基于上下近似与边界域的粗糙集之间的相似度量

Similarity Measures between Rough Sets Based on the Lower and Upper Approximation and Boundary Domain

度量不确定性集合的相似度是粗糙集的核心内容之一.对现有的基于上下近似的粗糙集相似度量方法进行分析,提出一种基于上下近似与边界域的粗糙集间的相似度量公式,并通过例子说明,该方法具有较高的分辨力.

Measuring the similarity of the uncertain set is one of the cores of the rough set. The analysis was conducted on the current rough set similarity measuring methods based on the lower and upper approximation. Consequently, a similarity measuring formula between rough sets on the basis of the lower and upper approximation and boundary region was proposed. Examples showed that the method has a higher resolution.