鲁迅与20世纪20、30年代的新加坡文坛

在世界文坛占有重要地位的鲁迅,在20世纪20年代的新马是寂寞的,并没有享有如在中国一样的声誉;30年代,特别是在鲁迅逝世后,新马华人都特别推崇鲁迅,可以说几乎把他当作精神导师.     

The number of records within a random interval of the current record value

LetX ₁,X ₂, … be a sequence of i.i.d. random variables with some continuous distribution functionF. LetX(n) be then-th record value associated with this sequence and μ _n ⁻ , μ _n ⁺ be the variables that count the number of record values belonging to the random intervals(f−(X(n)), X(n)), (X(n), f+(X(n))), wheref−, f+ are two continuous functions satisfyingf−(x)<x, f+(x)>x. Properties of μ _n ⁻ , μ _n ⁺ are studied in the present paper. Some statistical applications connected with these variables are also provided.     

Consistent deconvolution in density estimation

Suppose we have n observations from X = Y + Z, where Z is a noise component with known distribution, and Y has an unknown density f. When the characteristic function of Z is nonzero almost everywhere, we show that it is possible to construct a density estimate f_n such that for all f, Iim_n| |=0.     

基于需求分析的涉海类高校大学英语教学转型研究

大学英语课程正面临重大改革与转型。文章试从需求分析理论探讨在大学英语后续课程开设专门用途英语的必要性。通过结合实习环节,学习者的延时需求可转换为即时需求。这种新思路旨在从我国高等教育发展趋势的角度,重新建构大学英语课程体系,培养涉海型复合人才。     

Complete consistency for the estimator of nonparametric regression models based on extended negatively dependent errors

In this paper, we provide some exponential inequalities for extended negatively dependent (END) random variables. By using these exponential inequalities and the truncated method, we investigate the complete consistency for the estimator of nonparametric regression model based on END errors. As an application, the complete consistency for the nearest neighbour estimator is obtained.     

A multilevel model with autoregressive components for the analysis of tribal art prices

In this paper, we introduce a multilevel model specification with time-series components for the analysis of prices of artworks sold at auctions. Since auction data do not constitute a panel or a time series but are composed of repeated cross-sections, they require a specification with items at the first level nested in time-points. Our approach combines the flexibility of mixed effect models together with the predicting performance of time series as it allows to model the time dynamics directly. Model estimation is obtained by means of maximum likelihood through the expectation–maximization algorithm. The model is motivated by the analysis of the first database ethnic artworks sold in the most important auctions worldwide. The results show that the proposed specification improves considerably over classical proposals both in terms of fit and prediction.     

FPK法在集总参数系统随机温度研究中的应用

应用FPK法研究了集总参数系统在对流和辐射环境下温度随机变化的规律。设激励是均值为0的白噪声且系统参数为常量，在与环境对流换热时，系统随机温度的均值不变，方差与系统时间常数的平方根成反比；在与环境辐射换热时，系统随机温度一般不呈正态分布，其中均值，均方值还与系统确定性温度有关，由此可知，当存在随机激励时，用有热惯性的测温系统精确测定动态温度是不可能的。     

随机-无标度统一混合演化网络模型

根据实际网络的特点,提出了一个随机-无标度统一混合演化网络模型.通过引入一个调节参数p将随机演化网络与(Barabási-Albert)无标度网络统一起来.理论计算和计算机模拟表明,当调节参数p从1变化到0时,网络结构实现了从随机演化网络到BA无标度网络的连续过渡.     

关于岩石破碎的三角形效应研究

本文从分形几何学的角度研究了岩石的断裂规律，从理论上论述了岩石破碎的三角形效应，并给出了一般岩石破碎的数学模型．     

一种定量敏感性问题的随机化调查方法

在敏感性问题的随机化调查中,既有调查个体是否具有敏感属性的二值敏感性问题,即属性特征问题,又有调查特定人群中敏感指标量的“多少”问题,即定量特征敏感性问题.对于定量特征敏感性问题的调查,E ichhorn,H aryre于1983年提出了一种随机化调查方法,并给出了定量敏感问题指标量均值的一个无偏估计.本文提出一种定量特征敏感性问题的随机化调查方法,得到的结果表明,本文提出的方法优于E ichhorn,H aryre(1983)提出的方法.