限制容差关系的不完备可变粗糙集  

Incomplete variable rough set of limited tolerance relation

作　　者：郭嗣琮[1] 徐丽[1] 郑爱红 

机构地区：[1]辽宁工程技术大学理学院,辽宁阜新123000 [2]南京金城集团液压中心,江苏南京210000

出　　处：《辽宁工程技术大学学报（自然科学版）》2014年第7期988-991,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(61350003);教育部高校博士学科点专项科研基金资助项目(20102121110002)

摘　　要：针对不完备信息决策系统中信息引起的不相容性的问题,引进包含度,提出基于限制容差关系的可变粗糙集模型,并研究其相关性质.通过对限制容差关系的可变粗糙集模型和限制容差关系粗的糙集模型对比分析,结果表明:限制容差关系的可变粗糙集模型拥有更高的粗糙近似分类精度和粗糙近似分类似质量,通过实例说明该理论是可行的.Incomplete information for decision-making system incompatibility problems caused by information, the introduction of inclusion degree was proposed based on rough set model variable limited tolerance relation and its related properties were studied. This paper performed the comparison of the model followed by limited tolerance relation variable rough set model and the relationship between tolerance limit rough set analysis. The results show that the limited tolerance relation variable rough set model has a higher classification accuracy rough approximation and rough approximation like quality classification. An example illustrates that the theory is feasible.

关 键 词：粗糙集 不完备信息系统 限制容差关系 可变粗糙集 包含度 δ-粗糙近似 分类精度 分类质量 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]