Given attribute set and minimum cover set of functional dependencies over one relational schema, a new method for designing normalized XML schemas based on schema graph is proposed.
在给定关系模式的属性集及其函数依赖最小覆盖集的基础上,提出一种基于模式图的规范化XML模式设计方法。
Between this cost and sale, in other words, between the advertising cost and minimum amount of sale increased in order to make up this cost, there exists a functional relation.
广告成本与产品销售量之间,即弥补广告成本所需增加的最低销售量的增量之间存在函数关系。
New optimality conditions of the integral global minimization are applied to characterize global minimum in functional space as a sequence of approximating solutions in finite-dimensional Spaces.
本文用有限维逼近无限维的方法来讨论函数空间中的总体最优化问题。
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