Reduction methods of attributes based on power set evolution;
基于幂集演化的属性约简方法
Given a rough set,we can define its accompanied Vague set(fuzzy set) on it power set.
证明了:对于给定的粗糙集,可以在它的幂集上定义一个伴随的Vague集(模糊集);反过来,给定的一个Vague集(模糊集),可以定义它伴随的粗糙集。
This paper firstly presents a power set-based association rules mining algorithm which uses pow er set as an association rules mining tool.
首次提出了利用幂集作为挖掘关联规则的工具,给出了基于幂集的关联规则挖掘算法。
Through a systematic research on the multi-set,this paper proposes some correlated concepts and operations of the multi-set involvement,multi-set equality,multiple power set and multiple complementary set.
通过对多重集合进行系统研究,提出了多重集合的包含、相等、多重幂集,以及多重集合补集等相关概念和运算,建立了多重集合完善的理论体系,并给出了多重集合在古典概率中的应用。
We can get the definite method of the minimal power set if we study its regularity with the index of the same power.
二元关系的方幂有其规律性,利用同幂指数对其规律性进行探讨和研究,得出最小幂集的确定方法。
By introducing the concepts of new dual-set Fuzzy lattice and pseudo-power set lattice, we obtain two results that are natural representations of soft algebra and prove that they can′t be improved in a sense.
指出了软代数现行表示的非自然性;通过引入新的集对F格与伪幂集格,获得了两个自然的软代数表示定理,并证明了它们在某种意义上不可能再改进。
Based on in which the concept of the power lattice is given, this paper discusses relation between power lattice and power set lattice in some condition.
由幂格的定义知 ,幂格与幂集格是不同的 ,然而它们却有一定的联系 。
In this paper, Brouwer pseudo-complement in Fuzzy power set lattices is discussed, some properties of the pseudo-complement are established.
讨论Fuzzy幂集格■（X）中的Brouwer伪补的21种型式，并建立了这种伪补的若干性质。