查询词典 unbiased estimator

Robust best invariant unbiased estimator, quadratical form, variance/covariance components

稳健最优不变二次无偏估计，二次型，方差和协方差分量

Then an adaptive, efficient unbiased estimator of Hurst index based on multiresolution wavelet analysis and weighted regression is presented.

针对基于小波的Hurst指数估计方法的自适应问题，结合方差分析给出了一种有效的解决方法，从而提出了自适应的参数估计方法，并且该方法在一般意义上是无偏的。

An adaptive,efficient unbiased estimator of Hurst index based on the lifting scheme for wavelet transform and correlation coefficient is presented.

对局域网和广域网上大量突发网络流量的分析结果表明，网络流量普遍存在着自相似性和长相关性，其中赫斯特指数是表征网络流量突发性的重要参数。

For robustness of parameter estimation of linear model,we obtain the maximal classes of the error distribution,in which Generalized Least Squares Estimate,Gauss-Markov Estimate of estimable function of parameters,and Minimum Norm Quadratic Unbiased Estimator of variance maintain their optimal statistical properties.

这些研究成果不仪具有比较深刻的理论意义，还具有较为广泛的应用价值。

A class of unbiased estimator of variogram is obtained in this paper.

本文给出了VARIOGRAM的一个无偏估计类。

For noncentrality parameter matrix in noncentral wishart distribution, based on usual unbiased estimator, a series of pre-test estimators are obtained.

1对于非中心Wishart分布的非中心参数矩阵，本文基于通常的无偏估计给出了一系列的预检验估计。

Ui is not observable, but we can find an unbiased estimator for ui.

ui 是不可观测的，但我们能够找到一个ui的无偏

Theorem 10.3: Under assumptions TS.1 – 5, the unbiased estimator of σ2 is

定理10.3：在假定TS.1-5下，σ2的无偏估计量为

Under assumptions MLR.1 through MLR.4, the OLS estimators are unbiased estimator of the population parameters, that is

在假定MLR.1～MLR.4下，OLS估计量是总体参数的无偏估计量，即

The theoretical analysis and computer simulations demonstrate that the method is an unbiased estimator and its estimation precision is superior to the sliding correlator.

理论分析和仿真实验结果表明，时延估计的频域处理方法是一种无偏估计，且其估计精度远远高于滑动相关方法。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。