查询词典 copulas

We also introduce some bivariate copulas, such as Archimedean copulas, Farlie-Gumbel-Morgenstern copulas and Normal copulas .

接著介绍一些常见的机率结合函数，如AC族、FGM族及常态机率结合函数族。

If there exist a family of copulas, we could construct any bivariate or multivariate distribution functions of given margins by Sklars theorem and these distributions are always very useful for simulation.

如果我们有一族copula，那么根据Sklar定理，可以构造出任何指定边缘分布的二元或多元联合分布函数，而这些分布函数在建模与模拟方面是非常有用的。

It is obvious to see that bivariate copulas is a very useful tool for constructing bivariate distributions, especially when the marginal distributions are given of the same type of distribution such as bivariate exponential distribution and bivariate gamma distribution.

由回顾知道，经由二元机率合函数以建立二元分布是一项很有用的工具，尤其是边际分布为特定分布时，如边际分布为同类型时之二元指数、二元迦玛等等。

Conventionally, a negative dependence structure is not allowed in bivariate poisson models, and it restricts the univariate marginal distributions has to be the same family as the bivariate joint distribution, On the contrary, copulas allow negative dependence structure and marginal distributions and bivariate distributions of different families .

相较之下Copula允许有负相关，且Copula是一个能将双变量的联合分配函数与各自的边际分配连接在一起的函数。

Definition,properties of copula and several special copulas are introduced.

本文介绍了Copula函数的定义、属性和几种特殊的Copula函数。

We can get n-copulas if a family of g functions could be found.

只要我们找到一族g函数，就可以求出对应的多元copula。

We calculate the nonexchangeabilitymeasures of Copula CU and CL, the bounds of Copulas when we possess the valuesof some points, construct four Copulas with maximum nonexchangeability, reveal thestructure feature and property of the four Copulas, and give the calculating formula ofnonexchangeability for the LP distance.

给出了在一般的LP距离下不可交换性度量的计算公式。

Sandalwood is an evergreen parasitical arbor, and there are thousands of copulas in their roots; these copulas absorb nutrition from the plant they parasitize on, and it strives for nutrition, inorganic salt and other elements with them.

原来，檀香树是一种半寄生性常绿乔木，它与众不同的是须根上长着千千万万个&吸盘&，这些&吸盘&紧紧地吸附在寄主植物上，从它们那里掠夺水分、无机盐和其他营养物质。

In chapter two, we provide some new copulas which may be considered as some extension of RULF and this new copulas increases |ρs| and also increases its applicability for real data.

在第二章，本文提出一个新方法以加大二元RULF机率结合函数族，并由调整加大后函数族的参数来提高|ρs|，并加大模型在实际资料的适用范围。

Used methods suchas VaR and Copulas function to measure the risk of the financial conglomerate first ofall, and set up Copula-VaR model for risk measurement.

首先运用VaR和Copulas函数等方法对金融混业经营机构的风险进行度量，建立了计算金融混业经营集团的风险度量模型Copula-VaR。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。