边缘分布
- 网络margins;marginal distribution
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Copula函数是一种将联合分布与它们各自边缘分布连接在一起的函数,所以也被称作连接函数。
Copula function is a method which connects the joint distribution and marginal distribution , so Copula function is often called connected function .
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TES(Transform-Expend-Sample)过程是一种自相关的随机变量序列。它具有任意的边缘分布和很宽范围的自相关函数。
TES ( Transform-Expend-Sample ) process is an autocorrelation sequence with random marginal distribution and with a broad autocorrelation function .
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文中探讨了在仅已知噪声边缘分布族和相关系数的条件下非高斯马尔可夫噪声中确知信号的Robust检测问题。
Robust detection of known signal in non-Gaussian Markov noise is consid -
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Copula函数可以将多个随机变量的边缘分布连接在一起形成联合分布。
The Copula function can put the marginal distributions together to form a joint distribution .
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叠加相干态的Wigner函数及其边缘分布
The Wigner Function and its Marginal Distributions for Superposition of the Coherent State
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Copula函数能够将随机变量的联合分布与它们各自的边缘分布连接在一起。
Copula function can link random variables with the joint distribution of their respective marginal distribution .
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第一,不受到限制边缘分布的限制,由Copula理论可以构造出灵活多样的多元分布。
First , the edge of the distribution is not limited restrictions Copula theory can be constructed by the flexible multivariate distribution .
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而Copula函数不限制边缘分布的选择,可以构造灵活的多元分布。
As we know , the Copula function does not limit the choice of the marginal distributions and can construct flexible multivariate distribution .
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对前期降雨量与土壤湿度,边缘分布由核密度刻画,相依结构利用AIC准则进行选择。
Precipitation and soil saturation to early , edge by a nuclear density distribution depict , dependency structure using AIC criterion selection .
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运用Copula理论建立金融模型,可将随机变量的边缘分布和它们之间的相关结构分开来研究,其中它们的相关结构可由一个Copula函数来描述。
Using financial model with Copula theory , random variables can be on the brink of distribution and the correlation between their respective structure , which can be described by a Copula function .
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对于混合Copula函数的边缘分布,往往假定其服从某种分布。然而在复杂的金融领域中,这样在进行数据拟合时,会造成拟合失真。
The marginal distributions of the mixed Copula function are often assumed to submit to some certain ones , however , which will cause distortion when fitting the data in complex financial areas .
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对上海股市的实证研究表明,结合具有不同边缘分布的Copula-GARCH模型和MonteCarlo模拟法来计算资产投资组合的VaR是可行、有效的。
The empirical results getting from Shanghai stock markets indicate that estimation method of portfolio Value-at-Risk , which is constructed by combining Copula-GARCH model having different marginal distributions with Monte Carlo simulation techniques , is feasible and effective .
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Copula方法作为研究相依结构的有力工具,对于多元分布函数,Copula方法将联合分布与边缘分布分开考虑,可以灵活选择边缘分布,并且不同的Copula函数代表着不同的相依结构。
Copula approach is a powerful tool to study dependence structure of multiple random variables . Using this approach , we can consider marginal distribution from the joint distribution separately and can choose marginal distribution flexibly .
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单变量边缘分布算法(UMDA)是一种新的进化算法,是求解复杂问题的一种有效算法。
Univariate marginal distribution algorithm ( UMDA ) is a new evolutionary algorithm and is an efficient algorithm for complicate problem .
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将Copula方法与GARCH-GPD模型结合起来是度量金融资产收益率的边缘分布和相关性的较好方法,可以构造出很多具有不同特性的联合分布函数,在金融定量分析中具有广泛的应用前景。
Linking Copula with GARCH-GPD is the appropriate way to calculate the margin distributing and relativity of finance asset yield . Because it can design different combine distributing function , it will be diffusely applied in finance quantitative analysis .
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首先根据贝叶斯定理得到ARFIMA模型参数的后验边缘分布,并选择后验边缘分布的众数作为参数的估计值。
The marginal posterior distribution of the parameter in the ARFIMA models is presented by Bayes theorem and the mode of the marginal posterior distribution is choosed as the estimator .
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本文对矩阵球对称分布的三个重要子类(Kotz型,皮尔逊Ⅱ型和皮尔逊Ⅶ型)进行了研究,给出它们的分布密度、矩、边缘分布,条件分朽、特征函数等。
In this paper , we studied three important subclasses of spherical matrix dis - tribution ( Kotz typc , Pearson ⅱ type and Pearson ⅶ type ) . We obtained their density distributions , moments , marginal distributions , conditional distribution and characteristic functions .
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基于颜色与边缘分布的足球视频镜头分类方法
Soccer Video Shot Classification Method Based on Color and Edge Distribution
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二变量边缘分布算法及其性能研究
Research on the Algorithm of the Bivariate Marginal Distribution and Its Performance
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顾及模板边缘分布结构的图像匹配
Image matching based on edge distribution structure of template
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具有平稳增量的自相似过程的边缘分布
On Marginal Distribution of Self-Similar Processes with Stationary Increments
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将它与边缘分布函数结合构成联合分布函数,最终得到投资组合的分布函数。
Put it together with Laplace distribution to get a multivariate distribution function .
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收益率边缘分布模型的构建可以采用更加精确的数理模型方法。
Yields marginal distribution model can be used to build more accurate mathematical model approach .
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本文利用边缘分布的方法将二维星像转换到一维,比较了高斯拟合法、修正矩法、中值法和寻导法四种一维定心算法。
The marginal distribution method is used to transform the two-dimentional steller image to one-dimentional .
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本文首先证明了边缘分布不能决定联合分布这个基本事实。
In this paper we have first proved that marginal distribution can not determine Union distribution .
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支持这个锥状说法的证据,包括了可能是沿着圆锥边缘分布的反射状结构。
Supporting evidence for the cone hypothesis includes radial spokes in the image that might run along the cone walls .
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针对足球视频镜头的特点,提出了一种基于颜色与边缘分布的视频镜头分类方法。
Classified by the characters of shots for soccer video , a color and edge distribution based shot classification method is presented .
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反过来,联合分布是由边缘分布以及分量的相依结构两个组成部分共同决定。
But when analyzing high dimensional joint distribution , it is necessary to separate margins and dependent structure for the purpose of simplicity .
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为了用尽可能少的维数表示时频谱而不损失分类精度,几何矩和边缘分布可以作为时频分布的特征。
To describe the signal with as few variables as possible , the geometric moments and margins were used as the features of the time-frequency distribution .
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两者在空间上相伴生,沿着台地边缘分布,形成台地边缘礁滩相带,该相带控制了达县&宣汉地区储层的岩性、储集性及其空间分布。
This facies zone controls the petrological features , the reservoir qualities and the spatial distribution of the reservoirs of natural gas in the Daxian-Xuanhan Area .