查询词典 stochastic approximation

Chapter 3 studied Monte Carlo methods to four special classes of the stochastic non-smooth convex programming.

第3章研究了四种随机非光滑凸规划问题的Monte Carlo近似法。

In this paper, we consider the optimal control problem of time-delayed forward-backward stochastic system when control set is convex.

本文研究了在控制集为凸集的情况下带时滞的正倒向随机控制系统的最优控制问题。

Via the stochastic averaging method, the four-dimensional system is reduced to a two-dimensional one. Through the logarithmic polar transformation , and then Girsanov theorem and Feynmann-Kac formula, the backword differential operator is then obtained. By expanding the eigenfunctions as a Fourier cosine series, the approximate analytic expansion of the moment Lyapunov exponent is then obtained.

首先在经典二元机翼颤振方程加入随机激励，通过随机平均法，Girsanov定理和Feynmann-Kac公式得到关于矩Lyapunov指数的特征值问题，其次采用Fourier余弦级数对特征函数进行正交展开得到系统矩Lyapunov指数的近似解析式。

Based on product moment of normal random variable cariable calculating covariance function of square of normal stochastic process has been given.

在正态随机变量乘积矩基础上，给出了正态随机过程平方后的协方差函数的计算。

Some fundamental properties of fuzzy probability characteristic, such as the fuzzy mean value function, fuzzy covariance function and fuzzy variance function of fuzzy stochastic processes are proved.

3研究了实模糊随机变量的数学期望、方差等模糊概率特征的基本性质以及计算方法，并且讨论了实模糊随机变量的独立性与分析运算的若干基本性质

The numerical analysis method is used to study the ground movement laws caused by the ovalization variation in the cross section in the action of water and soil pressure of tunnel lining.Based on the stochastic medium theory,this paper suggests the method for calculating this ground movement caused by tunnel ovalization deformation.

采用数值分析方法研究了隧道衬砌在土水压力的作用下，断面所产生的椭圆化变形引起的地层位移规律，并基于随机介质理论，给出了计算隧道椭圆化变形引起地层位移的方法。

The simulation showed that the intrinsic stochastic open process of CRUs can fully explain the above phenomenon.

为了进一步研究这种随机性产生的内在机制，构建了一个数值模型对心肌细胞中的钙波进行模拟。

The current sensitivity probability density function of energetic materials was deduced based on Frank-Kamenetskii parameter and resistance supposing as stochastic variable of normal distribution, by the application of the probability density formula of function in two random variables.

将Frank-Kamenetskii参数和电阻假设为正态分布的随机变量，应用二维随机变量函数的概率密度公式，推导出了含能材料电流点火感度的概率密度函数。

Genetic algorithms are a class of stochastic search methods based on Darwinian models of natural selection and evolution.

遗传算法是一种借鉴生物界自然选择和自然遗传机制的随机搜索算法。

This paper adopts stochastic finite element theory,introduces definability analysis,deals with undefined parameters obviously,and switches the idea of automobile body analysis from definability to authenticity.

利用随机有限元理论，引入确定性分析方法，显示处理不定参数，实现汽车车身的分析思想从确定性分析向真实性分析的转

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。