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在NA相依样本条件下,对未知分布函数F(x)的递归核估计进行研究,在适当的条件下,得到了估计的r^-阶平均相合速度,逐点强相合和一致强相合速度,作为应用,讨论了平均剩余寿命函数估计的相合速度。 相似文献
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本文对NA样本,在一定条件下,研究了非参数回归函数导数核估计逐点强相合及一致强相合的收敛速度. 相似文献
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NA样本最近邻密度估计的相合性 总被引:6,自引:0,他引:6
在NA样本下研究最近邻密度估计的相合性,给出弱相合性、强相合性、一致强相合性以及它们的收敛速度的充分条件.同时研究了失效率函数估计的一致强相合性 相似文献
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NA样本非参数回归权函数估计的强相合性 总被引:1,自引:0,他引:1
在 NA样本下 ,讨论了非参数回归模型中权函数估计的强相合性及强一致相合性 ,并把这个结果应用于 Gasser- Muller估计和 Priestley and Chao估计 . 相似文献
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在NA相依样本下,研究固定设计非参数回归权函数估计的强相合性和完全收敛性,获得了一些较合理的充分条件,较好地推广和改进了Georgiev在独立情形下所得到的相应结论。 相似文献
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王小明 《数学物理学报(A辑)》2000,20(3):386-393
该文绘出了球面数据密度函数的核近邻估计,通过对核估计与近邻估计相互关系的讨论,建立了核近邻估计的逐点强相合性及一致强相合性. 相似文献
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本文研究负超可加相依样本的密度函数核估计相合性.利用负超可加相依序列的不等式与性质,获得了密度函数核估计的逐点相和性和一致相和性以及r阶矩相和性. 相似文献
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分布自由的回归函数近邻核估计的相合性 总被引:1,自引:0,他引:1
本文获得了基于混合,α-混合样本的回归函数核估计,随机窗宽核估计,近邻核估计的强相合性,积分绝对误差的强相合性与平均相合性,所得结果对所有x的分布μ均成立,其中核函数的支撑可以无界,甚至可以是不可积的。 相似文献
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Yasushi Nagata 《Annals of the Institute of Statistical Mathematics》1983,35(1):365-373
Summary Let a random variableX follow ap-variate normal distributionN
p
(θ, I
p
) with an unknownp×1 vector θ andp×p identity matrixI
p
. The admissibility of a preliminary test estimator using AIC (Akaike's Information Criterion) procedure will be shown ifp=1 and its inadmissibility will be shown ifp≧3 under the loss function based on Kullback-Leibler information measure. Furthermore the two sample case is also considered. 相似文献
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In this paper, we propose an information-theoretic approach to the effective usage of auxiliary information from survey data,
which is suitable for both simple and complex survey data. Our estimator under simple random sampling without replacement
will be consistent and asymptotically normal. We show that the resulting estimates have smaller asymptotic variances than
the usual estimates which do not use auxiliary information. For more complex survey designs, the resulting estimator is in
essence asymptotically equivalent to a pseudo empirical likelihood estimator. Results of a limited simulation study show that
the proposed estimators perform well among a number of competitors. 相似文献
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《Journal of computational and graphical statistics》2013,22(2):330-340
The estimation of the nonparametric maximum likelihood estimate (NPMLE) of the bivariate distribution function on interval-censored data is a recent topic of research. Among other things, it provides a basic tool for checking a parametric model for the bivariate failure times. As a first step in the estimation of the NPMLE for bivariate interval-censored data, the regions of possible support—that is, the rectangles with nonzero mass—are calculated. For this step a new, fast algorithm is introduced here and compared with two existing algorithms. The advantages of our algorithm will be illustrated on the emergence times of permanent teeth on data from the longitudinal Signal® Tandmobiel study. 相似文献
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人口普查后独立组织一次调查估计其覆盖误差率。美国从1980年开始在人口普查的事后质量检查中使用双系统估计量来估计人口总体真实人口数,并依据它来估计普查的覆盖误差率。后来,这种估计量在世界上其他一些国家人口普查的事后质量检查中也先后被采用。本文以美国2000年人口普查的事后质量检查方案ACE和2010年将要实施的新方案CCM为基础,解读构造双系统估计量的若干理论与实践问题。 相似文献
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NethalK.Jajo 《应用数学学报(英文版)》2005,21(2):209-224
The concern over outliers is old since Bernoulli (see [12]), reviewed historically by [11] and updated with [10] in their encyclopedia textbook. James et al.~([46]) used simulation technique to compare some recent published outlier detection procedures.The history of adept and diagnosis of outliers is traced from old and presence comments. Theil-type or Rank, Brown-Mood, L_p, M, adaptive M, GM, and Trimmed-Winsorization estimators are the most popular estimators that we will review in this paper as an application to outlier accommodation. We will review and compare the most numerical and graphical displays based on residuals to flag outliers. 相似文献
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本文讨论带约束生长曲线模型中回归系数线性估计的泛容许性,给出了回归系数的线性估计在线性估计类中是泛容许估计的充要条件。 相似文献
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AClassofLinearBiasedEstimatorsofRegressionParameterMatrixintheGrowthCurveModel¥GuiQingming(ZhengzhouInstituteofSurveyingandMa... 相似文献
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This paper is devoted to the extension of the Bayesian method for the point estimation, when the available information is ‘vague’.In the nonfuzzy case, the parametric estimation can be approached as a particularization in the statistical decision problem. This motivates us to accomplish the mentioned extension by looking at the parametric estimation in the fuzzy case as a special situation in the fuzzy decision problem (defined by Tanaka, Okuda and Asia).In this way, concepts in the fuzzy decision problem are first ‘expressed’ in the estimation terminology. Then, on the basis of these concepts, we shall introduce some notions and state some interesting results. Finally, several illustrative examples will be exposed. 相似文献