estimate variance
英 [ˈestɪmət ˈveəriəns]
美 [ˈestɪmət ˈveriəns]
估计方差
双语例句
- Non-negative estimate of variance and its properties in measurement error model
测量误差模型中方差的一个非负估计及其性质 - Shrunken Principal Components Estimate and Its Variance Optimality;
压缩主成分估计的方差最优性质（英文） - After analyzing the statistical property of the decision variable, we use the Maximum Likelihood ( ML) criterion to adaptively estimate the variance of the Gaussian noise.
我们在对判决量统计特性分析的基础上，采用最大似然估计准则估计出等效高斯白噪声方差V.由此，我们得到了判决门限值的自适应设置方法。 - Generalized spectral decomposition estimate of variance components The Spectra of Hypercubes
方差分量的广义谱分解估计 - Because the residual variance is the least. It is thinked that it is wise to estimate the variance and genetic parameters of reproduction trait using Model ⅲ.
因此认为繁殖性状应用模型Ⅲ进行遗传参数估计比较合适。 - The Marginal Maximum Likelihood Estimate of Variance
方差的边缘极大似然估计 - A method is presented for estimating the location and dispersion effects from these experiments. Firstly, we estimate the variance and the mean of each cell with maximum likelihood;
本文对带有右截尾数据的有重复因子试验，提出了另一种分析位置效应和散度效应的方法：首先，在每一个试验点，对重复试验观察值用极大似然法估计出均值和方差； - The Mixed Estimate and Biased Estimate of Error Variance
误差方差的混合估计和有偏估计 - This paper presents a new way to estimate the measurement variance of noise in the analytical chemistry signals for the Kalman filter by means of implementing the wavelet analysis, according to that wavelet transformation can separate the noise in high frequency band from the original signal.
根据小波变换能从原始信号中分离高频段噪声的特性，本文提出一个用小波分析法从分析化学信号中估计Kalman滤波法所需要的噪声测量方差的新途径。 - Non-homogeneous quadratic form admissible estimate for error variance: curve growth model with common mean
误差方差的非齐次二次型容许估计&具有共同均值的增长曲线模型 - Under many conditions, its frequency distinction and estimate variance can satisfy the practical appliance.
在多数情况下，其频率分辨率、估计方差能满足实际应用。 - To study a suitable measure to compare the risk of two exposures. The concept of excess risk is used to establish the comparative measure, rer, and Taylor's series approach is used to estimate the variance of the rer.
为探讨对两个暴露因素所产生的疾病效应作比较的合理指标，应用超额危险性的概念建立比较指标和用Taylor公式推导其方差。 - The Estimate of Variance Components Based on M-Estimate Residuals
基于M残差的方差分量估计 - The admissibility of non-homogeneous quadratic form estimate of variance on the growth curve model was studied under quadratic loss function.
在二次损失函数下，研究了增长曲线模型误差方差的非齐次二次型估计的可容许性问题。 - The estimate for error variance in two classes of growth curve model& the Quadratic Admissible Estimate
两类增长曲线模型误差方差估计&二次型容许估计 - For fractional factorial designs several different approaches to estimate this variance have been suggested.
对因子设计而言，现已有若干种不同方法来估计实验误差方差。 - Using a GARCH specification, I estimate minimum variance hedge ratios for electricity futures. Finally, I expound the reality significance of the electricity futures market in the reform of electricity market.
通过GARCH模型估算了COB电力期货合约的最佳套期保值比率，最后阐述了建立电力期货市场对我国电力工业改革的现实意义。 - The approach based on Maximum Likeihood ( MLE) treats the unknown temporal variable as a constant, which generates a larger estimate variance, In this paper, the relation model of known temporal information and unknown temporal variable has been established.
Kirilov的基于极大似然估计（Maxi－mumLikelihoodEstimation，MLE）的推理方法将未知时间变量看作常数，估计方差较大。 - The study stressed on the estimate arithmetic, variance-covariance models and the degree of uncertainty.
强调了森林生物量模型的稳健估计算法、模型的方差-协方差模型及其不确定度。 - We used minimum norm quadratic unbiased estimation ( MINQUE) methods with 1 for all prior components ( MINQUE ( 1)) to estimate the variance components for single trait and covariance components between two traits.
我们用最小范数二阶无偏估算法（MINQUE）来估算单性状的方差分量和性状间的协方差分量，通过设定参数的先验值为1（MINQUE（1））。 - Furthermore, ridge estimate is given, it is shown that ridge estimate is uniformly superior to is estimate of error variance and is admissible estimate under the suitable condition.
进一步，讨论了误差方差的岭估计及其优良性，证明了它是误差方差的可容许估计。 - And the estimate formular of variance part in G-M model was simplified.
化简了G&M模型的方差分量估计公式。 - Research on size of neighborhood to estimate the variance of wavelet coefficient
估计小波系数方差邻域大小的研究 - A necessary and sufficient condition that the quadratic estimate for error variance in linear model is ■-admissible
线性模型中误差方差的二次型估计是■-可容许的充要条件 - We can get its estimating methods sparately and aclvance how to estimate system variance and confidence coefficient are problems that are need further researches.
并指出在GIS数据中如何估计系统方差和置信系数，是需要深入研究和解决的难题。 - In practical applications where the variance of noise is unknown or changeable, this approach can estimate the noise variance and the threshold adaptively.
针对实际应用中噪声方差未知或变化的情况，自适应地估计噪声强度和阈值。 - Distance between dots should be uniform in the field measurement. Sampling number should be estimated by certain believe level, estimate accuracy and variance coefficient. 8.
田间测墒时，点与点之间的距离要均匀，取样数目可以根据一定的置信水平、估值精度、变异系数做估算。 - Spatially Adaptive context modeling can efficiently estimate and determine variance and threshold of the coefficient matrixes after the transformation and showed good local adaptation and accuracy.
利用空间自适应Context模型处理变换后系数矩阵的方差估计和阈值确定，具有较强的局部自适应能力和准确性。 - Most paper chose the square neighborhood of the current point to estimate the coefficient variance. This form of neighborhood selection considers that the wavelet coefficients energy distribution of different direction is isotropic, but it does not match the actual distribution of the wavelet coefficients.
现有的方法中大多是选取当前系数点周围的方形邻域来估计方差，这种邻域的选取方式默认了小波系数在不同方向的能量分布是同性的，与实际小波分解的分布特性是不符合的。 - The results show that the statistical inference based on the likelihood function, though do not need to estimate the variance, the asymptotic distribution of the statistic is not easy to be proved, when deducing the testing statistics in high dimensions.
结果表明通过似然函数进行的统计推断虽不需要估计方差，但推断的统计量在高维度时，其统计量的渐进分布性质不易证明。