摘要
用基于限制容差关系的扩充粗集模型对不完备信息系统进行分析,找出各个对象间的依赖关系,将对象进行约简。用基于集对分析方法的改进集对粗集模型对已进行了对象约简的不完备信息系统进行分析,找出各个属性之间的依赖关系,进一步进行属性约简。结合一个实际例子加以分析,说明这种限制容差关系模型和集对分析方法相结合的方法对处理不完备信息系统合理有效。
The IIS （incomplete information systems） with limited tolerance relation is analyzed. The object dependency is found out and the objects are reduced. Then the IIS after the object reduction is investigated through the set pair analysis. The attribute dependency is obtained and the attributes are further reduced. Through an example, it is verified that the new method combined with the limited tolerance relation and the set pair analysis is reasonable and effective.
出处
《江苏科技大学学报（自然科学版）》
CAS
北大核心
2007年第2期49-53,共5页
Journal of Jiangsu University of Science and Technology:Natural Science Edition
基金
江苏省高校自然科学基金(02KJA120001)
关键词
知识依赖
不完备信息系统
限制容差关系
集对分析
knowledge dependency
incomplete information system
limited tolerance relation
set pair analysis
