biased estimator是什么意思

网络释义

用法例句

Study on the Restricted Biased Estimation in the Linear Model;

线性模型中的约束型有偏估计的研究

iscusses the problem of linear biased estimation of the parent mean.

本文讨论母体均值的线性有偏估计问题，给出了在均方误差意义下线性有偏估计优于样本均值的充要条件。

To linear regression models Y=Xβ+ε,E(ε)=0,Cov(ε)=σ2V,V>0,the necessary and sufficient condition that biased estimation β*h=(XTV-1X+hI)-1(XTV-1Y+β*) is an admissible estimation is obtained and β*h condition that is superior to ridge estimation is also given.

对于线性回归模型Y=Xβ+,εE(ε)=0,Cov(ε)=σ2V,V>0,给出了回归系数的有偏估计βh*=(XTV-1X+hI)-1(XTV-1Y+β*)(h>0)优于岭估计的条件以及在二次损失下可容许的充要条件。

A class of biased estimate of regression coefficients;

回归系数的一种有偏估计

A new class of biased estimate in the multiple linear model;

多元线性模型参数的有偏估计

In the linear regression model:Y=Xβ+ε,E(s)=0,cov(ε)=σ2v,v>0,reference [1] presented a biased estimate:β*s=(XTV-1X+sI)-1(XTV-1Y+β*),where s>0 was a parameter and β was the generalized least squares estimate.

对于线性回归模型:Y=Xβ+,εE(s)=0,cov(ε)=σ2v,v>0,文献[1]给出了有偏估计sβ*=(XTV-1X+sI)-1(XTV-1Y+β*),其中s>0为参数,β表示线性回归模型的广义最小二乘估计,文献[2]中已经证明了sβ*的可容许性并且有很多优良性质。

better same order bias estimator

较优同阶有偏估计量

asymptotically normal and unbiased estimator

渐近正态无偏估计量

best linear unbiased estimator

最佳线性不偏估计量

Is it possible for an estimator to be unbiased but inconsistent?

是否有可能(一个估计量)是无偏却不一致的？

When the estimator is unbiased, the numerical estimate is frequently also called unbiased.

当估计量无偏时，数字估计值也常叫做无偏的。

Unbiased Estimation and Biased Estimation in the Sense of the Mean Square Error

均方误差意义下的无偏估计与有偏估计

Is it possible for an estimator to be biased in finite sample but consistent in large sample?

一个估计量是否有可能在有限样本中是有偏的但又具有一致性？

While not all useful estimators are unbiased, virtually all economists agree that consistency is a minimal requirement for an estimator.

虽然并不是所有的有用的估计量是无偏的,但是,一致性则是经济学家对估计量的最低要求.

Three Unbiased Estimation for Function Under B(n,p);

B(n,p)中函数p~2的三个无偏估计量

Study on the Restricted Biased Estimation in the Linear Model;

线性模型中的约束型有偏估计的研究

Further Study on Some Problems of Biased Estimation;

关于有偏估计若干问题的进一步研究

Research on Using the Biased Estimator to Resolve GPS Double-Difference Base-line Model

GPS双差基线模型的有偏估计解法研究

An Effective Blind Estimation of OFDM Carrier Frequency Offset

一种有效的OFDM载波频率偏移的盲估计

Bias of the Estimator Double Sampling for Multiple Linear Regression and Estimate of Mean Square Errors of this Estimator;

双重多元线性回归估计量的偏差和均方误差的估计量

Frequency Field Super-resolution Reconstruction Based on Estimation Offset of Matrix Rank

基于矩阵秩估计偏移量的频域超分辨率重建

The Minimax Invariant Quadratie Unbiased Estimation of Variance Componet

方差分量的极小极大不变二次无偏估计

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为了你的这本具有开创性的新工作，对评估波动利用金融计量贸易反"偏斜"的设想。

Research on Restricted Biased Estimation and Preliminary Test Estimation of Parameters in Linear Models

线性模型参数的约束有偏估计和预检验估计研究