我国商业银行客户忠诚度研究

随着银行业竞争的日益激烈,提高客户忠诚度已经成为决定银行盈利能力的关键。本文通过分析影响我国银行客户忠诚度的因素,建立了客户忠诚度及其影响因素之间的结构方程模型,并采用PLS方法对模型的参数进行估计。在此基础上,基于某商业银行的实际调查数据给出了一个算例,对计算的结果进行了分析,并提出了相应的对策建议。     

模棱两可的民间——质疑陈思和的"民间"理论及其运用

“民间”是一个极其复杂、充满内在矛盾的概念 ,本文所要探讨的是 ,在陈思和的“民间”理论中 ,民间的客体世界和主体世界能否统一 ?“民间”能否以独立于“庙堂”、“广场”之外的形态存在于 2 0世纪文学史之中 ?自由自在是否是民间最基本的审美风格 ,民间的自由自在是否任何文明进步都无法涵盖 ?     

重庆朝天门广场赋的文化解读

矗立于重庆大门的文物珍品《朝天门广场赋》孕含丰富文化内涵。载体为辞赋,具铺张适度,张弛有致;骈散间杂,善于用隅;引典精当,推陈出新;抒情状物,自然天成等特色。实体凸现巴渝文化的多维性,涵盖古城的传统文化、山城的近代文化、抗战的陪都文化、革命的红岩文化以及新重庆、大重庆的都市文化。     

偶像的黄昏再看网络“犀利哥”

“犀利哥”是去年网络中红极一时的草根偶像，通过对该偶像产生机制的剖析，回头审视这个被制造的网络偶像，流行文化中偶像制造和偶像幻灭的快餐机制值得我们思索，传播过程中“犀利哥”本体的缺位体现了娱乐精神下某些人文关怀的散失。揭示了一些网络活动的参与者走向没落境地。     

The beta distribution as a latent response model for ordinal data (I): Estimation of location and dispersion parameters

Ordinal data are often modeled using a continuous latent response distribution, which is partially observed through windows of adjacent intervals defined by cutpoints. In this paper we propose the beta distribution as a model for the latent response. The beta distribution has several advantages over the other common distributions used, e.g. , normal and logistic. In particular, it enables separate modeling of location and dispersion effects which is essential in the Taguchi method of robust design. First, we study the problem of estimating the location and dispersion parameters of a single beta distribution (representing a single treatment) from ordinal data assuming known equispaced cutpoints. Two methods of estimation are compared: the maximum likelihood method and the method of moments. Two methods of treating the data are considered: in raw discrete form and in smoothed continuousized form. A large scale simulation study is carried out to compare the different methods. The mean square errors of the estimates are obtained under a variety of parameter configurations. Comparisons are made based on the ratios of the mean square errors (called the relative efficiencies). No method is universally the best, but the maximum likelihood method using continuousized data is found to perform generally well, especially for estimating the dispersion parameter. This method is also computationally much faster than the other methods and does not experience convergence difficulties in case of sparse or empty cells. Next, the problem of estimating unknown cutpoints is addressed. Here the multiple treatments setup is considered since in an actual application, cutpoints are common to all treatments, and must be estimated from all the data. A two-step iterative algorithm is proposed for estimating the location and dispersion parameters of the treatments, and the cutpoints. The proposed beta model and McCullagh's (1980) proportional odds model are compared by fitting them to two real data sets.     

Orthogonal decomposition of point-symmetry for multiway tables

For multiway contingency tables, Wall and Lienert (Biom. J. 18:259–264, 1976) considered the point-symmetry model. For square contingency tables, Tomizawa (Biom. J. 27:895–905, 1985) gave a theorem that the point-symmetry model holds if and only if both the quasi point-symmetry and the marginal point-symmetry models hold. This paper proposes some quasi point-symmetry models and marginal point-symmetry models for multiway tables, and extends Tomizawa’s (Biom. J. 27:895–905, 1985) theorem into multiway tables. We also show that for multiway tables the likelihood ratio statistic for testing goodness of fit of the point-symmetry model is asymptotically equivalent to the sum of those for testing the quasi point-symmetry model with some order and the marginal point-symmetry model with the corresponding order. An example is given.     

主成分估计的应用探讨

本文首次把主成分估计的方法应用于动物性状的多元线性回归模型中复共性线之克服，结果表明由此法所获得的回归参数的估计不但在数值上较最小二乘估计合理，而且还在一定意义上使得被共线性扭曲了的变量间的关系得到恢复，从而提高了模型的预测精度。     

江苏特色的城市广场宜人性特征探索

文章针对近年来中国城市广场建设中呈现出的较为严重的同质化倾向，通过对江苏数十个城市其广场的深入调研，以及对江苏自然资源和人文历史的深层挖掘，探寻其与江苏城市空间格局间所存在的内在联系，意在探讨江苏省在城市广场发展中形成的一些具有江苏特色的宜人性特征，为当今的城市建设提供参考和依据。     

《吉檀迦利》神的审美意象与《圣经》上帝的关系

从文学发生学的视角考察泰戈尔《吉檀迦利》诗集中的“脚凳”、“座位”、“杯”、“长袍”、“主”、“父”、“情人”等神的意象与《圣经》中上帝意象的关系,可见中外学术界长期以来认为泰戈尔的宗教思想和神的观念未受基督教影响的观点有失偏颇。     

Quasi local odds symmetry model for square contingency table with ordinal categories

This paper proposes a new model for square contingency tables. The proposed model tests the equality of local odds ratios between the one side of the main diagonal and corresponding other side and it represents the non-symmetric structure of the square contingency table. The proposed model is compared with twenty-five models introduced for analysing the square contingency tables for both symmetric and non-symmetric structures. The results show that the proposed model provides best fit performance than other existing models for square contingency tables.