基于元组存在性的概率数据模型研究

Probabilistic Data Model Based on Existence of Tuple

随着信息与通讯技术的快速发展,数据管理正面临着越来越多的挑战,其中之一就是数据的不确定性。提出一种基于元组存在性的概率数据模型(PDMET),将该模型与目前存在的模型相比较,并证明了该模型的完整性,同时提出相应的概率关系代数和概率数据库查询算法。

With the development of ICT,data management has meet more and more challenge,one of challenge is uncertainty of data.This paper proposed a probabilistic data model based on existence of tuple,compared with other models,this model was proved to be complete,and we proposed corresponding probabilistic relational algebra and query algorithm.