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By employing function one-direction S-rough sets and rough law generation method based on function S-rough sets, ■-decomposition law and ■-decomposition rough law are proposed, and the measurement of rough law variation in the process of rough law ■-decomposition is researched. The concepts of law energy and attribute ■-interference degree are presented, which make the variation of rough law become measurable. ■-decomposition law energy characteristic theorem, ■-decomposition law energy inequality theorem,■-decomposition rough law energy characteristic theorem, and ■-decomposition law energy mean value theorem are presented.
By employing function one-direction S-rough sets and rough law generation method based on function S-rough sets, ■ -decomposition law and ■ -decomposition rough law are proposed, and the measurement of rough law variation in the process of rough law ■ -decomposition is researched. The concepts of law energy and attribute ■ -interference degree are presented, which make the variation of rough law become measurable. ■ -decomposition law energy energy theorem, ■ -decomposition law energy inequality theorem, ■ -decomposition rough law energy characteristic theorem, and -decomposition law energy mean value theorem are presented.