1) closure
[英]['kləʊʒə(r)] [美]['kloʒɚ]
闭包
1.
Parallel algorithm of generating closure of RDFS source;
RDFS数据源的并行闭包生成算法(英文)
2.
Kernel and closure of Vague relation;
Vague关系的核与闭包
3.
Application about Closure of Attribute in Calculating Candidate keys for Relational Schema;
属性集闭包在求解关系模式候选关键字中的应用
2) hermetic storage
密闭包装
3) closure operation
闭包运算
1.
The definitions of interior and closure of a set about a subbase for a topological space are introduced in this paper,and then some properties of them are discussed;the agreeable condition of the topology determined by the closure operation,interior operation and subsetfamily is gained.
首先引入了拓扑空间的子集关于某个子基的内部和闭包的定义,然后讨论了它们的一些性质;在此基础上得出了闭包运算、内部运算与子集族确定的拓扑相同的条件。
4) transitive closure
传递闭包
1.
The application of Warshall s algorithm in judging transitivity binary relation and solving the transitive closure;
Warshall算法在判别传递性与求传递闭包中的应用
2.
A method of solving transitive closure based on backtracking spread information and coding technique;
基于带回溯传播信息和编码技术的求解传递闭包方法
5) path closure
路径闭包
1.
Based on the definition of XFD, the inference rules for XML and logical implication is studied, and a set of inference rules, a path closure algorithm and membership algorithm are presented, an.
在此基础上,研究了XFD的逻辑蕴含问题,提出了求解路径闭包算法和成员籍算法。
2.
Based on the definition of XFD, the inference rules for XML and logical implication is studied and a set of inference rules is presented and in- ference rules s correctnessand completeness is proved, as well as a path closurealgorithm and membership algorithm are presented.
在这种XFD定义的基础上研究了XML的推理规则和逻辑蕴涵问题,提出了一组推理规则集并证明了推理规则的正确性和完备性,给出了求解路径闭包算法和成员籍算法。
6) closure operator
闭包算子
1.
On the relations between poset matroids and closure operators;
关于偏序集拟阵与闭包算子的关系
2.
The rank function is introduced for poset greedoids on the base of poset matroids,and the closure operators are defined and a series of properties of closure operaters of poset greedoids are discussed.
在偏序集拟阵的基础上,引入了偏序集广义拟阵的函数,定义了偏序集广义拟阵的闭包算子,讨论了偏序集广义拟阵的一系列性质。
补充资料：闭包关系
闭包关系
closure relation
闭包关系「d渭u比比lati阅;、，aM峨a““，oT“o山en，，el.闭包运算(elosure operation)，偏序集M中的 M到它自身的单值映射，使每个元素a任M，映为元素互〔M，称为a的闭包(dosure)，使得下列条件戍立:l)a‘a;2)若a(b，则丁毛b;以及3)贡=丁.如果元素a就是它自己的闭包，则称a是闭的(d“ed).在集M中，只要定出它所有的闭元，就唯一地确定了M的一个闭包运算.特别在M是由任意集合X的所有子集构成的集合，按集合的包含关系为序时，我们可在X上来谈论闭包运算.在任意集合X上，一个闭包运算可以这样来规定:任取一个由子集所成的族，其中包含X自身，而且关于任意多的交是封闭的，以这个族作为X的闭子集族.两个带有闭包运算的偏序集，如果存在一个偏序集的同构，使得闭集的象和闭集的原象都是闭的，则称它们是同构的.对于由X的所有子集所成的集合来说，一类在数学上有相当重要性的闭包运算要求满足下述附加条件:空集是闭集，X的二个子集的并的闭包等于它们的闭包的并.满足此条件的闭包运算称作集合x上的拓扑(topology on the set)·【补注】闭包运算又称作印粤纂于(dosure Operator)或攀篡于(joino沐ra‘or)(见[l])·集合X的一族子集，如果在任意交下是封闭的，则称之为闭包系(d洗uresystem).例如仿射空间A中所有子空间所成的族，如上所述，它给出A的子集上的一个闭包运算. 与有限并可交换的闭包运算，为表示崇敬【AI]的作者，常称作Kuratowski闭包运算(Kuratowskid谓ureo讲ration).具有闭包运算的压双e代数(Boolean al罗-bra)有时称作甲粤华攀(d，ure al罗bra)(见[A2])·
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条