信息化：新农村建设之路

摘　　要:社会主义新农村建设是科学发展观的本质要求。本文以2006年中共中央一号文件和科学发展观为指导,研究农村信息化建设与发展问题。本文认为,信息鸿沟是我国城乡差距逐步拉大的重要原因;农村信息化是落实科学发展观,统筹城乡经济社会发展和建设社会主义新农村之路。     

The two-sample -test with a known ratio of variances

We consider the two-sample t-test where error variances are unknown but with known relationships between them. This situation arises, for example, when two measuring instruments average different number of replicates to report the response. In particular we compare our procedure with the usual Satterthwaite approximation in the two sample t-test with variances unequal. Our procedure uses the knowledge of a known ratio of variances while the Satterthwaite approximation assumes only that the two variances are unequal. Simulations show that our procedure has both better size and better power than the Satterthwaite approximation. Finally, we consider an extension of our results to the General Linear Model.     

Estimating the Lyapunov exponent from chaotic time series with dynamic noise

In this paper, we propose an estimator of the Lyapunov exponent of the skeleton for chaotic time series with dynamic noise and prove the consistency of the estimator under some assumptions.     

提高灰色GM(1,1)模型精度的微粒群方法

改变背景值插值系数和边值是提高灰色GM(1,1)模型精度的途径之一。对于满足灰色GM(1,1)建模条件的序列,利用微粒群算法,给出了通过优化背景值插值系数和边值提高灰色GM(1,1)精度的新方法。给出了计算实例。计算表明,应用此方法可以提高灰色GM(1,1)模型的精度。     

教育知识与圣俗二分：从涂尔干到伯恩斯坦

“知识是一种社会建构”命题是涂尔干研究人类总体知识的落脚点,也是伯恩斯坦理解教育知识的社会性质的起点。本文试图重新理解涂尔干这一重要却不断被误解的命题,从“圣俗二分假想”入手,还原涂尔干知识社会学背后的问题意识,并呈现伯恩斯坦对圣俗二分的思考。研究发现,伯恩斯坦一方面继承和推进了涂尔干对知识及其社会基础的思考,从双重社会性假设出发阐释了教育知识的分类原则,另一方面也阐明了圣俗二分所蕴含的教育解放的可能性。     

邵雍“击壤体”的体式特征及其诗坛反响

“击壤体”及其诗派是客观历史存在,但“击壤体”并非在南宋末年才形成。作为重要的理学诗之诗歌范型,“击壤体”具有“达理”“闲适”“切理”等诗歌特征,其题材、内容及主题等非常丰富。“击壤体”诗作表达方式有多种构型,其诗歌形态亦有不受韵律、句式所限等属性特征。宋人在学习、模仿“击壤体”的重心及其取向上,表现出一定的倾向性。由此,“击壤体”在中国哲理诗发展史上具备了重要的诗歌范式价值和文学史地位。     

Ai Weiwei’s Fairytale: a unique social engagement

Abstract

Art as a social engagement in the West can be dated back to the history of avant-garde art starting from the end of nineteenth century. Rooted in his own cultural background, Chinese artist Ai Weiwei’s socially engaged art project “Fairytale is more complex than the avant-garde strategy. The work Fairytale established a structure – “1=1,001”. That means on the one hand, the participants can be easily regarded everywhere in Kassel as 1,001 mobile works of art. All of them contribute to an entire work. In other words, the 1,001 people consist of one work. On the other hand, everyone is dealing with their personal issues independent of art. In this sense, the entire work can be divided into 1,001 personal experiences. This structure is based on three principles of Chinese philosophy Taoism – the duality between Yin and Yang, the dynamism between Yin and Yang, and the concept of “uselessness”. Positioning Fairytale within both Western theoretical as well as Chinese philosophical contexts, this essay is to analyze how Chinese philosophy shaped Ai’s strategy of social engagement and his cultural identity – Chineseness.     

A GQL estimation approach for analysing non-stationary over-dispersed BINAR(1) time series

This paper proposes a generalized quasi-likelihood (GQL) function for estimating the vector of regression and over-dispersion effects for the respective series in the bivariate integer-valued autoregressive process of order 1 (BINAR(1)) with Negative Binomial (NB) marginals. The auto-covariance function in the proposed GQL is computed using some ‘robust’ working structures. As for the BINAR(1) process, the inter-relation between the series is induced mainly by the correlated NB innovations that are subject to different levels of over-dispersion. The performance of the GQL approach is tested via some Monte-Carlo simulations under different combination of over-dispersion together with low and high serial- and cross-correlation parameters. The model is also applied to analyse a real-life series of day and night accidents in Mauritius.     

Testing of homogeneity of variance and autocorrelation coefficients of nonlinear mixed models with AR(1) errors based on M-estimation

Homogeneity of between-individual variance and autocorrelation coefficients is one of assumptions in the study of longitudinal data. However, the assumption could be challenging due to the complexity of the dataset. In the paper we propose and analyze nonlinear mixed models with AR(1) errors for longitudinal data, intend to introduce Huber's function in the log-likelihood function and get robust estimation, which may help to reduce the influence of outliers, by Fisher scoring method. Testing of homogeneity of variance among individuals and autocorrelation coefficients on the basis of Huber's M-estimation is studied later in the paper. Simulation studies are carried to assess performance of score test we proposed. Results obtained from plasma concentrations data are reported as an illustrative example.     

Sparse canonical correlation analysis between an alcohol biomarker and self-reported alcohol consumption

In investigating the correlation between an alcohol biomarker and self-report, we developed a method to estimate the canonical correlation between two high-dimensional random vectors with a small sample size. In reviewing the relevant literature, we found that our method is somewhat similar to an existing method, but that the existing method has been criticized as lacking theoretical grounding in comparison with an alternative approach. We provide theoretical and empirical grounding for our method, and we customize it for our application to produce a novel method, which selects linear combinations that are step functions with a sparse number of steps.