查询词典 singular bivariate normal distribution

In this paper, considering inter- scale dependency, we introduced a bivariate probability distribution model.

该文考虑到小波系数层间相关性，引入双变量概率分布模型。

And when the numbers of rational and irrational investors are almost equal, the effect of volatility on expected returns is weak.4. having extended a Bivariate Mixture Distribution model.

研究结果显示，在中国股市中，1997年之前，相同强度的冲击，收益为正的冲击与交易量放量的冲击对波动的冲击分别大于收益为负的冲击和交易量缩量的冲击；而1997年后情况则相反。

Therefore a new spatial adaptive wavelet thresholding method is presented, which is based on a non-Gaussian bivariate distribution and context modeling for image denoising that is inspired by image coding.

为了更好地进行MR 图像分割处理，本文提出了一种新的空间自适应小波阀值去噪算法，该算法是基于非高斯二元分布的贝叶斯统计模型和上下文模型。

To evaluate the potential of water transfer of the Eastern Route of the South-to-North Water Transfer Project,several methods of calculating joint probability for bivariate P—Ⅲ distribution were applied to analyze plentiful or scanty runoff encountering,and compared with the conventional method.

为计算南水北调东线工程优势调水频率，选用国内外常用的二维P—Ⅲ分布的计算方法进行南水北调年径流丰枯遭遇分析，并与传统的基于频率的分析方法结果做了比较。

Based on observed and hindcast data, a bivariate Pearson Ⅲ distribution is adopted to calculate the joint probability of extreme wind velocity and wave height.

本论文以观测和后报资料为基础，针对我国渤海某区的特点，将二维皮尔逊Ⅲ型分布用于极值风速与波高的联合概率计算，综合比较多种统计模式所求得的设计荷载，对我国边际油田开发的环境条件设计标准提出建议。

To evaluate the potential of water transfer of the Eastern Route of the South North Water Transfer Project, several methods of calculating joint probability for bivariate P-Ⅲ distribution were applied to analyze plentiful or scanty runoff encountering, and compared with the conventional method.

为计算南水北调东线工程优势调水频率，选用国内外常用的二维P-Ⅲ分布的计算方法进行南水北调年径流丰枯遭遇分析，并与传统的基于频率的分析方法结果做了比较。

Bivariate mixture distribution model ; volatility ; trading volume ; asymmetry effect

二元混合分布模型；波动；交易量；非对称效应

The statistics of the contourlet coefficients of natural images in detail and model contourlet coefficients using non-Gaussian bivariate distribution that captures their interscale dependencies are studied.

详细分析了图像contourlet系数的统计特性，并利用非高斯双变量分布对系数层间相关性进行建模。

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。

Trading volume ; return volatility ; Dynamic Bivariate Mixture Distribution Models

交易量；收益波动；二元混合分布模型

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。