On a new goodness‐of‐fit process for families of copulas

A goodness‐of‐fit procedure is proposed for parametric families of copulas. The new test statistics are functionals of an empirical process based on the theoretical and sample versions of Spearman's dependence function. Conditions under which this empirical process converges weakly are seen to hold for many families including the Gaussian, Frank, and generalized Farlie–Gumbel–Morgenstern systems of distributions, as well as the models with singular components described by Durante [Durante ( 2007 ) Comptes Rendus Mathématique. Académie des Sciences. Paris, 344, 195–198]. Thanks to a parametric bootstrap method that allows to compute valid P‐values, it is shown empirically that tests based on Cramér–von Mises distances keep their size under the null hypothesis. Simulations attesting the power of the newly proposed tests, comparisons with competing procedures and complete analyses of real hydrological and financial data sets are presented. The Canadian Journal of Statistics 37: 80‐101; 2009 © 2009 Statistical Society of Canada     

绿色奥运—悉尼2000奥运会场的建设

在争办奥运会的竞争中,悉尼以环境方面的优势取胜。2000年奥运会的会址选建在悉尼附近的家树湾,过去这里曾是一片沼泽丛林,先后作过采石场、垃圾堆放场等,1988年已建成一个二世纪公署和州体育馆,在此基础上,将建成奥林匹克公园,提出“绿色奥运”的口号,将奥运会场的建设与环境治理、环境保护相结合,这一举措,深受赞许。     

试谈北仑区外向型经济发展重点

文章强调了北仑区2000年外向型经济发展的重点，即招商引资工作、外贸出口工作和外经工作，并提出了推进这三方面工作的若干措施。     

Change detection in linear regression with time series errors

A new test for detecting a change in linear regression parameters assuming a general weakly dependent error structure is given. It extends earlier methods based on cumulative sums assuming independent errors. The novelty is in the new standardization method and in smoothing when the time series is dominated by high frequencies. Simulations show the excellent performance of the test. Examples are taken from environmental applications. The algorithm is easy to implement. Testing for multiple changes can be done by segmentation. The Canadian Journal of Statistics 38:65–79; 2010 © 2009 Statistical Society of Canada     

用Delphi实现基于小波变换的JPEG2000压缩

本文从Delphi的一般应用方法入手,给出了实现基于小波变换的JPEG2000压缩方法,详细的阐述小波变换的理论,介绍了实现过程中的技巧。     

网上交易管理系统开发与应用

本文分析了国内外电子商务系统应用现状后,利用ASP和SQL Server2000开发了一套基于Web的网上交易管理系统,采用了三层B/S结构。应用该系统可以帮助商家规范销售流程,提高营业额和管理水平。     

Efficient estimation for the proportional hazards model with competing risks and current status data

The proportional hazards model is the most commonly used model in regression analysis of failure time data and has been discussed by many authors under various situations (Kalbfleisch & Prentice, 2002. The Statistical Analysis of Failure Time Data, Wiley, New York). This paper considers the fitting of the model to current status data when there exist competing risks, which often occurs in, for example, medical studies. The maximum likelihood estimates of the unknown parameters are derived and their consistency and convergence rate are established. Also we show that the estimates of regression coefficients are efficient and have asymptotically normal distributions. Simulation studies are conducted to assess the finite sample properties of the estimates and an illustrative example is provided. The Canadian Journal of Statistics © 2009 Statistical Society of Canada     

The limit distribution of a modified Shapiro–Wilk statistic for normality to Type II censored data

The Shapiro–Wilk statistic and modified statistics are widely used test statistics for normality. They are based on regression and correlation. The statistics for the complete data can be easily generalized to the censored data. In this paper, the distribution theory for the modified Shapiro–Wilk statistic is investigated when it is generalized to Type II right censored data. As a result, it is shown that the limit distribution of the statistic can be representable as the integral of a Brownian bridge. Also, the power comparison to the other procedure is performed.     

“2000后”学前教育专业大学生的合作倾向调查研究

合作是幼儿教师必须具备的职业素养。为了解我国当代学前教育专业大学生的合作倾向特征,本研究采用问卷调查与访谈法,对我国某高校学前教育专业的358名在校大学生展开调查。研究发现,首先,学前教育专业大学生整体上具有较为良好的合作倾向。其次,独生/非独生子女家庭、城市/乡镇生源地的学前教育专业大学生不存在合作倾向的显著性差异,而不同年级学前教育专业大学生之间存在合作倾向的显著性差异。第三,与物理与电子信息工程专业的大学生相比,学前教育专业大学生的合作倾向还存在一定的可提升空间。访谈研究表明,合作化、游戏化的教学形式有助于提升学前专业大学生的合作倾向。     

Intellectual spaces of practice and hope: power and culture in Portugal from the 1940s to the present

This paper examines configurations of power, authority and culture in Portugal in the twentieth century, and intellectual practices and spaces related to those configurations and in opposition to them. Portuguese national history and essentialized versions of Portugueseness are analysed in the work of such distinguished and influential intellectuals as António Sérgio, António José Saraiva and Eduardo Lourenço, in articulation with the role of high culture in the process of nation building throughout the nineteenth and twentieth centuries. One particular structure of attitude and reference, constructed in the latter half of the nineteenth century, is foregrounded with reference to the History of Portugal by Oliveira Martins, in the context of the persistent contradictions and conflicts between progressive and conservative, modernizing and traditional, ‘historical’, formations and projects. In such a context, moments of oppositional, alternative and independent projects are worth looking into. Two decisive moments of social change in the second half of the twentieth century were the 1940s, and the late 1960s and early 1970s. The paper pays attention to the politics of culture of Neo-Realismo in the 1940s and its consequences for high and popular culture over the following decades, especially in the years leading to the democratic revolution of 25 April 1974. A brief analysis of the 1990s is articulated to the study of the change-producing projects in the 1940s and 1960s as part of the cultural studies practice the paper argues for.