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为了更好地处理不完备信息系统,对改进粗糙集模型中的容差关系和量化容差关系进行了分析,提出了一种新的量化容差关系.新量化容差关系从已知属性和未知属性关联的角度,考虑不同属性取值之间的相吸性和相斥性,结合泛逻辑中的广义相关系数,定义属性间的广义相关因子,在新量化容差相似度计算中使用该广义相关因子参与计算,并给出了具体的计算方法,证明了新的量化容差关系的基本性质.最后通过实例对该量化容差关系进行了验证.
In order to deal with the incomplete information system better, the relationship between tolerance and quantization tolerance in the improved rough set model is analyzed, and a new quantitative tolerance relationship is proposed. The relationship between the new quantitative tolerance and the known tolerance In the view of unknown attribute association, considering the mutual attraction and repulsion between the values of different attributes, the generalized correlation coefficient between attributes is defined in combination with the generalized correlation coefficient in pan-logic, and the new correlation coefficient is used in the calculation of new quantitative tolerance similarity The generalized correlation factor is involved in the calculation, and a specific calculation method is given, and the basic properties of the new quantitative tolerance relationship are proved. Finally, the quantitative tolerance relationship is verified by an example.