通过采用最小线性方差组合，实现了三种费用估算方法随机不确定性的优化综合。
The paper realizes the optimization combination of uncertainties by using minimum linear variance combination.
使用组合方法获得了稳定的结果和较大的方差减缩。
Stable results and high variance reduction using the compound method have been obtained.
本文将拉丁超立方抽样法与条件期望和对偶变数方差减缩技术组合用于分析船体总纵极限强度可靠性。
This paper proposes Latin hypercube sampling combined with variance reduction techniques of conditional expectation and antithetic variates to assess ultimate strength reliability of ship hull girder.
在资产组合的均值—方差分析的基础上对于公司购并的风险进行了分析，得出了公司购并风险的程度取决于购并元间的相关系数。
Based on the expectation-variance analysis of portfolio, this paper presented that the degree of the risk of the companies' mergers depended on correlative between the mergers' units.
目的通过估计误差方差阵，对多传感器组合导航系统中不同的融合数据进行定位精度比较，为系统定位提供选择数据的依据。
Aim Using the variance matrix of estimated error, positional accuracy can be compared with different mixing together data, it has put forward a kind of basis for system location to select data.
尽管姊妹系和姊妹种的遗传成分在组合表型总方差中所占比例较小，但其在穗部各性状之间仍存在较大分歧。
The genetic constitution of sister line and sister species made up the smaller proportion of the total crosses variance, but it had larger differences among the ear characters.
根据测量方差对单一导航传感器信息进行动态不确定度评定，进而确定组合导航系统的组合不确定度。
Then the dynamic uncertainty of single navigation sensor is evaluated according to this variance, and thus the combined uncertainty of the combined navigation system is worked out.
评述了应用经典统计学和贝叶斯推断检验资产组合均值方差有效性的文献，提出了这些方法在我国应用-的可能性。
The purpose of this paper is to summary the literatures on tests of portfolio mean-variance efficiency in the framework of classical statistics and Bayesian inference.
在传统的金融风险度量模型中，基本都是基于正态分布，然后运用方差一协方差法来求解资产组合的风险价值。
In the traditional financial risk measurement model, the basic method is based on normal distribution, and then the variance-covariance method used to solve the portfolio value at risk.
传统金融理论通常把收益率的方差作为风险的度量指标，并在选择证券组合时假设市场方差为常数。
We usually take variance as the index of capital market venture, and suppose that the variance of market return is a constant.
本文提出了采用套保组合收益率的均值、方差和半方差作为综合衡量套保绩效指标的新方法。
New method of evaluating the hedge performance which adopted the integrated index of mean, variance and low partial moments of the returns of the hedging portfolio was proposed.
通过比较该有效组合边界与国内股票指数在回报-方差平面上所处的位置，可以判断股票投资组合国际化的效应。
Then the diversification benefit would be visualized by comparing the efficient frontier and domestic stock index 's risk-return point on the return-variance plane.
对含两个方差分量的一般线性混合模型，我们给出其方差分量的改进估计，主要对组合谱分解估计进行改进。
We compare the spectral decomposition estimate by the analysis of variance estimate in the linear mixed model with two variance components.
关于调整印花税对噪声收益波动性的影响，研究方法是方差齐次检验，结果是调整证券交易印花税对小组合的影响是显著的。
The results of the study show that the DBMD models can capture the persistence of return volatility, and reveal the joint dynamic relations between price volatility and trading volume.
经方差分析，与不经预处理的组合比较有显著差异，筛选出杜英用大枝径切穗条经预处理及激素处理是最理想的无性繁殖方法。
Through variance analysis, it showed obviously variance comparing with non pre - treatment. It was an ideal way for vegetative propagation to use branch diameter …
经方差分析，与不经预处理的组合比较有显著差异，筛选出杜英用大枝径切穗条经预处理及激素处理是最理想的无性繁殖方法。
Through variance analysis, it showed obviously variance comparing with non pre - treatment. It was an ideal way for vegetative propagation to use branch diameter …
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