On the asymptotic distribution of a class of aligned rank order test statistics in randomized block designs

In the present investigation, the unconditional asymptotic distribution of a class of aligned rank order test statistics for randomized block designs is derived under the null hypothesis and for nearby alternatives, as the number of blocks tends to infinity. The proofs of these results are based on the asymptotic equivalence in quadratic mean between aligned observations and their ranks and thus are quite similar to the Hájek and SKidák (1967) approach.     

Graph Algorithms with Small Communication Costs

We study minimizing communication cost in parallel algorithm design, by minimizing the number of communication phases in coarse-grained parallel computers. There have been several recent papers dealing with parallel algorithms of small communication cost under different models. Most of these results are for computational geometry problems. For these problems it has been possible to decompose tasks into appropriate subproblems in a communication-efficient way. It appears to be somewhat more difficult to design parallel algorithms with small communication phases for graph theory problems. In this paper we focus on the design of deterministic algorithms with a small number of communication phases for the list ranking problem and the shortest path problem.     

Some simple nonparametric methods to test for perfect ranking in ranked set sampling

A lot of research on ranked set sampling (RSS) is based on the assumption that the ranking is perfect. Hence, it is necessary to develop some tests that could be used to validate this assumption of perfect ranking. In this paper, we introduce some simple nonparametric methods for this purpose. We specifically define three test statistics, _Nk,_Sk$N_k,S_k$ and _Ak$A_k$, based on one-cycle RSS, which are all associated with the ordered ranked set sample (ORSS). We then derive the exact null distributions and exact power functions of all these tests. Next, by using the sum or the maximum of each statistic over all cycles, we propose six test statistics for the case of multi-cycle RSS. We compare the performance of all these tests with that of the Kolmogorov–Smirnov test statistic proposed earlier by Stokes and Sager [1988. Characterization of a ranked-set sample with application to estimating distribution functions. J. Amer. Statist. Assoc. 83, 35–42] and display that all proposed test statistics are more powerful. Finally, we present an example to illustrate the test procedures discussed here.     

The Stability of Rankings Derived From Composite Indicators: Analysis of the “IL Sole 24 Ore” Quality of Life Report

The calculation of composite indicators and the derivation of respective rankings is a common method used to benchmark countries or regions. However, although the statistical robustness of these rankings is often criticised, they often still spark off heated political debate. Here, we assess the sensitivity of the province ranking published by the Italian economics newspaper “Il Sole 24 Ore”. For this purpose, various weighting, normalising and aggregation schemes were compared. Furthermore, to assess the accuracy of the underlying model, confidence intervals were calculated for the indicator values. The dynamic properties of the rankings were also analysed by evaluating the short- and long-term forecast properties of the rankings.     

中国城市服务经济指数·2010

＂中国城市服务经济指数＂编制目的是真正做到为各有关城市制定发展战略和相关政策提供依据,进而为中国服务经济的健康持续发展,提供智力支持。通过对2010年服务经济指数排名及简要分析,进一步阐明其指标体系及脸谱图,提出各城市和地区要结合自身的发展现状、利用本地区的优势,积极发展与自身条件相适应的服务经济。     

对国外大学排行评估发展特点的评述

由新闻媒体发布的“大学排行榜”是向公众传播高校信息的一种渠道。国外大学在 2 0世纪 80年代就已开展大学排行工作 ,分析国外大学排行榜发展特点对于改进我国大学评估工作 ,尽快与国际接轨 ,促使我国高校的健康、快速发展 ,使更多的高校进入世界一流行列具有重要作用     

优选论与汉语重叠词的声调变化

优选论是目前主流语言学理论,其新颖的理论视角和合理的分析方法为语言学的研究开辟了新的天地。本文运用优选论的理论原则和研究方法来分析和解释汉语重叠词的声调变化,使得该领域的研究更加科学合理。     

数控系统配套产品的质量模糊排序法

以数控系统关键配套产品质量排序为目标,引入模糊数学中的相关理论,建立产品质量排序模型,提出了一种较为实用的排序方法,并以实例证明其有效性。     

How to improve a team's position in the FIFA ranking? A simulation study

In this paper, we study the efficacy of the official ranking for international football teams compiled by FIFA, the body governing football competition around the globe. We present strategies for improving a team's position in the ranking. By combining several statistical techniques, we derive an objective function in a decision problem of optimal scheduling of future matches. The presented results display how a team's position can be improved. Along the way, we compare the official procedure to the famous Elo rating system. Although it originates from chess, it has been successfully tailored to ranking football teams as well.     

An Examination of Generalized-Conditioned Reinforcers in Stimulus Preference Assessments

Generalized-conditioned reinforcers (GCRs) are advocated for by practitioners when possible because of their ability to function as reinforcers across a wide array of motivative operations. In organizational behavior management 2 common GCRs are praise and money. Although many studies have demonstrated their usefulness, no prior study has compared relative preferences for GCRs (specifically money) and other potentially reinforcing items. A total of 24 direct care employees from a group home setting completed assessments for potential reinforcers. All participants in the current study identified items other than money as high-preference items, suggesting that some items may serve as alternatives to money in terms of preference.