set algebra

The MS algebra extends the relational algebra with extended operation semantics, the extended set of operation objects and new algebraic operators that support the statistical analysis queries. MS algebra is a theoretical framework for statistical and scientific database query languages.

二是MS代数包括很多支持统计分析查询的新代数操作，MS代数是构造对用户友好的统计与科学数据库查询语言的理论基础。

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Firstly, the Ternary Logic Difference is introduced, then a complex model of arbitrary networks is set up on the basis of new ternary algebra, and finally, a new algorithm is presented, by which one can describe the transient process of a sequential circuit completely.

在新三值代数的基础上建立了任意网络的复数模型。最后，本文提出一个新算法，用此算法能完整地描述时序电路的过渡过程。

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WIS Algebra and I Ideals Generated by a Set in WIS-Algebra

WIS代数及其由WIS代数中的子集生成的I理想

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Interpolation Set of Weak Function Algebra and Function Algebra

弱函数代数与函数代数的插补集

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Based on the attributes' importance degree theory of rough set, a new weighted naive Bayes method is proposed. Methods for determining the weights of attributes in the algebra view, informational view and both of them are developed respectively.

基于Rough Set的属性重要性理论，提出了基于Rough Set的加权朴素贝叶斯分类方法，并分别从代数观、信息观及综合代数观和信息观的角度给出了属性权值的求解方法。

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Based on the atoms and congruence relations of approximation algebra, it is proved that rough set algebra becomes pseudo-complemented MS algebra if proper complement operators are selected.

借助近似代数上的原子及同余关系，证明了在适当选取余运算之后，粗集代数就构成伪补MS代数。

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