查询词典 unbiased

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。

We make the following assumption for When 2 is positive definite matrix, different estimators about matrix of regression coefficients and inefficiency of Least squares estimate have been discussed in many documents. Considered 2 is nonnegative definite matrix, this thesis derives Best linear unbiased Estimate of parameter matrix B and estimable parameter function KBL under the meaning of matrix nonnegative definite and the property of maximum probability of BLUE is investigated.

当∑＞0时，众多文献讨论了回归系数阵的各种估计及LSE的有效性，本文考虑了当∑≥0的情形，给出了回归系数阵B及其可估参数函数KBL的在矩阵非负定意义下的最优估计，研究了它的一个最大概率性质，并且讨论了最小二乘估计成为最佳线性无偏估计的充分必要条件，在此基础上给出了均值矩阵的最小二乘估计与BLUE的偏差估计，定义了LSE相对于BLUE的一个相对效率，并给出了它的界。

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。

Then the best linear unbiased estimate method for interval data of normal distribution, Weibull distribution, extreme value distribution or other location-scale parameter models is presented. The presented method has higher precision, and solves the problem of reliability assessment with small sample of storage life.

在此基础上，提出一种区间数据最佳线性无偏估计方法，并对正态分布、极值分布、Weibull分布等常用的位置一尺度分布进行讨论，该方法能够对产品贮存寿命进行小样本预测和可靠性评定。

An sufficient condition under which the exact F test is uniformly most powerful unbiased test is discussed.

对于给出的精确的F检验给出检验存在条件以及是一致最优无偏检验的条件。

In this role you are able to settle disputes with the most unbiased flair.

在这个角色中你能够没有偏见的解决争端。

I lost a lot that day -- my dad was my mentor, my friend, the guy I could joke with, the guy who would give me an unbiased opinion on anything,' Mrs. Gogia says.

戈吉亚说，那天我失去了很多──我父亲是我的导师、益友、可以开玩笑的对象，他在任何事情上都会给我中肯的意见。

he fact that the sales in the Mexican and Guatemalan markets were at different levels of trade was apparent from the application itself, and an unbiased and objective investigating authority should have recognized this fact without the need for it to be pointed out.

墨西哥和危地马拉销售市场处于不同的贸易水平这一事实在申请中是明显的，因而公平且客观的调查当局应该认识到这一事实，且不需要特别指出。

I}o address the highly dynamic characteristics of system nodes, a self-tuning heartbeat fault detection algorithm, which can combine heartbeat strategy with unbiased grey prediction model, was designed to improve the fault detection duality of system according to the application needs and network environment changes.

它结合心跳策略和无偏灰色预测模型，根据应用需求和网络环境的变化动态地改变检测的质量，在保持一定检测时间的前提下，提高了故障检测的精度。

It is our belief that total impartiality of a testing facility is paramount in ensuring an unbiased evaluation.

完全公正的测试在保证赌博标准的公平方面是极其重要的——这是我们的理念。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。