组织文化演变驱动力的实证研究

组织文化是组织战略性竞争优势的重要组成部分。在前人研究的基础上,本文首先区分了组织文化变革两种类型——改革与演变,并以组织文化演变为研究对象,进一步提出驱动组织文化演变的三种驱动力——组织任务环境变化、组织内部环境变化和组织成员参与程度,通过结构方程模型就三种驱动力对组织文化演变的作用及三种驱动力之间的关系进行实证研究。研究结论表明,组织内部环境变化对组织文化演变起正向作用,组织任务环境变化对组织文化演变起负向作用,组织员工参与程度通过组织内部环境变化这一中介变量,对组织文化演变起正向作用。     

基于模糊理论的R&D员工创新绩效评价模型

针对员工绩效评价模型中存在的忽视基础条件、衡量绝对绩效、缺乏相对标准、过分关注短期绩效等问题,依据创新本身特征与R&D员工绩效的特点,设计了能够有效反映企业R&D员工努力程度与潜力水平的创新绩效评价指标体系。将创新绩效作为评价主体,构建了基于模糊理论的能够客观综合度量R&D员工创新绩效的评价模型。将模型应用于某大型制造企业300名R&D员工的样本中,综合评价出每一名员工的努力指数、潜力指数、优秀程度与不良程度,作为企业全面评价R&D员工绩效的基础数据。     

中国软件企业过程改进的“制度化”:以东软集团实施CMMI为例

通过对东软集团股份有限公司实施CMMI的实地调查和案例研究,探讨该公司实施CMMI提高软件过程能力的背景和绩效,揭示中国软件企业过程改进的"制度化"体系。研究结果表明,该公司引进CMMI模式改进软件过程,使软件生产已经成为"制度化的过程"以及一个习惯性遵循和使用规则的过程。CMMI为中国软件企业走向规范化、规模化、成熟化起到了重大的促进和导向作用。     

企业战略联盟风险防范体系的架构研究

在对企业战略联盟存在的风险及规避措施进行理论透析的基础上,给出了企业战略联盟伙伴选择机制的权值排序模型。提出了企业战略联盟的3种风险防范整合架构,并论述了三者之间的相关关系。最后通过实例对企业战略联盟伙伴选择机制的权值排序模型和风险防范整合体系进行了验证。     

Corrected proof of the result of 'A prediction error property of the Lasso estimator and its generalization' by Huang (2003)

The Lasso achieves variance reduction and variable selection by solving an ?₁‐regularized least squares problem. Huang (2003) claims that ‘there always exists an interval of regularization parameter values such that the corresponding mean squared prediction error for the Lasso estimator is smaller than for the ordinary least square estimator’. This result is correct. However, its proof in Huang (2003) is not. This paper presents a corrected proof of the claim, which exposes and uses some interesting fundamental properties of the Lasso.     

Smoothing spline Gaussian regression: more scalable computation via efficient approximation

Summary.  Smoothing splines via the penalized least squares method provide versatile and effective nonparametric models for regression with Gaussian responses. The computation of smoothing splines is generally of the order O ( n ³), n being the sample size, which severely limits its practical applicability. We study more scalable computation of smoothing spline regression via certain low dimensional approximations that are asymptotically as efficient. A simple algorithm is presented and the Bayes model that is associated with the approximations is derived, with the latter guiding the porting of Bayesian confidence intervals. The practical choice of the dimension of the approximating space is determined through simulation studies, and empirical comparisons of the approximations with the exact solution are presented. Also evaluated is a simple modification of the generalized cross-validation method for smoothing parameter selection, which to a large extent fixes the occasional undersmoothing problem that is suffered by generalized cross-validation.     

Proportional hazards model for competing risks data with missing cause of failure

We consider the semiparametric proportional hazards model for the cause-specific hazard function in analysis of competing risks data with missing cause of failure. The inverse probability weighted equation and augmented inverse probability weighted equation are proposed for estimating the regression parameters in the model, and their theoretical properties are established for inference. Simulation studies demonstrate that the augmented inverse probability weighted estimator is doubly robust and the proposed method is appropriate for practical use. The simulations also compare the proposed estimators with the multiple imputation estimator of Lu and Tsiatis (2001). The application of the proposed method is illustrated using data from a bone marrow transplant study.     

基于主成分分析的我国西部地区间产业结构转换能力评价

产业结构的演进和转换是经济发展的本质特征,也是促进经济持续稳定协调发展的关键。西部地区产业结构转换能力的地区差异十分明显,本文阐述了影响地区产业结构转换的一般因素,并通过主成分分析方法对影响西部地区产业结构转换的主要因素进行了分析,并对西部各地区产业结构转换能力、转换速度以及转换方向进行了分析评价。     

成见与良知

作为无限者的道,通过一个有限化以达确定化的过程完成其自我实现,这同时造成了作为"观念结果"的物,与作为"观物要求"的成心两种结果。成心观物,固不免有种种不牢靠的是非之论发生出来,但并不能根绝真实之是非的可能。即便全然为"假是非",其中亦必有是非的必然之理的真实表现;更何况,对于是非、善恶,良知可以获得一种确知,而是非的必然之理与良知之良,都被道的至善性所保证,这就使得要把一切是非之论一概无谓化的论说难有成立的余地。