一种先验信息条件下的量化容差关系  

Quantitative Tolerance Relation of Prior Information

作　　者：王磊[1] 李文涛[1] 贺天宇[1] 

机构地区：[1]解放军陆军军官学院数学教研室,合肥230031

出　　处：《重庆理工大学学报（自然科学）》2014年第12期154-157,共4页Journal of Chongqing University of Technology：Natural Science

基　　金：陆军军官学院科研学术基金资助项目(2013XYJJ-017)

摘　　要：在量化容差关系的基础上,考虑了决策属性值对条件属性值概率分布的影响,综合利用已知信息和先验信息统计得到条件属性值的概率分布,提出了不完备信息系统下的一种先验信息条件下的量化容差关系,并通过一个实例验证了该量化容差关系的可行性。Based on quantitative tolerance relation, a quantitative tolerance relation of prior informa- tion has been proposed under the incomplete information system. The quantitative tolerance relation of prior information considered the influence of the decision attribute on the probability distributions of the condition attribute value. Known information and priori information were utilized to calculate the probability distribution of the condition attribute value. And then, an example shows that the quantita- tive tolerance relation of prior information has the ability to deal with the problem which contains null data.

关 键 词：粗糙集 量化容差关系 不完备信息系统 先验信息 决策属性 条件属性 

分 类 号：O29[理学—应用数学]