formal approximation
英 [ˈfɔːml əˌprɒksɪˈmeɪʃn]
美 [ˈfɔːrml əˌprɑːksɪˈmeɪʃn]
网络 形式逼近; 形式近似
双语例句
- Under certain assumptions, the existence and uniqueness of the global solution to the Boussinesq equation are established in a classical space. The long time asymptotic behavior of the formal approximation solution is discussed in detail.
在一定条件下得到了这类Boussinesq方程在古典空间中整体解的存在唯一性和形式解的长时间渐近性。 - Under suitable conditions, a formal approximation of the boundary value problem is obtained by using the construction of boundary layer function, and the uniform validity of this formal approximation is justified by the maximum principle of differential equations.
在适当的条件下，通过构造边界层函数，得到了问题解的形式近似式，并利用微分方程的最大值原理证明了该形式近似式的一致有效性。 - A formal definition of the CDS ( F) is firstly given, whose NP property is then proved in variant situations. We also present an approximation algorithm with approximation ratio Ln Δ+ 3(Δ is maximal degree of the vertex in our concerned graph).
文中首先给出问题的形式定义，证明了它在各种情形下的NP完全性，并给出多项式时间的近似算法，它的近似度为Ln△+3（△为图中顶点的最大度数）。 - Compare to neural network analysis and other analyze method, the formal analyze method has a good application effect for its nonlinear approximation ability, self-learning and self-adaption.
通过对比神经网络分析法和其他分析方法得知，神经网络的非线性逼近能力以及自学习、自适应能力对于股市的分析具有良好的应用作用。