发挥高等学校在构建终身教育体系中的作用

随着科学技术的快速发展,现代远程教育已广泛应用于我国高等教育和其他领域。为了有效地发挥现代远程教育和普通高等学校优势与教育资源,必须在学习与借鉴国外发达国家或地区发展终身教育体系成功经验的基础上,探讨构建符合我国运行机制的终身教育体系。     

Orientation relationship in finite dimensional space

In the present article, we discuss the regression of a point on the surface of a unit sphere in d dimensions given a point on the surface of a unit sphere in p dimensions, where p may not be equal to d. Point projection is added to the rotation and linear transformation for regression link function. The identifiability of the model is proved. Then, parameter estimation in this set up is discussed. Simulation studies and data analyses are done to illustrate the model.     

Probability Generating Function Based Jeffrey's Divergence for Statistical Inference

Statistical inference procedures based on transforms such as characteristic function and probability generating function have been examined by many researchers because they are much simpler than probability density functions. Here, a probability generating function based Jeffrey's divergence measure is proposed for parameter estimation and goodness-of-fit test. Being a member of the M-estimators, the proposed estimator is consistent. Also, the proposed goodness-of-fit test has good statistical power. The proposed divergence measure shows improved performance over existing probability generating function based measures. Real data examples are given to illustrate the proposed parameter estimation method and goodness-of-fit test.     

Diagnostics of multiple group influential observations for logistic regression models

In this paper, two new multiple influential observation detection methods, GCD.GSPR and mCD*, are introduced for logistic regression. The proposed diagnostic measures are compared with the generalized difference in fits (GDFFITS) and the generalized squared difference in beta (GSDFBETA), which are multiple influential diagnostics. The simulation study is conducted with one, two and five independent variable logistic regression models. The performance of the diagnostic measures is examined for a single contaminated independent variable for each model and in the case where all the independent variables are contaminated with certain contamination rates and intensity. In addition, the performance of the diagnostic measures is compared in terms of the correct identification rate and swamping rate via a frequently referred to data set in the literature.     

居住分异与社会距离

通过对一个新建社区的形成过程和居住现状的考察,分析了国内"居住分异"的社会分化现象。通过数据分析发现,居住分异以后,群体分化程度被强化了,它使居民之间的社会距离扩大、疏离感增强。这种状况不利于社会团结与和谐社会的建设。我国正处在城市化高速发展的进程中,如果没有明确的政策干预,任由房地产市场按照这样的情况发展下去,居住分异与社会距离问题会变得更加严重。     

Schematic saturated orthogonal arrays obtained by using the contractive replacement method

This paper presents a general method of constructing schematic saturated orthogonal arrays of strength two. We consider a class of mixed saturated orthogonal arrays produced from saturated symmetric orthogonal arrays by using the contractive replacement method, study the Hamming distances of the rows, construct their association schemes, and prove that they are schematic. Some examples are given to illustrate this construction method.     

Thinking through tragedy: critical distance and the law of genre

Abstract

This article focuses on two problems associated with tragedy. One ancient: what is it that draws us to the dramatic presentation of events of terrible suffering and loss? And one modern: namely, that while tragedies are still performed and appreciated, little new tragedy is being written. It will be argued in relation to the second problem that the vitality of tragedy as a dramatic form requires a less rigid approach to what might be considered tragic. And in relation to the first problem it will be argued that this more expansive conception of tragedy will allow an understanding of the ‘pay-off’ of tragedy in a way that draws both on the tradition that focuses on tragedy as cathartic therapeutic, and on the tradition that sees it as a thought laboratory that allows ethical dilemmas to be posed and explored from different perspectives. This argument constitutes a two-fold dialectical synthesis (emotional and intellectual approaches to tragedy on the one hand and the technical and popular use of the word ‘tragedy’ on the other) and the effect of this is to facilitate an understanding of tragedy as establishing a ‘critical distance’ that sets the scene for the possibility of thinking.     

New goodness of fit tests for the Cauchy distribution

Some goodness-of-fit procedures for the Cauchy distribution are presented. The power comparisons indicate that the new tests possess good performances among the competitors, especially against symmetric alternatives. A financial data set is analyzed for illustration.