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排序方式: 共有179条查询结果,搜索用时 437 毫秒
1.
Dietrich Stoyan Helga Stoyan Gunter Döge 《Australian & New Zealand Journal of Statistics》2004,46(1):67-77
This paper reports on the mixing of Euro coins from different countries of origin in Europe, which started on 1 January 2002. There is an interesting conclusion: that the mobility of small and large denominations is different. The long‐term behaviour of the mixing process is studied using a simple deterministic model and data from Germany, France and the Netherlands. The analysis leads to predictions about the future progress of the mixing process. 相似文献
2.
The authors extend the block external bootstrap to partially linear regression models with strongly mixing, nonstationary error terms. In addition to providing an approximate distribution for the semiparametric least square estimator of the parametric component, they propose a consistent estimator of the co‐variance matrix of this estimator. 相似文献
3.
This note presents a measure of similarity between connected nodes in terms of centrality based on Euclidean distances, and compares it to ‘assortative mixing’ [Newman, M.E.J., 2002. Assortative mixing in networks. Physical Review Letters 89, 208701], which is based on Pearson correlation coefficient. This study suggests that the measure based on Euclidean distances may be more appropriate for relatively smaller (N < 500) and denser networks. 相似文献
4.
情景喜剧《武林外传》中的语域偏离与语篇幽默效果 总被引:1,自引:0,他引:1
张凌 《宁德师专学报(哲学社会科学版)》2008,(1):57-61
古装情景喜剧《武林外传》在全国热播,掀起一阵收视高潮,其原因值得探究。本文运用Hauiday的语域理论,试从语域转换、语域混合和语域借用角度来分析该剧的幽默语言特点,探究其产生具大幽默效应的独特魅力。 相似文献
5.
AbstractWe will establish the local asymptotic normality (LAN) for fractional autoregressive long memory model in the case of strong mixing noises. This opens the way in future work to construct an adaptive estimator and construct optimal tests for the parameters. To check the feasibility and validity of our theoretical results a simulations study is considered. 相似文献
6.
时英英 《成都大学学报(社会科学)》2016,(4):67-71
"檄"、"移"作为古代两种"意用小异,而体义大同"的文体,于两汉时期出现并称、混称现象。此现象的出现既是两汉一统下政治局势稳定及内部政务活动日益频繁的结果,更是二者文体功能不断扩展、丰富,"移"体文特殊文体表现方式的必然结果。 相似文献
7.
Christophe Ange Napolon Biscio Rasmus Waagepetersen 《Scandinavian Journal of Statistics》2019,46(4):1168-1190
We establish a central limit theorem for multivariate summary statistics of nonstationary α‐mixing spatial point processes and a subsampling estimator of the covariance matrix of such statistics. The central limit theorem is crucial for establishing asymptotic properties of estimators in statistics for spatial point processes. The covariance matrix subsampling estimator is flexible and model free. It is needed, for example, to construct confidence intervals and ellipsoids based on asymptotic normality of estimators. We also provide a simulation study investigating an application of our results to estimating functions. 相似文献
8.
T. H. M. Abouelmagd A. A. E. Ahmed Enayat M. Abd Elrazik Mahmoud M. Mansour A-Hadi N. Ahmed 《统计学通讯:理论与方法》2019,48(12):2904-2916
In this paper, a comparison between the life distribution of a new unit with that of a used unit in the increasing convex order is made leading to a new class of life distributions which we call “new better than used in convex ordering of second order”. This class includes as subclasses the NBU and the NBUC and is a subclass of the NBUCA class. Preservation properties under convolution, random maxima, mixing and formation of coherent structures are established. Stochastic comparisons of the excess lifetime when the inter-arrival times belong to the NBUC(2) class are developed. Some applications of Poisson shock models and a test of exponentiality against NBUC(2) alternative are presented. 相似文献
9.
An often-cited fact regarding mixing or mixture distributions is that their density functions are able to approximate the density function of any unknown distribution to arbitrary degrees of accuracy, provided that the mixing or mixture distribution is sufficiently complex. This fact is often not made concrete. We investigate and review theorems that provide approximation bounds for mixing distributions. Connections between the approximation bounds of mixing distributions and estimation bounds for the maximum likelihood estimator of finite mixtures of location-scale distributions are reviewed. 相似文献
10.
In this paper, we investigate the k-nearest neighbours (kNN) estimation of nonparametric regression model for strong mixing functional time series data. More precisely, we establish the uniform almost complete convergence rate of the kNN estimator under some mild conditions. Furthermore, a simulation study and an empirical application to the real data analysis of sea surface temperature (SST) are carried out to illustrate the finite sample performances and the usefulness of the kNN approach. 相似文献