随机函数

S for a random signal, self-correlated function can always be the integrate token of its statistic average value.

bstract 对于一个随机信号，自相关函数往往最能完整地表征它的统计平均值。

In this paper, an elite-preservation strategy and a random search strategy evolutionary algorithm are introduced. Both of the algorithms enable us to find the optimal solution within a short period of time.

该文讨论了进化算法中的一种基于精英保存策略的改进的遗传算法和一种随机搜索进化策略在函数优化问题中的应用。

This is the MATLAB software have a function of Gaussian white noise, through the parameters you need to be white noise, at the same time can be used to study the methods of random signal generator.

详细说明：这是MATLAB软件中的产生高斯白噪声的函数，通过参数设置得到你所需要的白噪声，同时可以用于研究随机信号产生的方法。

However, Many aspects of the problem is unsolved, especially, There is a blank when the random variable Y is a multi-dimension random vector with unspecified distribution and the missing data mechanism can not be determined via a scalar parameter.

第三章问题如下：假定可以知道缺失的数据是否属于本章条件指定的某些区间中，在此前提下，对一维随机变量Y的分布函数F作估计。

By computing the spatial correlation function, the evolution plots of velocity, the relaxation time and the order parameter, the effect of top-priority of randomization on traffic flow is studied.

通过位置相关函数、速度时空演化图、驰豫时间和序参量的计算，研究优先随机慢化对交通流的影响。

In this method, the decision-making variables of GA are the unknown quantities of the non-linear equations, the target function for optimization is the minimum of the root-mean-square error between the computational value on the left and the real value on the right in equations, and the initial value is generated randomly in the feasible fields of the decision-making variables.

该算法以非线性方程组的待求量为决策变量，方程组两端向量的均方差最小值为目标函数，初值在决策变量可行域内随机产生。

Besides research on the application of RRM, people have been studying on the optimization of RRM and especially focusing on the choice of submodel functions.

而且随机回归模型的优化也是人们一直在探索的问题，子模型函数的选择便是其中的热点之一。

For these important and practical problems,sample covariance matrix is an important statistic because many important statistics are functionals of it.When we make statistical inferences,such as estimations and/or hypothesis tests,the sample covariance matrices must be investigated.

以上诸多方面在做估计和假设检验过程中，无不用到大维随机矩阵的处理，尤其是大维样本协方差矩阵的相关性质，因为多元分析中许多重要的统计量都可以表示成样本协方差矩阵的函数。

Although the asymptotic normality of pseudo-likelihood estimates has been proved (Gidas, 1993), the difference between the proposed asymptotic variance and the sample variance is still huge in binary Markov random fields.

虽然最大伪概似函数估计量的近似常态分布已被证明(Gidas， 1993)，但其近似理论上的变异数与样本变异数在二元随机域之下仍存在著相当的差异。

Simple random sampling; stratification ; ratio and regression estimates; systematic sampling, subsampling; cost functions and choice of optimal design; estimation procedures.

简单随机抽样，分层抽样、比率和回归估计，系统抽样、次级抽样，成本函数与最优设计选择；估计过程。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。