采用一元辅助信息的多元二相抽样的比估计

一元抽样调查的理论已经发展相对成熟．但实际问题中往往涉及多个指标,一元理论不能满足需要．本文研究了多元二相抽样,并且在多元二相抽样中添加了一元辅助信息。定义了采用一元辅助信息的多元比估计,得到了采用一元辅助信息的多元二相抽样的比估汁量及其性质．并且证明了在满足一定条件时．采用一元辅助信息的多元二相抽样的比估计量优于多元简单随机抽样的简单估计量．     

现代维吾尔语位移类二价动词的配价研究

维吾尔语位移类二价动词都表示某个位移主体的位移．刻画了一个位移方向,因而位移类二价动词构成的事件结构中动词必定会涉及两个参与者。但由于动词在其“常量”上仍然存在细微的差别,因而位移类二价动词所支配的两个参与者在语言层面表现为不同的论元角色。     

赣语乐安(湖溪)话的完成体

赣语乐安湖溪话中表示动作完成的句中助词有哩和了两个。用哩一般只表示完成,表示谓词和其他谓语形式的词义所指处于事实的状态之下。用了除了表示动作完成的现实外,还表示说话者对所说内容的强调。     

Some imputation methods to compensate with non-response for estimation of population mean in two-occasion successive sampling

Abstract

Non-response is an unavoidable phenomenon in almost all sample survey, and if it is not dealt carefully at the very starting of the analysis, results may lead to significant biases in the survey estimates. Keeping these facts in mind and inspired by the work of Singh (2009 Singh, S. 2009. A new method of imputation in survey sampling. Statistics 43 (5):499–511. doi:10.1080/02331880802605114.[Taylor & Francis Online], [Web of Science ®] , [Google Scholar]), this article suggests some alternative efficient methods to deal with the missing data problems at the beginning of the analysis and proposes estimation procedures of the current population mean in two-occasion successive sampling. The properties of the resultant estimation procedures have been examined and supplemented with empirical studies. Results have been critically analyzed, and recommendations are made to the survey practitioners.     

Difficulties in the use of auxiliary variables in Markov chain Monte Carlo methods

Markov chain Monte Carlo (MCMC) methods are now widely used in a diverse range of application areas to tackle previously intractable problems. Difficult questions remain, however, in designing MCMC samplers for problems exhibiting severe multimodality where standard methods may exhibit prohibitively slow movement around the state space. Auxiliary variable methods, sometimes together with multigrid ideas, have been proposed as one possible way forward. Initial disappointing experiments have led to data-driven modifications of the methods. In this paper, these suggestions are investigated for lattice data such as is found in imaging and some spatial applications. The results suggest that adapting the auxiliary variables to the specific application is beneficial. However the form of adaptation needed and the extent of the resulting benefits are not always clear-cut.     

从语法构造和语用心理看动词形容词的重叠性

动词、形容词的重叠既与内部语法构造有关 ,又受外部语用心理的制约。语素多少、语素之间的结构关系和语素的搭配模式等影响着动词、形容词的重叠性。从心理感受出发 ,人们是否愿意接受动词、形容词所表示的动作行为、性质状态或所愿意接受程度的强弱是衡量动词、形容词重叠与否或重叠性强弱的重要条件     

区间值模糊线性规划问题及其求解方法

提出了一类区间值模糊线性规划问题,讨论了区间值模糊数的排序方法,在不同的排序准则下获得了相应的辅助模型,给出了求解问题的算法.     

藏语助动词yin的功能及其比较——关于《米拉日巴传》判断动词的思考

本文将《米拉日巴传》等藏语文献与现代藏语拉萨方言作比较 ,考察了藏语助动词 yin的功能及藏语判断动词的发展轨迹。     

动词Быть的用法小结

在现代俄语中,动词是一个非常积极的词汇,而且其用法比较多,很难全面掌握。本文从该动词作独立动词、系词、助动词及一些固定搭配等几个方面对其用法进行了阐述。