Empirical Bayes vs. fully Bayes variable selection

For the problem of variable selection for the normal linear model, fixed penalty selection criteria such as AIC, _Cp${\mathrm{C}}_p$, BIC and RIC correspond to the posterior modes of a hierarchical Bayes model for various fixed hyperparameter settings. Adaptive selection criteria obtained by empirical Bayes estimation of the hyperparameters have been shown by George and Foster [2000. Calibration and Empirical Bayes variable selection. Biometrika 87(4), 731–747] to improve on these fixed selection criteria. In this paper, we study the potential of alternative fully Bayes methods, which instead margin out the hyperparameters with respect to prior distributions. Several structured prior formulations are considered for which fully Bayes selection and estimation methods are obtained. Analytical and simulation comparisons with empirical Bayes counterparts are studied.     

面向工业设计教学的图片管理系统的设计

随着信息化社会的来临,人们越来越多地接触到大量的多媒体信息数据,对这些信息数据的有效组织和检索成为当前人们研究的一大热点.提出了以图片的内在性质特征为内容,用语义描述和刻划图片的方法,较准确地描述图片,开发了面向工业设计教学的图片管理系统.不仅实现了对图像进行基于关键字的检索,还实现了基于本质内容等多种组合方式的查询.     

摒弃贡献率思维的产业生产率和总量生产率关联研究

本文参考OECD《生产率测算手册》,针对国内MFP研究存在的问题,提出研究者测算与政府机构测算的差别;对有形技术变化和无形技术变化的正确理解;要素服务量作为要素投入量的合理性;并对产业MFP和总量MFP相互关联的现实意义等进行了阐述。在此基础上,利用2005-2011年我国分地区分行业统计数据,效仿《生产率测算手册》提出的思路和方法,运用T?rnqvist MFP指数,从各地区大类行业开始,通过门类MFP、三次产业MFP,建立起与总量MFP之间的关联,并进行了简要的分析。     

一类新强化缓冲算子的构造及其应用

在灰色系统理论缓冲算子公理体系下,构造了一类新的强化缓冲算子,并研究了其一些特性及内在关系,有效地解决了冲击扰动数据序列在建模预测过程中出现的定量预测结果与定性分析结论不符的问题。实例结果表明该强化缓冲算子能显著提高数据预测模型的预测精度。     

Die „4-Level-Evaluation“: Messen der Ergebnis- und Prozessqualität im Coaching

“4-Level-Evaluation”: Measuring coaching success. Introducing a general and valid evaluation methodology, the “4-level-evaluation”, which will secure measuring coaching success and coaching process –without any limitation in terms of special tools or methods – and which every client will understand and appreciate. How to create a realistic evaluation bottom line, how to manage expectations to avoid perhaps disappointments, how to define possible coaching goals and how to eventually evaluate grades of achievement are explained and applied to a practical coaching case.     

Führungskulturen an der Universität: Feedbackinstrumente als Schlüssel zur Personalentwicklung

Management culture at German universities. Guided feedback as an instrument to develop leadership skills In future, universities will be fundamentally more exposed to national and international competition than they are today. The challenges for Germany’s universities arising from this are increased by the reform pressure towards a modernization of the governmental administration. On grounds of these new tasks and challenges, inner-organizational changes as well as the development of a leadership responsibility and further training of the employees’ social skills are necessary. Therefore up-to-date personnel development belongs to a university’s modernization program. At the Berlin University of Technology appraisals by subordinates are practiced in order to design a fair leadership culture. The crucial factor for this is the professor’s and administration manager’s identification with their leadership role. For a further process consultation the adoption of coaching is recommended.     

„Ich würde gern weitermachen“ Vom problemorientierten Coaching zur anlassfreien Beratungsarbeit über längere Zeit

?I would like to continue“. From the problem oriented coaching to an unintentional and open-ended counseling When coaching clients ask for more sessions even after the ?problem“ has been solved they might indicate a lack of reflective situations in their life. This creates an interesting dilemma for coaches to operate between the rules of the profession and the challenge to provide a peculiar space of conversation. Unintentional and open-ended, this reflective work may lead the client to surprising discoveries and unforeseen insights. Such a work confronts the guild of professionals with old-new questions of professional self-definition.     

全面提高教师素质实施人才强校战略

当前,我国改革开放和现代化建设进入了新的发展阶段,需要大批掌握现代科学知识、具有较高技术水平的各类人才。高校只有不断提高教学和科研水平,培养出高质量的人才,才能生存和发展下去。全面提高教师素质是加强学风建设、培养高质量人才、实施人才强校战略的关键。     

On Complete Convergence for Nonstationary ϕ-Mixing Random Variables

In this article, we study the complete convergence for non-stationary ?-mixing random variables, especially, we get the Baum-Katz-type Theorem and Hsu-Robbins-type Theorem for ?-mixing random variables. Our result generalizes the corresponding one of Shao (1988 Shao, Q.M. (1988). A moment inequality and its applications. Acta Mathematica Sinica 31(6):736–747. [Google Scholar]) and improves the corresponding one of Peligrad (1985a Peligrad, M. (1985a). Convergence rates of the strong law for stationary mixing sequences. Z. Wahrsch. verw. Gebiete. 70:307–314.[Crossref], [Web of Science ®] , [Google Scholar]) and Wang (1987 Wang, D.C. (1987). The complete convergence of the sums for the stationary sequence of ?-mixing random variables. J. Syst. Sci. Mathemat. Sci. 7(4):352–359. [Google Scholar]).