多粒度邻域粗糙直觉模糊集模型

摘要

The combination of the multi-granulation neighborhood rough set and the intuitionistic fuzzy set is further researched in this paper. Firstly, the concepts of the intuitionistic fuzzy covering-based rough membership and non-membership are defined for dealing with the heterogeneous data including categorical attributes and numerical attributes. Secondly, a multi-granulation neighborhood rough intuitionistic fuzzy set model is established based on different attribute set sequences and different neighborhood radii. Then, the properties of multi-granulation neighborhood rough intuitionistic fuzzy set are discussed. Next, the approximate sets of the optimistic and pessimistic multi-granulation neighborhood rough intuitionistic fuzzy sets are constructed and their properties are discussed. Finally, these models are illustrated with examples. Example analysis shows the models can handle the heterogeneous data including categorical attributes and numerical attributes more accurately.%针对名义型属性和数值型属性并存的混合型数据,结合多粒度邻域粗糙集和直觉模糊集,分别定义模糊覆盖粗糙隶属度和非隶属度.基于不同的属性集序列和不同的邻域半径,构建多粒度邻域粗糙直觉模糊集模型,证明模型相关性质.然后提出乐观和悲观多粒度邻域粗糙直觉模糊集的近似集,并讨论模型性质.最后使用文中模型计算实例,说明其能较好地解决名义型属性和数值型属性的混合型数据的处理问题.