查询词典 multivariate

However,for the large dimensional data.the sample covariance matrix is not a good estimator of the population counterpart.Many methods of parametric estimations and tests for multivariate statistical problems can not be simply used to deal with large dimensional data.

但是由于经典的大样本理论都是假定维数很小是固定的，故而经典极限理论并不适宜解决大维随机数据问题，很多多元问题的模型参数估计、模型检验的统计量已有的结果对大维海量数据并不能平凡推广。

Owing to the possible measurement error of variance and covariance for Markowitz's M-V model, in the present study, it employs two static models and two dynamic models, which are the sample covariance model, implicit factor mode!, implicit factor GARCH model and full-factor multivariate GARCH model.

基於Markowitz(1952)提出的M-V投资组合模型可能造成变异数及共变异数衡量的偏误，因此，本文以样本共变异数模型、内含因素模型等两我种静态模型，并参酌Alexander and Leigh(1997)的内含因子GARCH模型与Vrontos et al。

In the case of 〓unknown,this dissertation derived the exact distribution of related statistics,and thenproposed the multivariate covariance control charts:the A chart and the 〓 chart based onthe sample generalized variance and the maximum and the minimum eigenvalues.

当分布参数〓未知时，本文通过推导有关统计量的精确分布，建立了基于样本广义方差和最大、最小特征根的多元协方差控制图—A图和〓图，为实际应用奠定了基础。

XO of Xuan Ni poem: Buying order price 840 yuan, every bottles of rake-off 252 yuan; 3 jins install XO of Xuan Ni poem: Buying order price 1680 yuan, every bottles of rake-off 504 yuan......1 month 6 days since, explode on the net the rake-off detailed account that gives a piece of scandalize, allegedly cadre of some secondary division level uses Jiangxi those who purchase, a month was scooped up 30 thousand multivariate rake-off, it is be blinded by gain really to the utmost.

轩尼诗XO：采购单价840元，每瓶回扣252元；3斤装轩尼诗XO：采购单价1680元，每瓶回扣504元。。。。。。1月6日以来，网上爆出一张令人愤慨的回扣清单，据说江西某副科级干部利用采购之便，一个月就捞了3万多元回扣，实在是利欲熏心到极点。

The education de-gree was correlated with the awareness of knowledge about hypertension by the multivariate logistic re-gression analysis.44.3%hypertension cases could obey doctors'advice and took proper medicine on schedule,and the main causes of disobeying were self-neglect and forgetting or having no time.

本研究发现遵医嘱规律服药者仅占既往诊断高血压病患者的44.3%，不遵医嘱的主要原因是自认为无大碍与遗忘或没有时间。

A novel approach for abnormal work condition recognition of internal combustion engine valve drain by monitoring vibration is proposed based on multivariate state estimation techniques and sequential probability ratio test.

提出了一种基于多元状态估计(Multivariate State Estimation Techniques， MSET)和序贯概率比检验(Sequential Probability Ratio Test， SPRT)的内燃机气阀机构振动监测方法。

In order to solve this problem, a new algorithm for multivariate calibration is developed by combining optimized sampling and partial least squares, where the original training samples are non-negatively weighted and the complexity and predictivity of the model are considered simutaneously.

传统的多元校正模型大多根据经验方法选择代表性样品，在某些不利的情况下可能会影响校正模型对新样品的预测性能。

Calibration transfer in multivariate calibration is one of the most important and key issues in near-infrared spectral analysis technology.

模型传递问题是近红外光谱分析技术中一个关键的共性基础技术问题。

A novel dynamic time-frequency process monitoring method based on multivariate spectral decomposition is proposed.

提出一种基于多变量频域分解的新型动态时频监控方法。

This paper addresses the relationship between multispectral satellite information and probed relative humidity in each of standard isobaric surfaces using correlation analysis, least-square fitting and multivariate linear regression separately.

多光谱卫星图像上不同云类的云层高低分布蕴涵着三维湿度场的分布信息，文中用相关分析、最小二乘拟合分析和多元线性回归分析分别讨论了多光谱卫星信息与各标准层相对湿度的关系。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。