland classification result.
农用地分等成果接边汇总是农用地分等工作的重要环节,关系到农用地分等成果的科学性。
A meta-analysis of the effect of problem-based learning on critical thinking;
以问题为基础学习对评判性思维效果的汇总分析(英文)