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1.
半参数变量含误差函数关系模型的小波估计   总被引:10,自引:0,他引:10  
本文研究半参数变量含误差函数关系模型,应用小波估计法和全最小二乘法得出未知参数和未知函数的估计,在一般的条件下,证明了估计的强相合性、一致强相合性,并给出了误差方差估计的强收敛速度。  相似文献   

2.
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   

3.
对一大类非参数回归函数,基于m(n)相依样本构造了回归函数的近邻估计并在合适的条件下获得了估计的一致强相合性及收敛速度.  相似文献   

4.
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   

5.
NA列递归密度核估计的相合性   总被引:3,自引:0,他引:3  
本文在一定的条件下证明了基于NA样本序列的递归型密度核估计的均方相合性和逐点强相合性,作为在可靠性问题中的应用,利用NA样本构造了生存函数和失效率函数的估计,并讨论了相应的逐点强相合性。  相似文献   

6.
对于固定设计下的半参数函数关系模型,利用广义最小二乘法和一般的非参数权估计方法,得出了未知参数和未知函数的估计.在一定条件下,证明了它们的强相合性及其p(≥2)阶平均相合性.  相似文献   

7.
本文给出了截断数据下非参数回归函数m(x)=E(Y|X=x)的两种估计。在一定的条件下证明了第一种估计的强相合性且给出了第二种估计的强收敛速度。  相似文献   

8.
罗旭 《应用概率统计》1993,9(4):343-349
本文在条件弱于文献[1]的情况下,且在(m1,m2)→+∞的一般形式下,给出了两指标线性平稳过程的样本自协方差估计的强相合速度,同时也给出了两指标AR过程的Y-W估计的强相合速度。  相似文献   

9.
对左截断右删失模型,在不要求分布函数连续的条件下,给出乘积限估计F_n是真分布的一致强相合估计的完整结果.作为推论,还给出右删失模型下的K-M估计和左截断模型下的乘积限估计的一致强相合性的完整结果.  相似文献   

10.
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  
胡舒合 《数学学报》1995,38(4):559-567
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   

11.
Fixed Design Nonparametric Regression with Truncated and Censored Data   总被引:1,自引:0,他引:1  
In this paper we consider a fixed design model in which the observations axe subject to left truncation and right censoring. A generalized product-limit estimator for the conditional distribution at a given covaxiate value is proposed, and an almost sure asymptotic representation of this estimator is established. We also obtain the rate of uniform consistency, weak convergence and a modulus of continuity for this estimator.Applications include trimmed mean and quantile function estimators.  相似文献   

12.
Wu  Yi  Wang  Xue Jun 《数学学报(英文版)》2019,35(5):703-720
In this paper, we mainly study the consistency of the nearest neighbor estimator of the density function based on asymptotically almost negatively associated samples. The weak consistency,strong consistency, uniformly strong consistency and the convergence rates are established under some mild conditions. As applications, we further investigate the strong consistency and the rate of strong consistency for hazard rate function estimator.  相似文献   

13.
We propose a resampling method for left truncated and right censored data with covariables to obtain a bootstrap version of the conditional distribution function estimator. We derive an almost sure representation for this bootstrapped estimator and, as a consequence, the consistency of the bootstrap is obtained. This bootstrap approximation represents an alternative to the normal asymptotic distribution and avoids the estimation of the complicated mean and variance parameters of the latter.  相似文献   

14.
Estimating a Distribution Function for Censored Time Series Data   总被引:1,自引:0,他引:1  
Consider a long term study, where a series of dependent and possibly censored failure times is observed. Suppose that the failure times have a common marginal distribution function, but they exhibit a mode of time series structure such as α-mixing. The inference on the marginal distribution function is of interest to us. The main results of this article show that, under some regularity conditions, the Kaplan–Meier estimator enjoys uniform consistency with rates, and a stochastic process generated by the Kaplan–Meier estimator converges weakly to a certain Gaussian process with a specified covariance structure. Finally, an estimator of the limiting variance of the Kaplan–Meier estimator is proposed and its consistency is established.  相似文献   

15.
荀立  周勇 《数学学报》2017,60(3):451-464
我们研究了左截断右删失数据分位差,基于左截断右删失数据乘积限构造了分位差的经验估计,同时克服经验估计的非光滑性,提出了分位数差的核光滑估计.利用经验过程理论推导出这两个估计的渐近偏差和渐近方差,并且在左截断右删失数据下研究了这两个分位差的大样本性质,获得分位差估计的相合性和渐近正态性.同时给出计算模拟以验证光滑分位差估计的表现,在均方损失的意义下模拟结果表明光滑估计比经验估计具有更好的性质.  相似文献   

16.
Given the function f and the vector-statistic tN which is a mean square consistent estimator of a parameter a, the problem is to estimate f(a). The criteria for the mean square consistency of the estimator f(tN) are considered. In the case where the estimator f(tN) is not mean square consistent, a class of estimators of f(a) is proposed, and it is proved that the estimators of the class are mean square consistent for all distribution of tN. Translated fromStatisticheskie Metody Otsenivaniya i Proverki Gipotez, pp. 44–55, Perm, 1990.  相似文献   

17.
NA样本概率密度函数核估计的相合性   总被引:15,自引:0,他引:15  
设{X  相似文献   

18.
We deal with the least squares estimator for the drift parameters of an Ornstein-Uhlenbeck process with periodic mean function driven by fractional Lévy process. For this estimator, we obtain consistency and the asymptotic distribution. Compared with fractional Ornstein-Uhlenbeck and Ornstein-Uhlenbeck driven by Lévy process, they can be regarded both as a Lévy generalization of fractional Brownian motion and a fractional generaliza- tion of Lévy process.  相似文献   

19.
本文在 NA 样本下,讨论了平均剩余寿命函数和有效函数的非参数递归型估计的相合性和渐近正态性.  相似文献   

20.
Consider a regression model in which the responses are subject to random right censoring. In this model, Beran studied the nonparametric estimation of the conditional cumulative hazard function and the corresponding cumulative distribution function. The main idea is to use smoothing in the covariates. Here we study asymptotic properties of the corresponding hazard function estimator obtained by convolution smoothing of Beran's cumulative hazard estimator. We establish asymptotic expressions for the bias and the variance of the estimator, which together with an asymptotic representation lead to a weak convergence result. Also, the uniform strong consistency of the estimator is obtained.  相似文献   

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