Sampling design proportional to order statistic of auxiliary variable

The sampling designs dependent on sample moments of auxiliary variables are well known. Lahiri (Bull Int Stat Inst 33:133–140, 1951) considered a sampling design proportionate to a sample mean of an auxiliary variable. Sing and Srivastava (Biometrika 67(1):205–209, 1980) proposed the sampling design proportionate to a sample variance while Wywiał (J Indian Stat Assoc 37:73–87, 1999) a sampling design proportionate to a sample generalized variance of auxiliary variables. Some other sampling designs dependent on moments of an auxiliary variable were considered e.g. in Wywiał (Some contributions to multivariate methods in, survey sampling. Katowice University of Economics, Katowice, 2003a); Stat Transit 4(5):779–798, 2000) where accuracy of some sampling strategies were compared, too.These sampling designs cannot be useful in the case when there are some censored observations of the auxiliary variable. Moreover, they can be much too sensitive to outliers observations. In these cases the sampling design proportionate to the order statistic of an auxiliary variable can be more useful. That is why such an unequal probability sampling design is proposed here. Its particular cases as well as its conditional version are considered, too. The sampling scheme implementing this sampling design is proposed. The inclusion probabilities of the first and second orders were evaluated. The well known Horvitz–Thompson estimator is taken into account. A ratio estimator dependent on an order statistic is constructed. It is similar to the well known ratio estimator based on the population and sample means. Moreover, it is an unbiased estimator of the population mean when the sample is drawn according to the proposed sampling design dependent on the appropriate order statistic.     

诠释学与比较文学的发展

互动认知研究的空间是变动、开放、动态的空间。双向诠释即是首先了解对方,然后从对方的角度和视野来观察和进一步了解自己,使双方对自己和对方都有了新的认识。重视从“他者”反观自身的理论逐渐为广大理论界所接受。一些非汉学家的理论家开始以一种“非中心论”的心态来探讨西方和非西方文化,并以此为基础建构新的理论,这就从根本上动摇了西方中心论的基石。比较文学和比较文化研究迅速突破了封闭的西方文化体系,进入西方文化与非西方文化相互参照的范围。西方学术界原来互不相干的汉学研究、文学理论研究、比较文学研究正在迅速靠拢,并实现互补、互识、互证。     

御园自是湖光好，山色还须让静宜——浅析香山静宜园28景经营意向

香山静宜园是著名清代皇家园林,始建于乾隆朝,是清代皇家园林的重要代表,涵纳的造园意象非常丰富,具有极高的研究价值。系统地研究静宜园28景的构成要素和设计手法,总结出香山静宜园建筑设计和景观经营意向,有助于深入探索自然山水园的思想精髓,对当今的建筑环境以及景观设计都有重要的借鉴和指导意义。     

Bayesian locally optimal design of knockout tournaments

The elimination or knockout format is one of the most common designs for pairing competitors in tournaments and leagues. In each round of a knockout tournament, the losers are eliminated while the winners advance to the next round. Typically, the goal of such a design is to identify the overall best player. Using a common probability model for expressing relative player strengths, we develop an adaptive approach to pairing players each round in which the probability that the best player advances to the next round is maximized. We evaluate our method using simulated game outcomes under several data-generating mechanisms, and compare it to random pairings, to the standard knockout format, and to two variants of the standard format.     

莫泊桑短篇小说中的第一人称叙述

莫泊桑的短篇小说堪称一绝,在叙事上独具特色。与其他现实主义作家不同,莫泊桑喜欢采用第一人称叙述,他笔下的叙述者"我"并非都是全知全能,大部分叙述者权利有限。更为独特的是,他在这类作品中首创的叙述分层的手法,使得人物成一种对话关系。他对叙述者权利的限制使得作品意义留有空白。叙述语调的中立要求读者积极参与作品意义的建构,这极大增强了短篇小说的可读性,也使他的作品带有现代主义的气息。     

学习贯彻十六大精神,推进“两课”教育教学的创新

学习贯彻十六大精神,推进“两课”教育教学的创新@赵书爱$华北水利水电学院人文社科部!河南郑州450011     

商业网站的网络营销思维

随着电子商务的发展,网络营销的功效越发显著,其作用也越来越受到管理者的重视.但在目前,网站的落后状况已经成为阻碍网络营销发挥作用的一大因素.因此,网络营销思维在商业网站中的运用势在必行.     

二元序列优化的二种快速算法

基于二相编码雷达对大压缩比信号的要求,提出了一种比直接算法平均提高效率0.5P(P 为序列长度)的快速数字优化方法。作为这种快速算法的实际应用,还对 P=255的二相编码脉冲压缩信号进行了优化。     

对“两种置换”与改制成本的思考

国有企业改制的焦点集中于"两个置换"问题上,而它们之间存在着直接的依赖关系。从某种意义上来说,改制成本就是为确保新制度顺利推进而产生的社会交易费用。一方面,交易费用的存在与人力资源价值、人的本性、以及改制后企业经营管理能力有关,其支出有着重要的作用。另一方面,交易费用的存在会减少交易量,损害资产经济专门化和资源的利用,影响资源使用的边际等式和使用的密集度,且过高的交易费用会使许多潜在的交易难以转化为现实的交易,导致社会财富的净损失。因此,政府应该对其支出的流量和流向予以把握和控制,按照"支出合理,方式多样"的原则运作,推动"两种置换"的顺利完成。     

绿色设计中的材料选择

绿色设计首先要选择绿色材料，使用环境友好性的材料，以减少产品对环境的危害；尽量减少材料的种类和数量，不仅可以节约能源，还可以减少废物的排放量；还要使材料具有循环性，以延长产品的寿命，减少废物，使人和自然和谐发展。