1) weak functions
弱函数
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) generalized weak functions
广义弱函数
4) D-regular weak Lipschitz function
D正则弱函数
补充资料：弱函数
弱函数
minorant
弱函数[m加叮叨t;M一“op幼往j 见强函数和弱函数(浏习皿ni and minolant).
说明：补充资料仅用于学习参考，请勿用于其它任何用途。