查询词典 standardized normal distribution

Second, when the error distribution of the model is the Laplace distribution, the L1 estimation of 1-D location estimation is essentially the sample median, hence the study of the Laplace distribution is also important.

第二，由于当模型的误差分布是拉普拉斯分布时，一元位置的最小一乘估计是样本中值，因此对于拉普拉斯分布的研究也是至关重要的。

To address the problem that the distribution feature of time series could not always be easily described due to its diversity, the likelihood function based on the asymmetric Laplace distribution was employed irrespective of the original distribution of the data.

针对时间序列分布特征多样性的问题，不考虑序列本身的分布特征而选择非对称Laplace分布的似然函数对模型进行贝叶斯分位回归分析。

And the evaluation effects of China's Stock Market's volatility by different ARCH models from different point of view are compared. In addition, by using two mixed distribution models, the leptokurtosis and fat-tail of stock return are examined. Based on the above analysis, an improved Laplace distribution model is proposed. Furthermore, the root generating non-Gaussian return distribution of the stock market ? is expounded from the perspective of both economy and capital market.

首先分别从分布和波动性模型出发，研究中国股票市场收益分布特征与波动性特征：从ARCH族模型出发，考察了中国股票市场波动性的异方差、集群性、杠杆效应以及长记忆性特征；从两个混合分布模型出发，结合随机模拟考察了收益分布的尖峰、厚尾和偏态特征，并提出了改进型LapJace分布。

After the review of the previous studies on the models of sky luminance distribution, it is the first that this thesis make the systematic study of the pseud-overcast sky luminance distribution by two characteristics of the maximum sky luminanace element and the luminance lapse rate with that the all of sky luminance distribution is determined. Through discussed, these methods and results on pseud-overcast sky study are suggested to be valid of the standardization of intermediate skies in this thesis.

在较为系统地分析了前人有关天空亮度分布模型的基础上，首次利用天空最大亮度元和亮度变化率二个确定天空亮度分布的特征量，对构成中间天空（除CIE全阴天空和CIE全晴天空以外的一切真实天空）之必要部分的似阴天空进行了系统的研究，从而为中间天空的标准化提供了有意义的方法和结果。

Crowding degrees and spatial distribution patterns of Lepus capensis differed in different sample plots, the spatial distribution pattern appeared a state of even distribution that the basic composition was individual.

草兔在不同样方中具有不同的聚集度和空间格局，但均是以个体为基本成分的均匀分布。

In Chapter 7,we study thelimiting distribution of the residual lifetime of discrete-time Markovian repairablesystem,and we prove that the limiting distribution of the residual lifetime ofdiscrete-time Markovian repairable system is geometric distribution.

在第七章中，我们研究了离散时间情况下的马氏可修系统的这一性质，得到了与[50]相应的结论，证明了：离散时间马氏可修系统剩余寿命的极限分布为几何分布。

Results show that the two systems are very similar in mathematical structure and diversity characteristics, and both are reasonable information systems, which fit well to the same distribution models, such as power law distribution and lognormal distribution.

分析结果表明，生物分类和土壤系统分类具有很高的相似性，有着相似的数学结构和多样性特征。

In this paper, EM algorithm is used to estimate the parameters of exponential distribution, Weibull distribution and lognormal distribution based on randomly right censored data.

本文将EM算法用于随机右删失数据下指数分布、Weibull分布和对数正态分布的参数估计中。

Based on the old algorithm, introduce new Linear Feedback Shift Register, new Central Limit Theorem, Maclaurin Equation to generate uniform distribution, gaussian distribution, exponential distribution's random number respectively and analyze them, compares the difference between new algorithm and old algorithm.

在原有算法的基础上，提出了改进型线性反馈移位寄存法、改进型中心极限定理法和麦克劳林展开法，并对其作测试仿真，比较传统算法与改进型算法之间的优缺点。

Based on the uniform magnetization model of the surface magnetic field distribution on multi pole drum for magnetic encoder , the surface magnetic field distribution on multi pole drum for magnetic encoder was studied with numerical analysis method, and the general expression of surface magnetic field distribution on multi pole drum was found.

基于磁编码器多极磁鼓表露场分布的均匀磁化理论模型，采用数值分析方法计算磁编码器多极磁鼓的表露场分布，得到了多极磁鼓的表露场分布的数值表达式。

Go to your desktop and right click in a blank space.

请到您的桌面，然后右击一个空白。

Tara appears in Buddhism, Jainism, and particularly, Tibetan Lamaism, as a complex array of manifestations: goddess of ascetism and mysticism, mother creator, protectress of all humans as they cross the sea of life.

度母出现在佛教，耆那教里面，尤其是西藏的喇嘛教，作为一系列的陈列阵容；神秘的女神，创世之母，人类横过生命之海洋的女性保护者。