SIMEX estimation for single-index model with covariate measurement error

AStA Advances in Statistical Analysis - In this paper, we consider the single-index measurement error model with mismeasured covariates in the nonparametric part. To solve the problem, we develop a...     

评普特南和塞尔关于意义理论的论争

本文围绕"意义是否在头脑之中"问题,对普特南的外在主义意义理论和塞尔的内在主义意义理论的论证与讨论进行比较分析,揭示它们的合理因素及其难以克服的困难,表明解决问题的出路在于打破内在主义与外在主义的僵硬分界,通过内在与外在的相互关系的把握探索其各自的合理因素有机互补的途径.     

试析黑格尔《精神现象学》中的实践理性

康德将理论理性和实践理性决然二分,而黑格尔则将这两种理性看作是同一个理性的不同发展阶段,他们两者关于理性的区别集中体现在对实践理性的不同界定上。黑格尔将实践理性分为三个阶段:快乐与必然性、心的规律和自大狂、德行和世界进程,他认为后两个阶段即是康德的实践理性,并从三个方面对其进行了批评。在黑格尔看来,理论理性和实践理性这两种理性,在理性的第三个阶段——自在自为地实在的个体性——中,并最终在社会和国家中实现了完全统一,使理性获得了其真实的客观现实性,从而过渡到精神这一意识的最高环节。文章即以黑格尔的《精神现象学》为主要文本依据探讨其实践理性学说。     

试论罗素逻辑原子的两种简单性

有关罗素逻辑原子的简单性问题一直以来都存在着争议,这主要是由于他在不同时期不同本文中一些相互冲突、十分含糊的说辞造成的。文章将立足罗素与逻辑原子主义相关的一手文献,将简单分为两类：绝对简单和相对简单,分别探讨这些争论的焦点所在,并为罗素那些看似矛盾的说法给出自己的解释,也即为逻辑分析的方法正名。     

Inference for the common mean of several Birnbaum–Saunders populations

The Birnbaum–Saunders distribution is a widely used distribution in reliability applications to model failure times. For several samples from possible different Birnbaum–Saunders distributions, if their means can be considered as the same, it is of importance to make inference for the common mean. This paper presents procedures for interval estimation and hypothesis testing for the common mean of several Birnbaum–Saunders populations. The proposed approaches are hybrids between the generalized inference method and the large sample theory. Some simulation results are conducted to present the performance of the proposed approaches. The simulation results indicate that our proposed approaches perform well. Finally, the proposed approaches are applied to analyze a real example on the fatigue life of 6061-T6 aluminum coupons for illustration.     

慈善概念的移植何以未完成:一个政策过程的分析

寻求法律移植与习俗的有机统一无疑是中国法律现代化最为重要的问题。由于缺乏微观政策过程的分析,对这一问题的探讨大多停留在宏观层面。本文从法律现代化和法律多元主义的理论视角出发,以《慈善法》中“慈善”概念的形成为例,探讨了法律移植与习俗如何通过立法体制影响法律的形成。研究发现,习俗通过回应性立法的制度安排以及立法者的双重身份被纳入到决策中。法律移植的慈善概念则通过法律专家与立法者的深度互动产生作用。然而,立法过程中提案与审议的分离以及政治官僚制的决策模式使得形式理性法律的建构面临双重消解。因此,促进立法体制的优化才能实现立法中形式理性与价值理性的有效融合。     

罗素感觉材料理论探析

为了应对怀疑论的挑战，1912—1927年间罗素发展出了逻辑构造理论这种独具特色的形而上学体系。要使物理对象的存在及对其的知识变得确实可靠，用来对其进行构造的要素一定是确定的。他坚定地站在英国古典经验论传统一边，认为只有直接能亲知的对象才是完全确定的，是一切知识的基础。罗素认可的构造元素有两个，即感觉材料和森斯比利亚(sensibilia)，他对这两类要素的独特界定构成了他感觉材料理论的具体内容。     

Variable Selection for Semiparametric Partially Linear Covariate-Adjusted Regression Models

In this article, the partially linear covariate-adjusted regression models are considered, and the penalized least-squares procedure is proposed to simultaneously select variables and estimate the parametric components. The rate of convergence and the asymptotic normality of the resulting estimators are established under some regularization conditions. With the proper choices of the penalty functions and tuning parameters, it is shown that the proposed procedure can be as efficient as the oracle estimators. Some Monte Carlo simulation studies and a real data application are carried out to assess the finite sample performances for the proposed method.     

Nonlinear regression models with general distortion measurement errors

This paper considers nonlinear regression models when neither the response variable nor the covariates can be directly observed, but are measured with both multiplicative and additive distortion measurement errors. We propose conditional variance and conditional mean calibration estimation methods for the unobserved variables, then a nonlinear least squares estimator is proposed. For the hypothesis testing of parameter, a restricted estimator under the null hypothesis and a test statistic are proposed. The asymptotic properties for the estimator and test statistic are established. Lastly, a residual-based empirical process test statistic marked by proper functions of the regressors is proposed for the model checking problem. We further suggest a bootstrap procedure to calculate critical values. Simulation studies demonstrate the performance of the proposed procedure and a real example is analysed to illustrate its practical usage.