查询词典 multivariate

Then using Positive definite quadratic theory to prove a sufficient condition of Multivariate function's extreme value problem and show some examples about it.

而后利用正定二次型理论，证明了多元函数条件极值的一个充分条件，并给出了其应用的例子。

This paper mainly adopts the factor analysis and cluster analysis in the multivariate statistical analysis.

本文主要运用多元统计分析中的因子分析和聚类分析方法。

To analyse these problem, Factor analysis,regression analysis and multivariate analysis have been used.

在此过程中本研究主要采用了因子分析，回归分析和多元方差分析方法。

Factor analysis is a very popular multivariate statistical analysis method. It can summarize some unobservable factors from the test results which can summarize most of the observed data. The factor analysis suggest the DP, furfuran and CO_X can be divided into insulation aging factor, while the hydrocarbon gas and hydrogen were divided into another group which can be called insulation fault factor. The result of the factor analysis

因子分析作为一种常用的多元统计分析方法，可从众多可观测变量中，概括和推论出少数不可观测的潜变量，用最少的因子去概括和解释大量的观测事实；本文将试验过程中90℃下油中溶解气体、绝缘聚合度、糠醛等参量进行因子分析，结果表明：绝缘聚合度、糠醛、CO_x被分为一类，代表绝缘老化因子：烃类、氢气、被分为一类，代表绝缘故障因子；因子分析结果与现场经验一致，相互印证，具有重要意义。

In this thesis, we mostly research the initialization strategies and robustness of the algorithm of multivariate Gaussian mixture models.

本文主要针对多元高斯混合模型聚类算法对于初始值选择的敏感性，研究改进了文献4】提出的四种多元高斯混合模型聚类算法的初始化策略。

Relatively gasses gush measure,geometric probability,multivariate linear programming; up forth

相对瓦斯涌出量，几何概率，多元线性规划

Results The mean age,and body mass index before pregnancy and larger matemal weight gains during pregnancy were significantly different between GDM/GIGT and control group (P.01);Gravidity,past parity and cacogenesis were significantly different between GDM/GIGT and control group(P.05～0.01);There was a higher proportion of women with family history of diabetes among the GDM and GIGT compared with control group(P.01);Multivariate logistic regression showed that age,BMI before pregnancy and larger matemal weight gains during pregnancy were independent high risk factors for GDM or GIGT.

为早期发现GDM和GIGT的高危人群，及时诊断和治疗，本研究对180例孕妇进行分析，探讨GDM和GIGT发病的高危因素，以期为制定妇幼保健策略提供参考依据。1资料与方法1·1研究对象2006年7月~2007年2月在深圳市妇儿医院及本院产科门诊行产前检查的孕妇，于孕24~28周行50g口服葡萄糖筛查试验(50g GCT)，如1h静脉血糖≥7

Logistic multivariate analysis showed that steroid was a high risk factor of liver damage after chemotherapy.

应用二值多元logistic回归模型，应用激素是化疗后发生肝炎的高危因素。

The method of multivariate statistical analysis was applied to study on the characteristics of design hyetograph in Northen Taiwan.

本研究应用多变量统计分析方法探讨台湾北部地区设计暴雨雨型之特性。

Also, the theory of Gel'fand hypergeometric functions and the theory of multivariate hypergeometric series associated to Clebsch--Gordan coefficients of the unitary group U is given.

另外，Gel'fand超几何函数理论和多元几何关联克勒布什系列理论-的酉群U的戈尔丹马尔系数给出。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。