中北大学学报（自然科学版）2011，Vol.32Issue(2)：169-173,5.DOI:10.3969/j.issn.1673-3193.2011.02.011
一种改进的概率关系模型及其应用研究
An Improved Probabilistic Relational Model and Its Application
李俊丽1
作者信息
- 1. 晋中学院计算机科学与技术学院,山西榆次030600
- 折叠
摘要
Abstract
Some improvements were made to solve the unreasonable projection problem of PRM model by classifying the tuples of probabilistic relational database into two classes, independent tuples and incompatible ones, and the projections of the both classes were conducted. The PRM was applied in a real house-agency management system. This system provided more intuitive data and faster running speed of its program. The data table made the characteristics of a record better understandable. The working efficiency of the whole system was improved.关键词
概率关系模型/元组/投影操作Key words
probabilistic relational model/ tuple/ projection分类
信息技术与安全科学引用本文复制引用
李俊丽..一种改进的概率关系模型及其应用研究[J].中北大学学报（自然科学版）,2011,32(2):169-173,5.
