查询词典 multivariate

This paper concerns the statistical model of the dependence structure of multivariate financial data using the concept of copulas.

摘要本文利用Copula函数的概念研究了保险投资组合多元金融数据的统计模拟。

Because this, it is meaningful of constructing multivariate copulas.

有鉴于此，构造出多元的copula族就非常有意义。

Copulas are powerful in modeling multivariate dependence distributions in finance and insurance.

在金融和保险中， copula 函数是一种构造多元相关分布函数的有力工具。

Multivariate analysis considering caveolin-1 immunoreactivity in addition to the established prognostic parameters such as pT stage, pN in these patients confirmed that caveolin-1 is an independent functional predictor of poor survival. We further revealed that up-regulated caveolin-1 in CL cells is necessary for mediating filopodia formation which may enhance the invasive ability of lung adenocarcinoma cells.

利用多变数分析的方法分析Caveolin-1及其他已知会影响预后的变数，例如肿瘤大小及淋巴结转移状况等，证实Caveolin-1的确是影响预后的独立变数，最后我们发现Caveolin-1会引起肺腺癌细胞产生伪足，这可能是Caveolin-1造成癌细胞侵袭性增加的原因。

Results Among 13 variables associated with liver fibrosis selected by univariate analysis, age, gamma glutamyltranspeptidase, hyaluronic acid, and platelet count were indentified by multivariate logistic regression analysis as independent factors of fibrosis.

在模型组，对指标依次行单因素分析和多因素Logistic回归分析，筛选出与研究终点相关的独立预测因子，在此基础上构建诊断肝纤维化的指数模型，最后在独立的验证组中检验模型的诊断效率。

Results Among 13 variables associated with liver fibrosis selected by univariate analysis, age, gamma glutamyltranspeptidase, hyaluronic acid, and platelet count were indentified by multivariate logistic regression analysis as independent factors of fibrosis.

结论运用无创诊断模型评价慢性肝炎肝纤维化严重程度具有敏感、准确和可重复性，并有望在一定程度上替代肝活组织检查来监测慢性乙型肝炎肝纤维化的动态变化。

With these conclusions,we present an accurate algorithm to solve the simultaneous inequality of binomial PDF.An optimum solution can be worked out by adopting multivariate half-folded searching algorithm,so that we can get the sampling plan of testability demonstration accurately and quickly.

根据这些结论，提出了求解二项分布的联立不等式的精确算法，在可能的求解区域采用多变量折半搜索的算法，确定联立不等式的最优解，从而可以快速准确地获得测试性验证的抽样方案。

The insect pest and natural enemy communities in Red Fuji apple orchard in Mouping District of Yantai City were quantitatively analyzed by multivariate analysis.

应用多元分析方法对烟台市牟平区红富士苹果园害虫与天敌群落进行了定量分析，采用最优分割法将苹果害虫与天敌群落的时序结构分为5个阶段，并分析了各个时序段害虫及天敌的发生特点。

The method of combining self organizing maping network and multivariate analyze of variates can be used to study the relationship of variables in oxygen-converter process.

分析研究了转炉冶炼过程及控制目标的描述方法和非数值变量的表现形式，确定了转炉终点控制模型的建模方法。

In the multivariate case, the components of considered estimators are not just polynomials of the corresponding observed components only, but can be polynomials of all variates.

在数值计算结果中，我们发现在卜瓦松分布和常态分布的例子，分别考虑二阶和三阶多项式估计，都已能得到相当好的近似效果。

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。