1) little dependence
弱依赖
2) weak functional dependency
弱函数依赖
1.
Second,the definition of weak functional dependency and its satisfaction were given.
Arenas等人给定的XML中DTD和XML树的定义,提出空值、不完全树元组、数据值偏序、最小扩展树等概念,在此基础上,给出弱函数依赖及其满足性的定义;其次研究了XML弱函数依赖的逻辑蕴含问题,提出一组适合XML空值模型的函数依赖推理规则集;最后给出推理规则集的正确性和完备性证明。
2.
, concepts of null value, incomplete tree tuple are proposed, based on it, the definition of weak functional dependency and its satisfaction are given; second, the additivity problem for weak functional dependencies are researched, an algorithm that decide whether a given set of functional dependencies is weakly sati.
Arenas等人给定的 XML中DTD和XML树的定义,提出空值、不完全树元组等概念,在此基础上,给出弱函数依赖及其满足性的定义;其次研究了弱函数依赖的可加性问题,给出一个判定一棵XML树是否适合给定函数依赖集的算法,并证明了算法的正确性。
3.
In this paper, based on concepts of null value,incomplete tree tuple,the definitions of weak functional dependency,mono-dependent set are given,and the theorem of determine mono-dependent set and the terminate-able theorem of determine mono-dependent are proved.
XML弱函数依赖是在XML数据库中引入空值理论后的函数依赖。
3) Weak path dependen
弱路径依赖
4) Weak fair dependence relation
弱公平依赖关系
5) XML weak multi-valued dependencies
XML弱多值依赖
1.
Inference rules for XML weak multi-valued dependencies
XML弱多值依赖的推理规则
6) weak XML complete functional dependency holding
完全函数依赖弱保持
1.
On the basis of these concepts,strong XML functional dependency holding and weak XML complete functional dependency holding are defined,and it presents algorithms of weather satisfying weak XML complete functional dependency holding.
并在此基础上定义了函数依赖的强保持条件、完全函数依赖弱保持。
补充资料：弱弱联合
弱弱联合是指两个总体实力都不强但都拥有自己独特的某方面优势的企业之间进行联合，以形成较强的实力。弱弱联合，弱企业之间优势互补，可以形成整体实力变强的效应。
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