摘要： 关于时态数据库中有效时间不确定性的时态关系,Snodgrass采用概率的方法给出了不确定时刻的Before时态关系。该文定义了一种新的不确定时刻、不确定时间区间的同时关系,并给出了它们的交,运用同时关系对病历数据库进行挖掘。
关键词:
不确定性,
概率,
有效时间,
同时关系,
病历数据库
Abstract: About relation of valid-time indeterminacy in temporal database, Snodgrass used the approach of probability to define the Beforerelation of the indeterminate instant, based on which, this paper defines the new simul relation of indeterminate instant as well as indeterminateintervals, and provides their intersect, while mining the case databases upon the base of simul relations.
中图分类号:
桂现才,林嘉宜,彭宏. 基于概率的有效时间不确定的时态数据库挖掘[J]. , 2005, 31(12): 89-91.
GUI Xiancai1, LIN Jiayi2, PENG Hong2. Mining Temporal Database of Valid-time Indeterminacy Based on Probability[J]. , 2005, 31(12): 89-91.