共查询到20条相似文献,搜索用时 562 毫秒
1.
FEEDBACKCONTROLOFSINGLE-LINKFLEXIBLEARMSFENGDEXING(冯德兴);ZHANGWEITAO(张维韬)(InstituteofSystemsScience,theChineseAcademyofScience... 相似文献
2.
ASINGULARSINGULARLY-PERTURBEDBOUNDARYVALUEPROBLEM¥LinWuzhong(林武忠);WangZhiming(汪志鸣)(EastChinaNormalUniversity,上海华东师范大学,邮编:2000... 相似文献
3.
GLOBALATTRACTIVITYINADISCRETEMODELOF NICHOLSON'S BLOWFLIESLiJingwen(李经文)(ShaoyangTeachersCollege湖南邵阳师专,邮编;422000)Abstract:Cons... 相似文献
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SOME RESULTS RELATED TO THE SEPARABLE QUOTIENT PROBLEM 总被引:1,自引:0,他引:1
钟怀杰 《数学物理学报(B辑英文版)》1996,(3)
SOMERESULTSRELATEDTOTHESEPARABLEQUOTIENTPROBLEM¥(钟怀杰)ZhongHuaijie(Dept.ofMath.,FujianNormalUniversity,Fuzhou350007,China.)Abs... 相似文献
5.
赵为礼 《数学物理学报(B辑英文版)》1994,(4)
ACLASSOFSINGULARLYPERTURBEDNONLINEARROBINPROBLEMSZhaoWeili(赵为礼)(DepartmentofMathematics.JilinUniversity,Changchun130023,China... 相似文献
6.
韦来生 《高校应用数学学报(A辑)》1997,(2):163-174
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
7.
THEALMOSTPERIODICSOLUTIONANDBOUNDEDSOLUTIONOFPERTURBEDSYSTEMSLinMuren(林木仁)(FuzhouUniversity福州大学,邮编:350002)Abstract:Inthispape... 相似文献
8.
THEGLOBALSMOOTHSOLUTIONFORHIGH-DIMENSIONALHYPERBOLIC SYSTEMSHuZhiming(扈志明)ZhangTong(张同)(InstituteofMathematics,Chin.Acad.ofSe... 相似文献
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TIME OPTIMAL IMPLUSE CONTROL PROBLEMSTIMEOPTIMALIMPLUSECONTROLPROBLEMS¥XuZongyun(FudanUniversity,)Abstract:Inthispaper,aclass... 相似文献
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ON THE OPTIMALITY IN GENERAL SENSE FOR ODD-BLOCK SEARCH 总被引:1,自引:0,他引:1
ONTHEOPTIMALITYINGENERALSENSEFORODD-BLOCKSEARCH¥CHENMUFA(陈木法)(DepartmentofMathematics,BeijingNormalUniverszty,Beijing100875,C... 相似文献
11.
考虑在错误的先验假定下线性模型回归系数的Bayes估计,将其与最小二乘估计进行比较,提出了Bayes估计与LSE的一种新的相对效率e5,给出了e5的基本性质,同时导出了它的上下界. 相似文献
12.
错误先验假定下Bayes线性无偏估计的稳健性 总被引:1,自引:0,他引:1
本文基于错误的先验假定获得了一般线性模型下可估函数的Bayes线性无偏估计(BLUE), 证明了在均方误差矩阵(MSEM)准则和后验Pitman Closeness (PPC)准则下BLUE相对于最小二乘估计(LSE)的优良性, 并导出了它们的相对效率的界, 从而获得BLUE的稳健性. 相似文献
13.
The Superiorities of Simultaneous Empirical Bayes Estimation for the Regression Coefficients and Error-Variance in Linear Model
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When the hyperparameters of prior
distribution are partly known in linear model, the simultaneous
parametric empirical Bayes estimators (PEBE) of the regression
coefficients and error variance are constructed. The superiority of
PEBE over the least squares estimator (LSE) of regression
coefficients is investigated in terms of the the mean square error
matrix (MSEM) criterion, and the superiority of PEBE over LSE of the
error variance is discussed under the the mean square error (MSE)
criterion. Finally, when all hyperparameters are unknown, the PEBE
of regression coefficients and error variance are reconstructed and
the superiority of them over LSE under the MSE criterion are studied
by simulation methods. 相似文献
14.
In this paper, the Bayes estimator of the error variance is derived in a linear regression model, and the parametric empirical Bayes estimator (PEBE) is constructed. The superiority of the PEBE over the least squares estimator (LSE) is investigated under the mean square error (MSE) criterion. Finally, some simulation results for the PEBE are obtained. 相似文献
15.
In this article,the Bayes linear unbiased estimator (BALUE) of parameters is derived for the multivariate linear models.The superiorities of the BALUE over the least square estimator (LSE) is studied in terms of the mean square error matrix (MSEM) criterion and Bayesian Pitman closeness (PC) criterion. 相似文献
16.
对线性模型参数,讨论了Bayes估计的Pitman最优性,将已有结果进行了改进,去掉了附加条件,证明了在Pitman准则下,Bayes估计一致优于最小二乘估计(LSE),在此基础上,提出了一种基于先验信息的方差分量估计,通过和基于LSE的方差分量估计作比较,证明了新估计是无偏估计且有更小的均方误差.最后,证明了在Pitman准则下生长曲线模型参数的Bayes估计优于最佳线性无偏估计. 相似文献
17.
In this paper, we propose a new biased estimator of the regression parameters, the generalized ridge and principal correlation estimator. We present its some properties and prove that it is superior to LSE (least squares estimator), principal correlation estimator, ridge and principal correlation estimator under MSE (mean squares error) and PMC (Pitman closeness) criterion, respectively. 相似文献
18.
用线性贝叶斯方法去同时估计线性模型中回归系数和误差方差,并在不知道先验分布具体形式的情况下,得到了线性贝叶斯估计的表达式.在均方误差矩阵准则下,证明了其优于最小二乘估计和极大似然估计.与利用MCMC算法得到的贝叶斯估计相比,线性贝叶斯估计具有显式表达式并且更方便使用.对于几种不同的先验分布,数值模拟结果表明线性贝叶斯估... 相似文献
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在线性模型中回归系数与误差方差具有正态-逆Gamma先验时,导出了回归系数与误差方差的同时Bayes估计.在均方误差矩阵准则和Bayes Pitman closeness准则下,研究了回归系数的Bayes估计相对于最小二乘(LS)估计的优良性,还讨论了误差方差的Bayes估计在均方误差准则下相对于LS估计的优良性. 相似文献