查询词典 inconsistent estimator

This is the core part of the whole paper.Based on maximum likelihood estimator of generalized linear model which was done before,we apply M-estimator to generalized linear model.

这一部分是本篇文章的核心部分，主要是根据现有文献中对广义线性模型中未知参数β的极大似然估计的方法，我们引入了广义线性模型的M-估计。

Comparing with the maximum likelihood estimator, the new estimator obtaining from this method not only has simple form and need not much computation,but also has good asymptotic properties.

这种方法得到的新的估计量跟极大似然相比，不仅形式更简单，不需要复杂的计算，而且具有相当好的渐近性质。

Also, it is deduced from the conclusions of maximum likelihood estimator that the performance of estimators is independent on source number if the number of snapshots used in estimator is large enough.

证明了它们在低信噪比情况下仍具有渐近无偏的估计性能；另外，利用最大似然估计器的相关结论，证明了在快拍数足够大的情况下，估计器的估计性能与信源数目的多少无关。

Without considering testing error ,we set up a group testing model in the presence of zero observations and derive maximum likelihood estimator and method of moment estimator of parameters.

在不考虑检验误差的情形下，建立一个含零观测值的模型并得到参数的最大概似估计量与动差估计量。

Because the value estimated of reliability characteristic parameters has large error when the number of failure data is fewer by using maximum likelihood estimator, a modified maximum likelihood estimator has been put forward.

本文研究了环境温度、接触压力及电负载对继电器接触可靠性的影响，研究了继电器在常用负载—低电平和中等负载下发生接触失效的机理。

Generalized linear models, which can model a large variety of data, have a wide area of application. The class of GLMs includes, as special cases, linear regression, analysis-of-variance models, log-linear models for the analysis of contingency tables, logistic models for binary data in the form of proportions and many others. Usually, the parameters in the generalized linear models are estimated by the method of maximum likelihood . But, in the literature, the nonrobustness of the maximum likelihood estimator forβhas been studied extensively. The quasi-likelihood estimator of the parameter of the generalized linear model shares the same non-robustness properties.

广义线性模型，可用于对多种类型的数据进行建模，是应用非常广泛的模型，线性回归模型、方差分析模型、用于列联表分析的对数线性模型和逻辑斯谛模型等都是广义线性模型的特例，通常，我们用极大似然的方法估计广义线性模型中的参数，但是，在文献中，对参数β的极大似然估计的非稳健性已经有了广泛的研究，广义线性模型的拟似然估计也显示了非稳健性。

A mean of squared differences image correlation/Kalman filtering motion estimator is analyzed deeply, proving its efficiency and unlbias, and equivalent to maximum likelihood estimator.

对实际中一种常用的均方差图像相关/Kalman滤波位移估值算法进行了深入分析，证明了该算法的有效性和无偏性，并等价于极大似然估值。

The minimax estimator is compared to classical regression. Sufficient conditions of this estimator have also been derived.

得出了在各准则下相对原估计更优的充分条件，说明带随机附加信息后的估计相对于原估计的优良性。

In this paper, the bias of the ratio estimator and the estimateof mean square errors of this estimator with known numerator have been compared and discussed.

给出了分子已知情况下比率估计量的偏差和均方误差以及均方误差的估计，并对两类比率估计量进行了比较。

We give the approximation formulas of the variance of the sample ratio estimator for a population mean and its asymptotically non-biased estimator in multi-stage sampling.

讨论多阶段抽样比率估计及其样本量选择的问题，给出了比率估计抽样均方误差的近似公式及其渐近无偏估计的公式。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。