查询词典 sampling distribution

This regression problem is dicult for several reasons: large number of examples, large number variables (most of which are discrete and multi-valued), non-stationarity of the distribution, and a conditional distribution of the dependent variable which is very dierent from those usually encountered in typical applications of machine learning and function approximation.

这个回归问题是，邸邪教组织有多少个原因：大量的例子，大批变量（其中大部分是离散和多值），非平稳性的分布，以及有条件的分布因变量，这是非常邸erent从这些一般遇到的典型应用机器学习和函数逼近。

This article considers solving that conditional distribution of most financial asset return tends to vary over time and the distribution of underlying asset does not conform with ordinary assumption simultaneously.

中文摘要本篇研究同时考虑解决资产报酬变异随时间变化的特性与当标的资料分配不符合原始假设的问题。

However, the actual conditions in the market incompletely support this hypothesis. So, we turn to research the statistic distribution traits of the yield under different market conditions. To develop the investigation on securities' investment combination according to the distribution characters of conditional yield will make its actual application closer to the market facts.

然而，实际的市场情况并不完全支持这种假设，因此，我们转而研究不同市场条件下的收益率统计分布特征，根据条件收益率的分布特征进行投资组合理论研究，将使其实际应用更加贴近市场实际。

Weibull distribution is widely used as a life distribution, and estimating lower confidence limit of reliability is important. But so far this problem has not been well solved if when the sample size is small.

威布尔分布是使用非常广泛的寿命分布，关于威布尔分布的可靠度的下限估计是一个有重要意义的问题，文献中有很多讨论，但当样本量较小时，关于二参数威布尔分布的可靠度的下限估计至今没有非常有效的方法。

This paper discusses whether the definitions of heavy-tailed distribution s produced by slow-varying function and the definitions of heavy-tailed distribution s produced by exponential echelon matrix are congruous.

讨论了由慢变化函数形式给出的重尾分布定义，与由指数阶矩形式给出的重尾分布定义是否一致。

In this paper, photoelastic coating method and strain-gauging method were used conjointly to study the stress distribution of the column of cross wedge rolling machine. The result of study deepened the understanding of this complicated problem and there is certain reference value on improving the stress distribution of the column.

本文利用光弹性贴片法，辅以电阻应变片法，对楔横轧机机架模型的应力分布规律进行了研究，研究结果深化了对这一复杂问题的认识，得到了一些有价值的结论，对于采用合理设计来改进机架的应力分布也有一定的参考价值。

Institute of Statistics and Actuary, Shandong Economic UniversityAbstract We consider the risk process perturbed by diffusion under interest force in this article. The integral expressions, continuities, twice continuous differentiability and integro-differential equations about $F_{\delta}$, the distribution of the surplus immediately before ruin, and $H_{\delta}$, the joint distribution of the surplus immediately before ruin and the deficit at ruin are obtained.

我们考虑既带有随机干扰又带有确定投资回报的风险过程，得到了破产前瞬间盈余的分布$F_{\delta}$及破产前瞬间盈余和破产时赤字的联合分布$H_{\delta}$所满足的积分表达，连续性及二次连续可微性和积分--微分方程。

In this article the usual method of determining the distribution density of function of one-dimensional continuous random variable——distribution function method.

本文给出了求一维连续型随机变量函数分布密度的一般方法：分布函数法，并用分布函数法对现有文献中的计算公式进行了理论探讨，对现有的定理进行修正拓展，扩大了应用范围。

According to the Scalar theorem, if the marginal distribution is continuous, there exists only one joint distribution.

根据Scalar 定理：当边际分布是连续的则它们存在唯一的联合分布函数（Copula 连接函数）。

It make a formally unification between discrete distribution and continuous distribution at the definition of failure rate function.

四。借助广义δ函数，首次提出了离散型分布失效率函数的一种新的定义，这种定义使离散型分布与连续型分布的失效率函数定义在形式上得到统一，这种形式上的统一使得离散型寿命分布中各特征函数之间的关系与连续型寿命分布中各特征函数之间的关系完全相同。

The studies on the developing of new media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding technology.

光磁混合记录方法，是一种可以突破超顺磁极限的限制，并进一步提高硬盘记录密度和读写速率的一种新型超高密度信息存储方式。

In io, mTOR inhibition promotes T cell anergy under conditions that would normally induce priming.

体内研究中，在正常可激发免疫反应的条件下，抑制mTOR可促使T细胞无能。