1) LIU-type principle component estimate
LIU型主成分估计
2) Liu-type estimation
Liu型估计
1.
By introducing stochastic linear restrictions,a restricted Liu-type estimation is proposed,which generalizes the ordinary restricted least square estimation and restricted ridge estimation.
针对一般带约束的最小二乘估计(ORLSE)在参数估计中处理复共线性的不足,通过引入附加随机线性约束,提出了约束Liu型估计方法。
3) combining ridge and principal components estimate
岭型主成分估计
1.
This paper discusses its superiority of the optimal and classical predictors based on the combining ridge and principal components estimate.
针对有偏降维估计的预测问题,以岭型主成分估计为基础,对广义线性回归模型{y=Xβ+ε,ε-N(0,σ2∑)}的最优预测量与经典预测量的最优性判别问题进行讨论。
2.
The variance optimality of combining ridge and principal components estimate is discussed in the class of reduced-dimension estimates.
研究岭型主成分估计在降维估计类中的方差最优性,证明了它的方差阵在降维估计类中最小,方差阵的特征值最小,方差和及方差积最小。
3.
おhis paper discusses the variance property of combining ridge and principal components estimate in the class of reduceddimension estimators.
讨论了岭型主成分估计在一类降维估计中的方差性质，证明了在一定条件下岭型主成分估计的方差和最小。
4) stein-type principal-componenets Estimate
stein型主成分估计
5) Restricted Liu Estimator
约束型Liu估计
6) Liu-type generalized ridge estimator
Liu型广义岭估计
1.
Based on it,Liu-type generalized ridge estimator has been put forward,which can improve the ill-conditioned equations without increasing the bias.
然后就岭估计会使估值偏差增大的问题,在Liu估计的基础上,推导出一种新的有偏估计方法——Liu型广义岭估计,并给出该方法的模型、解式。
补充资料：主一
1.专一;专心。
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