Model Diagnostics for Remote Access Regression Servers

To protect public-use microdata, one approach is not to allow users access to the microdata. Instead, users submit analyses to a remote computer that reports back basic output from the fitted model, such as coefficients and standard errors. To be most useful, this remote server also should provide some way for users to check the fit of their models, without disclosing actual data values. This paper discusses regression diagnostics for remote servers. The proposal is to release synthetic diagnostics—i.e. simulated values of residuals and dependent and independent variables–constructed to mimic the relationships among the real-data residuals and independent variables. Using simulations, it is shown that the proposed synthetic diagnostics can reveal model inadequacies without substantial increase in the risk of disclosures. This approach also can be used to develop remote server diagnostics for generalized linear models.     

公共权益合理避让问题评议——以新闻传播的视角

公共权益避让是现代司法的重要理念，新闻传播活动中也涉及到公共权益的避让问题。公共权益的合理避让会促成社会诸权益的关系和谐，达到司法保护的平衡，进而实现社会民主与公正。在新闻传播活动中，公共权益的避让应注意遵循长远平衡、定时平衡和弱势保护的原则，以达到公共权益避让的良好效果。     

领导愿景与企业绩效关系研究

领导者的前瞻性愿景对组织发展具有重要作用。本文用访谈和问卷调查的方法对国有和民营企业的领导愿景与企业经营业绩之间的关系进行了探讨。结果发现,领导愿景及愿景共享等因素对企业绩效具有直接影响作用。研究者在此基础上提出了建立共同愿景以及培养和选拔企业愿景式领导的对策和建议。     

Nonresponse weighting adjustment using estimated response probability

To reduce nonresponse bias in sample surveys, a method of nonresponse weighting adjustment is often used which consists of multiplying the sampling weight of the respondent by the inverse of the estimated response probability. The authors examine the asymptotic properties of this estimator. They prove that it is generally more efficient than an estimator which uses the true response probability, provided that the parameters which govern this probability are estimated by maximum likelihood. The authors discuss variance estimation methods that account for the effect of using the estimated response probability; they compare their performances in a small simulation study. They also discuss extensions to the regression estimator.     

图式理论、学习策略与大学英语口语教学

本研究采用定量分析的方法,对84名天水师范学院非英语专业的学生的口语水平进行测试。根据图式理论,口语任务分为有关键词及句型提示类和无提示类,并对被试的学习策略使用情况做了调查,结果发现,口语任务有提示与无提示对学生的口语成绩有显著影响,这说明图式理论完全适用于大学英语口语教学。     

企业基本问题的法学与经济学分析

我国法学界对企业的定义和分类大多仍停留在新古典经济学的“黑箱”阶段,现代经济学关于企业的契约性理论为认识企业的概念和基本分类提供了新的视角。企业是生产要素所有者通过契约组成的提供产品或劳务、具有民事主体资格的社会组织,企业可以分为物质资本企业、人力合作企业和介于两者之间的企业,它们各有存在的合理性,也存在矛盾和弊端。     

黑格尔与经典作家论哲学体系的逻辑展开

我国改革开放以来,马克思主义哲学的体系创新逐渐成为马克思主义哲学的研究重点之一,作者认为重温黑格尔、马克思、恩格斯和列宁关于构建科学的哲学体系的思想对于推动这个问题的研究是有重要意义的。在作者看来,他们构建科学的哲学体系的主要原则是逻辑与历史一致,其具体表现是哲学范畴、原理从抽象到具体的过程。文章重点论述了列宁构建科学的哲学体系的思想。     

情境在古诗词教学中的作用

情境教学法在古诗词教学中有重要作用,通过拓宽教育空间、缩短心理距离、注重角色效应、领悟诗词谐趣等四种途径可以增强情境教学的效果。     

晋商文化及精神对现代工商管理的影响

晋商在明清发展到鼎盛时期,曾是在我国具有重要影响的商邦。他们在长期经营活动中形成的晋商文化以及节俭勤奋、明礼诚信、精于管理、勇于开拓的商业精神是其持续发展的精神动力,成为我国"儒商文化"继承和发展的典范,是我国商业文化史上宝贵的精神财富。弘扬晋商文化及精神,挖掘其内涵,坚持古为今用,将对新晋商的崛起和现代工商企业管理改革与创新产生极为深刻的影响。     

Goodness‐of‐fit methods for matched case‐control studies

The authors propose graphical and numerical methods for checking the adequacy of the logistic regression model for matched case‐control data. Their approach is based on the cumulative sum of residuals over the covariate or linear predictor. Under the assumed model, the cumulative residual process converges weakly to a centered Gaussian limit whose distribution can be approximated via computer simulation. The observed cumulative residual pattern can then be compared both visually and analytically to a certain number of simulated realizations of the approximate limiting process under the null hypothesis. The proposed techniques allow one to check the functional form of each covariate, the logistic link function as well as the overall model adequacy. The authors assess the performance of the proposed methods through simulation studies and illustrate them using data from a cardiovascular study.