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621.
ABSTRACTWe consider semiparametric inference on the partially linearsingle-index model (PLSIM). The generalized likelihood ratio (GLR) test is proposed to examine whether or not a family of new semiparametric models fits adequately our given data in the PLSIM. A new GLR statistic is established to deal with the testing of the index parameter α0 in the PLSIM. The newly proposed statistic is shown to asymptotically follow a χ2-distribution with the scale constant and the degrees of freedom being independent of the nuisance parameters or function. Some finite sample simulations and a real example are used to illustrate our proposed methodology. 相似文献
622.
AbstractIn this article, we investigate the tail propertiesof the generalized Maxwell distribution and gain an asymptoticbehavior of its Mills-type ratio. Meanwhile, we show two applications. The first application thinks about the asymptotic property of the ratio of density functions and the ratio of the tails of the generalized Maxwell and classical Maxwell distributions. Another application obtains the asymptotic distribution of the partial maximum of an independent and identically distributed sequence from the distribution. 相似文献
623.
A more generalized stirling distribution of the second kind (MGSDSK) is introduced in this paper as the distribution of the sum of the independent but not identically distributed left truncated Poisson variables. Properties of MGSDSK are studied. The recursion relation and decomposition of MGSDSK are obtained. The rth moment is also found and a new recurrence relationship for them are given. A new incomplete exponential function is utilized in the derivations. A MVU estimate of the p, d, f. of MGSDSK is obtained. 相似文献
624.
625.
Zhensheng Huang 《统计学通讯:模拟与计算》2013,42(10):2252-2263
An empirical likelihood method was proposed by Owen and has been extended to many semiparametric and nonparametric models with a continuous response variable. However, there has been less attention focused on the generalized regression model. This article systematically studies two adjusted empirical-likelihood-based methods in the generalized varying-coefficient partially linear models. Based on the popular profile likelihood estimation procedure, the new adjusted empirical likelihood technology for the parameter is established and the resulting statistics are shown to be asymptotically standard chi-square distributed. Further, the adjusted empirical-likelihood-based confidence regions are established, and an efficient adjusted profile empirical-likelihood-based confidence intervals/regions for any components of the parameter, which are of primary interest, is also constructed. Their asymptotic properties are also derived. Some numerical studies are carried out to illustrate the performance of the proposed inference procedures. 相似文献
626.
Chunfeng Huang 《统计学通讯:理论与方法》2013,42(6):1101-1107
Regular smoothing splines are known to have a type of boundary bias problem that can reduce their estimation efficiency. In this paper, a boundary corrected smoothing spline with general order is designed in a way that the risk will decay at an optimal rate. An O(n) algorithm is also developed to compute the resultant estimator efficiently. 相似文献
627.
The technique of semifolding is used to develop the 2 n?p designs. Based on the initial analysis, some factors may be more important than others. In other words, the results from analyzing the original experiment may suggest a specific set of effects to be de-aliased. On the other hand, some previously acquired information might be available for specific factors. In these cases, one may desire to isolate the main effects of these factors and each of their two-factor interactions in the experiments. Four rules that are presented in this article can systematically isolate effects of potential interest, which should serve well for researchers in all disciplines. The combined design, by semifolding, provides estimates of the interactions that involve specific factors so that the alias chains of the two-factor interactions can be broken. 相似文献
628.
黄玉顺 《四川大学学报(哲学社会科学版)》2023,(1):40-49
贡斯当关于古代人的自由与现代人的自由的区分,逻辑地蕴含着作为上位概念的普遍“自由”概念,其内涵是:个人的意志行为在正义的社会规范内不受他人干预。按照这个普遍概念,孔子具有自己的自由观念。这种观念不是境界论的自由观,而是人性论的自由观。“个人的意志行为不受他人干预”是这种自由观的主体性维度,即个体主体具有天然的自由意志;“正义的社会规范”(礼)是这种自由观的规范性维度,即它是以孔子的正义论为基础的。这就是说,自由的规范条件来自两条正义原则,即源于博爱精神(仁)的正当性原则和适应于特定时代基本生活方式的适宜性原则(义)。因此,孔子的自由观念具有两个层面:遵守规范是保守性的自由,而重建规范是建设性的自由。 相似文献
629.
为揭示灾害现场亲历者如何在媒介场域通过“影像文本”将“远处的灾难”的“感知物质空间”转化为大众切身体验的“共通意义空间”,探寻中介化过程中媒介叙事手法的基本机制及其价值转向,本文聚焦于重庆山火现场及土耳其地震亲历者发布的短视频在网络社交媒体“出圈”现象。灾害亲历者以第一人称视角拍摄的短视频通过内聚焦叙事与围观者跨越时空距离进行多维度的信息、情感、价值沟通,在中介化连接与扩散过程中增强“远处的灾难”的可感知度,并寻求社会性协助与支持,在媒介的纪念仪式中实现集体记忆认同的动态协商和反思性重构,由此有助于理解普罗大众“自传记忆”零碎的经验性文本自主传播进入社会公众视野,与专业媒体的职业创作共同构建“拟像共同体”的价值与意义。 相似文献
630.
This article introduces a method of nonparametric bivariate density estimation based on a bivariate sample level crossing function, which leads to the construction of a bivariate level crossing empirical distribution function (BLCEDF). An efficiency function for this BLCEDF relative to the classical empirical distribution function (EDF), is derived. The BLCEDF gives more efficient estimates than the EDF in the tails of any underlying continuous distribution, for both small and large sample sizes. On the basis of BLCEDF we define a bivariate level crossing kernel density estimator (BLCKDE) and study its properties. We apply the BLCEDF and BLCKDE for various distributions and provide results of simulations that confirm the theoretical properties. A real-world example is given. 相似文献