Bayesian approach to estimation of intraclass correlation using reference prior

For the balanced variance component model when the intraclass correlation coefficient is of interest, Bayesian analysis is often appropriate. Berger and Bernardo’s (1992a) grouped ordering reference prior approach is used to analyze this model. The reference priors are developed and compared for the posterior inference with real and simulated data. We examine whether the reference priors satisfy the probability-matching criterion. Further, the reference prior is shown to be good in the sense of correct frequentist coverage probability of the posterior quantile.     

素质教育中的资料信息工作刍议

图书资料工作的质量和水平直接反映一个高等院校的办学质量和水平。在强调“素质教育”的时候,民族高等院校的图书资料工作也同样有一个如何调整自己的思路,开创新的工作局面的问题,从而既要为教学、科研服务,又要为校园文化建设开拓信息源,提供文化支持和信息服务的任务。     

Noninformative priors for the between-group variance in the unbalanced one-way random effects model with heterogeneous error variances

For the unbalanced one-way random effects model with heterogeneous error variances, we propose the non-informative priors for the between-group variance and develop the first- and second-order matching priors. It turns out that the second-order matching priors do not exist and the reference prior and Jeffreys prior do not satisfy a first-order matching criterion. We also show that the first-order matching prior meets the frequentist target coverage probabilities much better than the Jeffreys prior and reference prior through simulation study, and the Bayesian credible intervals based on the matching prior and reference prior give shorter intervals than the existing confidence intervals by examples.     

高校体育图书资料的管理与利用

高校体育图书资料是高校图书资料情报系统的有机组成部分,科学管理与利用体育图书资料工作是提高高校体育教学科研的有效保障。     

Observational sketching as method

This paper explores the potential of observational sketching as a social science research tool, informed by our own recent experiments with observational sketching techniques and approaches. We first outline the historical roots of academic sketching and note a recent resurgence of interest in sketching in certain disciplines. We then introduce our own explorations in sketching as method, based on a year-long collaboration between an observational artist and a group of qualitative researchers with interests in creative methods. The paper outlines some of the lessons we learnt from our partnership, focusing on three themes: (i) ‘sketchiness’; (ii) ‘concentrated seeing’ and (iii) sketching as interaction. We conclude that observational sketching generates a refreshingly different form of visual data which has considerable potential to be used as a complement to other methods, including as a participatory method and as a useful tool for thinking.     

Objective Bayesian inference for the ratio of the scale parameters of two Weibull distributions

The Weibull distribution is widely used due to its versatility and relative simplicity. In our paper, the non informative priors for the ratio of the scale parameters of two Weibull models are provided. The asymptotic matching of coverage probabilities of Bayesian credible intervals is considered, with the corresponding frequentist coverage probabilities. We developed the various priors for the ratio of two scale parameters using the following matching criteria: quantile matching, matching of distribution function, highest posterior density matching, and inversion of test statistics. One particular prior, which meets all the matching criteria, is found. Next, we derive the reference priors for groups of ordering. We see that all the reference priors satisfy a first-order matching criterion and that the one-at-a-time reference prior is a second-order matching prior. A simulation study is performed and an example given.     

高等职业院校机械类专业《机械制图》课堂教学的实践与探讨

本文分析探讨了高职院校机械类专业,《机械制图》课程目前课堂教学的现状,如何提高制图教学质量及实际应用能力的培养,结合多年一线教学的探索与实践经验,寻求了一条把课堂教学与基本技能训练很好地结合起来的方法一项目教学法,此方法把技能层次项目／模块化,强化学生识图能力的培养和基本技能的训练,注重学生实际动手能力的培养。项目教学在《机械制图》课堂教学实践经验证明对高职生进行此方法的教学是切实可行的。     

灞河史诗与顿河史诗的本土化特色——陈忠实与肖洛霍夫之比较研究

陈忠实与肖洛霍夫的生活时代、民族文化心理和地域人文环境有异有同。＂史诗＂型巨著《白鹿原》与《静静的顿河》以及＂史诗＂型巨著之外的小说创作多至本土化特征。陈忠实小说创作与肖洛霍夫小说艺术之间有血肉联系,二者之间联系的形成主要缘由是两人都一样生活在人民大众之中,都一样生活在社会主义国度之中。     

发达国家农民现代化模式的借鉴

美国、法国、日本、韩国等国家农民现代化形成了各具特色的发展模式。借鉴发达国家的先进经验,为我所用,成为促进农民从传统到现代转变,实现中国现代化的有效路径。