ASSESSING CONGRUENCEAMONG DISTANCE MATRICES: SINGLE-MALT SCOTCH WHISKIES REVISITED

A test of congruence among distance matrices is described. It tests the hypothesis that several matrices, containing different types of variables about the same objects, are congruent with one another, so they can be used jointly in statistical analysis. Raw data tables are turned into similarity or distance matrices prior to testing; they can then be compared to data that naturally come in the form of distance matrices. The proposed test can be seen as a generalization of the Mantel test of matrix correspondence to any number of distance matrices. This paper shows that the new test has the correct rate of Type I error and good power. Power increases as the number of objects and the number of congruent data matrices increase; power is higher when the total number of matrices in the study is smaller. To illustrate the method, the proposed test is used to test the hypothesis that matrices representing different types of organoleptic variables (colour, nose, body, palate and finish) in single‐malt Scotch whiskies are congruent.     

统计执法的博弈分析

针对目前中国统计数据失真相当严重并引起社会各界普遍关注的现象，运用博弈论作为分析工具，引入重复博弈研究了统计执法中数据报方与查方的利益冲突关系，从统计执法的角度揭示了统计数据失真的主要原因，并提出了相应的五项对策。     

论重庆弱势群体的救助方略

在今天社会大变革、政府大转型之时,对弱势群体给予特殊的就业援助,对稳定社会具有重要的现实意义。为此,详实地分析了重庆市弱势群体的类型,以及市政府采取的及时有效的救援措施,并提出了一些相应对策。     

江苏省苏北新农村建设着力点探讨

江苏省苏北的新农村建设是一个惠及1 730多万农民的系统工程。建设苏北新农村关键是要把握六个着力点：促进农民增收,不断提高农民的生活水平;加大对苏北的扶贫开发力度,改善基本生产生活条件;加快农村经济结构调整,抓产业化发展,大力发展现代农业;加快苏北农村的基础设施建设;深入实施农村千万劳动力培训工程,用先进文化塑造新型农民,提高农民在新农村建设中的主体性和积极性;重视苏北农村的和谐社会建设。只有这样,才能真正推动苏北新农村建设的步伐,切实把握住确保江苏“两个率先目标”顺利实现的问题关键。     

Modelling heterogeneous space–time occurrences of earthquakes and its residual analysis

Summary. Earthquake intensities are modelled as a function of previous activity whose specific form is based on established empirical laws in seismology, but whose parameter values can vary from place to place. This model is used for characterizing regional features of seismic activities in and around Japan, and also for exploring regions where the actual seismicity rate systematically deviates from that of the modelled rate.     

高校师德建设的思考

师德建设事关高校办学方向和人才培养质量。在新时期客观分析师德建设状况,加强和改进师德建设是全面贯彻党的教育方针的重要保证,是培养社会主义事业建设者和接班人的必然要求。     

“与贸易有关的投资措施”经济学分析

通过文献梳理发现,作为有益于东道国发展的政策,与贸易有关的投资措施对东道国经济发展的作用因不同国家和不同市场条件而异.东道国特别是发展中国家应该高度重视与贸易有关的投资措施研究,并采用相应的外资政策.     

确保农民稳定增收要有新视野

当前,提高农民收入必须从深化农村产业结构和各项制度改革、克服制约农民增收的内外部因素及采取各项配套措施等方面着手,使农民稳定增收落到实处。     

20世纪三四十年代宁夏水利建设述论

20世纪三四十年代 ,宁夏地方当局等推出一系列水利建设措施 ,这既意味着宁夏水利事业的近代化开始初露端倪 ,也促使宁夏平原农田引黄灌溉得以延续 ,并对宁夏地方经济的恢复、初兴与抗日战争等具有促进作用     

A theoretical basis for perturbation methods

In this paper we discuss a new theoretical basis for perturbation methods. In developing this new theoretical basis, we define the ideal measures of data utility and disclosure risk. Maximum data utility is achieved when the statistical characteristics of the perturbed data are the same as that of the original data. Disclosure risk is minimized if providing users with microdata access does not result in any additional information. We show that when the perturbed values of the confidential variables are generated as independent realizations from the distribution of the confidential variables conditioned on the non-confidential variables, they satisfy the data utility and disclosure risk requirements. We also discuss the relationship between the theoretical basis and some commonly used methods for generating perturbed values of confidential numerical variables.