在前面已讨论过的静态粗信息矩阵数量特征(粒度、精度)基础上,利用动态粗糙集理论,进一步给出动态粗信息粒度矩阵的三种形式,系统地讨论了静态、动态系统的粗信息粒度矩阵的特征及其关系定理,这一研究不仅完善了粗信息矩阵这一新的研究方向内容,而且为动态系统的知识挖掘提供了一个可靠的依据。 Based on the quantitative characteristics (granularity and precision) of the static rough information matrix discussed earlier, the dynamic rough set theory is used to further give the three forms of the dynamic coarse information granularity matrix. The static and dynamic systematic rough information The characteristics of granularity matrix and its relation theorem, this research not only perfects the new research direction of rough information matrix, but also provides a reliable basis for knowledge mining of dynamic system.