Generalized variable method inference for the location parameter of the general half-normal distribution

This paper considers the development of inferential techniques based on the generalized variable method (GV-Method) for the location parameter of the general half-normal distribution. We are interested in hypothesis testing of, and interval estimation for, the location parameter. Body fat data, urinary excretion rate data, and simulated data are used to illustrate the application and to demonstrate the advantages of the proposed GV-Method over the large-sample method and the Bayesian method.     

Partitioning Pearson's Chi-Squared Statistic for a Completely Ordered Three-Way Contingency Table

The paper presents a partition of the Pearson chi-squared statistic for triply ordered three-way contingency tables. The partition invokes orthogonal polynomials and identifies three-way association terms as well as each combination of two-way associations. This partition provides information about the structure of each variable by identifying important bivariate and trivariate associations in terms of location (linear), dispersion (quadratic) and higher order components. The significance of each term in the partition, and each association within each term can also be determined.
The paper compares the chi-squared partition with the log-linear models of Agresti (1994) for multi-way contingency tables with ordinal categories, by generalizing the model proposed by Haberman (1974).     

Classification with discrete and continuous variables via general mixed-data models

We study the problem of classifying an individual into one of several populations based on mixed nominal, continuous, and ordinal data. Specifically, we obtain a classification procedure as an extension to the so-called location linear discriminant function, by specifying a general mixed-data model for the joint distribution of the mixed discrete and continuous variables. We outline methods for estimating misclassification error rates. Results of simulations of the performance of proposed classification rules in various settings vis-à-vis a robust mixed-data discrimination method are reported as well. We give an example utilizing data on croup in children.     

Construction of more Flexible and Efficient P–rep Designs

Early generation variety trials are very important in plant and tree breeding programs. Typically many entries are tested, often with very few resources available. Unreplicated trials using control plots are popular and it is common to repeat the trials at a number of locations. An alternative is to use partially replicated (p–rep) designs, where a proportion of the test entries are replicated at each location. We extend a method for the generation of p–rep designs based on α–arrays to allow for a much broader class of designs to be constructed. Updating procedures for the average efficiency factor and its upper bound are developed for application to the computer generation of efficient p–rep designs.     

论国有经济的规模定位与战略调整

我国国有企业发展中所面临的种种困难与问题 ,不仅渊源于微观层面上国有企业产权关系、政企关系和经营机制等方面存在的天然缺陷 ,而且渊源于宏观层面上国有经济战略定位方面的不甚准确 ,尤其是规模定位上的不甚科学。因此 ,对转型期国有企业的改革不能仅仅局限于从微观层次上进行创新 ,还应从宏观层次上寻求突破口。根据我国社会主义市场经济发展的客观要求 ,从宏观上科学确定国有经济规模 ,并以此对国有经济进行战略性调整 ,已刻不容缓     

五四时期高校校报实践的当代启示

百年前，高校校报立足校园、辐射社会，产生了超出校园的传播力、影响力，其骄人业绩令今天的校报人景仰。今天，在人才、技术、物资、财力上相对匮乏的高校校报要从发展的困境中突围，可以向自身寻找动力源，在历史梳理中明确自身定位，凸显纸媒优势；规范文字使用，重视联系读者；提升媒介素养，强化实践功能。     

约束平面选址问题的蚂蚁算法

对带有区域限制的平面选址问题，给出一种基于人工蚂蚁优化思想的新的求解方法。经数值计算、验证和比较，得到了满意的效果。     

《内经》阴阳气位观初探

人体内气的功能与气在人体的分布部位之间存在规律性的、动态的联系,拟将这种理论称为"气位观"。从气位的关系来理解阴阳等基本概念并进一步阐释人体的生理、病理以及辨证治疗,可谓学习中医理论的重要门径。试总结为下述几点:气得其位为正常生理功能;气位失守为病理状态;恢复气位关系是治疗的目的;气行其位因时而动,治法亦因时而异;运气学说中的气位观。     

中国与墨西哥吸收美国直接投资区位优势比较研究

随着全球经济一体化进程的加快 ,中国作为吸收外国直接投资最多的发展中国家 ,也面临越来越多来自其他发展中国家的竞争压力。发展中国家中仅次于中国的第二大外国直接投资吸收国———墨西哥已经成为中国强有力的竞争对手。本文通过中国与墨西哥吸收美国直接投资区位优势的比较 ,分析了中国目前吸引美国直接投资的区位优势和劣势。这对中国利用美国直接投资 ,乃至利用外国直接投资的整体发展都具有重要建设意义。