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1.
Recently R. S. Singh has studied the empirical Bayes (EB) estimation in a multiple linearregression model. In this paper we consider the EB test of regression coefficient β for this model. Wework out the EB test decision rule by using kernel estimation of multivariate density function and itsfirst order partial derivatives. We obtain its asymptotically optimal (a. o.) property under thecondition E||β||_1<∞. It is shown that tbe convergence rates of this EB test decision rule areO(n~(-(r-1)λ/p+r)) under the condition E||β||~(pr/2-λ)<∞. where an integer r>l, 0相似文献   

2.
ASYMPTOTICALLYOPTIMALEMPIRICALBAYESESTIMATIONFORTHEPARAMETERSOFMULTI-PARAMETERDISCRETEEXPONENTIALFAMILY(杨亚宁,韦来生)¥YangYaning;W...  相似文献   

3.
The parameter estimation and the coefficient of contamination for the regression models with repeated measures are studied when its response variables are contaminated by another random variable sequence. Under the suitable conditions it is proved that the estimators which are established in the paper are strongly consistent estimators.  相似文献   

4.
A nuisance parameter is introduced to the semimartingale regression model proposed by Aalen(1980), and we construct two estimators for this nuisance parameter based on the results ofparametric estimation which were given by Mckeague (1986) using the method of sieves. Theconsistency of the estimators is also provided.  相似文献   

5.
ESTIMATIONFORTHEAYMPTOTICVARIANCEOFPARAMETRICESTIMATESINPARTIALLINEARMODELWITHCENSOREDDATA¥QinGengsheng(秦更生)CaiLei(蔡雷)(Dept.o...  相似文献   

6.
ADMISSIBILITYFORLINEARESTIMATESONREGRESSIONCOEFFICIENTSINAGENERALMULTIVARIATELINEARMODELXieMinyu(谢民育)(DepartmentofMathematics...  相似文献   

7.
§1. Introduction and Main Results Let (X,θ), (X_1, θ~1), …, (X_n, θ_n) be R~d×{0, 1} valued independent identically distributed (iid) random variables (r. v.), with P (θ=1)=P_1 and P(θ=0)=p0=1-p1. Let the conditional density function of X given θ=i be f_i(x)dx, i=0, 1. (X_1, θ_1), …, (X_n, θ_n) are known  相似文献   

8.
§1. Introduction and Main Results Let (X, θ), (X_1, θ_1), ..., (X_n, θ_n) be R~d×{0, 1} valued independent identically distributed (iid) random variables (r. v.), with P(θ=1)=p_1 and P(θ=0)=p_0=1-p_1. Let the conditional density function of X given θ=i be f_i(x)dx, i=0, 1. (X_1, θ_1),..., (X_n, θ_n) are known  相似文献   

9.
Consider the two-sided truncation distribution families written in the form f(x,θ)=w(θ_1, θ_2)·h(x)I_([θ_1,θ_2])(x)dx, where θ=(θ_1,θ_2). T(X)=(t_1(X), t_2(X))=(min(X_1, …, X_m), max(X_1, …, X_m)) is a sufficient statistic and we denote its marginal density by f(t)dμ~T. The prior distribution of θ belong to the famlly. In this paper, we have constructed the empirical Bayes (EB) estimator of θ, φ_n(t), by using the kernel estimation of f(t) and established its convergence rates. Under suitable conditions it is shown that the rates of convergenc of EB estimator are O(N~-((λ中-1)(k 1))/(2(k 2)k)), where the neural number k>1 and 1/2<λ<1-1/2k. Finally an example about this result is given.  相似文献   

10.
This paper uses a grouping-adjusting procedure to the data from a median linear regression model, and estimtes the regression coefficients by the method of weighted least squares. This method simplifies computation and in the meantime, preserves the same asymptotic normal distribution for the estimator, as in the ordinary minimum L_1-norm estimates.  相似文献   

11.
Poisson分布参数的渐近最优和可容许的经验Bayes估计   总被引:2,自引:0,他引:2  
李凌之 《数学杂志》1998,18(4):461-465
设X及(X1,X2…,Xn)分别为取自Poisson分布P(θ)的当前样本和历史样本,参数θ的先验分布族F={Γ(m,β):β>0},其中m>0已知,Γ(m,β)表示参数为(m,β)的伽玛分布.对p>0,q>2的任意两个实数,记tn=X+∑ni=1Xi+pX+∑ni=1Xi+p+q+(n+1)m(X+m)则在平方损失函数l(θ,d)=(θ-d)2下,tn是θ的渐近最优和可容许的经验Bayes估计,而且收敛速度为O(1n).  相似文献   

12.
陈飞跃 《经济数学》2006,23(2):197-200
文献[1]在平方损失及超参数α服从伽玛分布且X1′,…Xn′(历史样本)和X(当前样本)独立同分布的条件下,构造了指数分布族{f(x|λ)=λe-λx,λ>0,x>0}的参数λ的渐近最优与可容许的经验Bayes估计.本文在超参数α分别服从伽与分布与指数分布且当前样本由X扩充为X1,…,Xm的情况下,重新构造了指数分布族参数λ的渐进最优与可容许的经验Bayes估计,从而将文献[1]的结果进行了推广.  相似文献   

13.
本文研究了线性指数分布参数的渐近最优的经验Bayes估计问题.利用概率密度函数的核估计,构造了参数的经验Bayes(EB)估计,获得了所提出的EB估计是渐近最优的.  相似文献   

14.
利用多元密度函数及其导数的核估计方法,建立了多元线性模型回归系数的经验Bayes估计,并给出了这种估计的一致收敛速度。  相似文献   

15.
本文对刻度指数族在加权平方损失下获得了参数的Bayes估计,并构造了相应的经验Bayes(EB)估计,证明了所提出的EB估计是渐近最优的且有收敛速度,其中1/2≤λ<1,s≥3是一给定的整数.最后,给出了刻度指数族EB估计的两个应用.  相似文献   

16.
双边截断型分布族参数的经验Bayes估计   总被引:4,自引:0,他引:4  
在Linex损失函数下,讨论一类双边截断型分布族参数的经验Bayes(EB)估计问题,构造了参数的EB估计,在适当的条件下给出了该估计的收敛速度,最后给出例子,说明定理条件的合理性。  相似文献   

17.
本文考虑单向分类的方差分析模型,构造了P′α的线性Bayes估计和经验Bayes(EB)估计,此处αa×1是效应参数向量,Pa×k是常数矩阵.在较一般的条件下,基于均方误差矩阵准则和PitmanCloseness准则,我们分别证明了EB估计优于最小二乘估计  相似文献   

18.
刻度指数族参数的经验Bayes检验问题:NA样本情形   总被引:28,自引:0,他引:28  
本文利用同分布负相协(NA)样本情形概率密度函数的核估计构造了刻度指数族参数的经验Bayes(EB)检验函数,并获得了它的渐近最优(a.o.)性。在适当的条件下证明了所提出的EB检验函数收敛速度可任意接近o(n^-12)。最后给出了一个有关本文主要结果的例子。  相似文献   

19.
证明出任何一个多维参数性经验Bayes估计的一致收敛速度不可能超过1,从而说明文[1]中构造的线性经验Bayes估计的一致收敛速度1是最优的。  相似文献   

20.
本文在错误指定下给出了多元线性模型的最优线性 Bayes估计 ,在矩阵损失下讨论了其相对于最小二乘法估计的优良性 ,且获得 Bayes估计的容许性和极小极大性  相似文献   

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