It discuss the temporal relation algebra operations fit to temporal database.
本文重点介绍了适合于时态数据库的时态关系代数。
Aim To put forward association rule mining algorithm based on relation algebra theory.
目的提出基于关系代数理论的关联规则挖掘算法。
The math model is used to image the essential relation of every variable in the process, maybe the model is algebra equation, or differential equation, or geometry curve.
数学模型用来反映过程本身各有关变量之间本质关系，它可能是代数方程、微分方程或几何曲线。
Finally, bitemporal relation is defined as the set of the temporal mapping tuple, and the bitemporal relational algebra operations are described formally.
最后，用时态映射定义的元组对双时态关系进行定义，并由此给出双时态关系代数运算的形式化描述。
The conclusion is that the algebra operations of temporal relation and traditional relation are similituded.
结果证明时态关系代数运算与传统关系代数运算是相容的。
In this paper, we apply the concept of the generalized restricted Lie algebra to study the relation of the integral and central extensions of a Lie algebra with a triangular decomposition.
本文将应用广义限制李代数的概念来研究具有三角分解李代数的积分元和中心扩张的关系。
Linear relation of vector group is an important concept in linear algebra and is also an important theoretical foundation of solving problems.
向量组的线性相关性是线性代数中的重要概念，也是解决问题的重要的理论根据。
The relation between rough set algebra and lattice implication algebra was studied, and the method of constructing lattice implication algebra from rough set algebra was presented.
讨论粗糙集代数与格蕴涵代数的关系以及由粗糙集代数构造格蕴涵代数的方法。
In order to solve the problem of complete system of orthogonal Latin squares, relation between Latin square and permutation groups is discussed by using method of algebra.
为了解决正交拉丁方完备组问题，利用代数方法讨论了拉丁方与正则群的关系。
In a BCI-algebra, a congruence relation is defined by using its intrinsic ideal, thus the intrinsic quotient algebra of the BCI -algebra is obtained.
利用BCI -代数的固有理想这一概念，在BCI -代数中定义了一个同余关系，从而得到这个BCI -代数的固有商代数。
Relation appeas in higher algebra. They seem not relevant to each other, in fact, the relation is the development of mapping, and they are all expressed by set.
在众多关系中，二元关系是最基本的，下面从二元关系的角度出发，来探讨一下关系与映射。
Relation appeas in higher algebra. They seem not relevant to each other, in fact, the relation is the development of mapping, and they are all expressed by set.
在众多关系中，二元关系是最基本的，下面从二元关系的角度出发，来探讨一下关系与映射。
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