网络空间语言互动变异的经济效能与损蚀

网络空间的交际用语是把双刃剑,多形态的语言带来了网络交际的便捷,但也为语言系统本身和思想情感交流带来诸多困扰。文章基于网络空间交际用语的基本形态,认为语言在网络空间交际互动中体现出多重经济效能,语言趋简是以较小的语言资源投入实现最佳的交互目的;语言趋快是为了减少交际的时间成本;语言趋新是为了获取交际关注与群体认同。因获取语言经济效能而对汉语系统、言语交际以及语言生态文明等带来了一定的损蚀。     

人类在景观发育中的作用

本文通过对人类影响景观发育的思想、行为、方法和影响结果的分析,在理论上论证了人类对景观发育影响的显著性,引申到按照人类对景观影响的结果--景观变化梯度过于剧烈的话,景观系统将走向崩溃,进而提出人类对景观发育控制理念构建人-地协调的景观系统.     

Some novel results on pairwise quasi-asymptotical independence with applications to risk theory

In this article we obtain some novel results on pairwise quasi-asymptotically independent (pQAI) random variables. Concretely speaking, let X₁, …, X_n be n real-valued pQAI random variables, and W₁, …, W_n be another n non negative and arbitrarily dependent random variables, but independent of X₁, …, X_n. Under some mild conditions, we prove that W₁X₁, …, W_nX_n are still pQAI as well. Our result is in a general setting whether the primary random variables X₁, …, X_n are heavy-tailed or not. Finally, a special case of above result is applied to risk theory for investigating the finite-time ruin probability for a discrete-time risk model with a wide type of dependence structure.     

A direct procedure for monitoring the coefficient of variation using a variable sample size scheme

A variable sample size (VSS) scheme directly monitoring the coefficient of variation (CV), instead of monitoring the transformed statistics, is proposed. Optimal chart parameters are computed based on two criteria: (i) minimizing the out-of-control ARL (ARL₁) and (ii) minimizing the out-of-control ASS (ASS₁). Then the performances are compared between these two criteria. The advantages of the proposed chart over the VSS chart based on the transformed statistics in the existing literature are: the former (i) provides an easier alternative as no transformation is involved and (ii) requires less number of observations to detect a shift when ASS₁ is minimized.     

A simulation study of the Bennett test and Miller test for coefficients of variation

In the article, properties of the Bennett test and Miller test are analyzed. Assuming that the sample size is the same for each sample and considering the null hypothesis that the coefficients of variation for k populations are equal against the hypothesis that k ? 1 coefficients of variation are the same but differ from the coefficient of variation for the kth population, the empirical significance level and the power of the test are studied. Moreover, the dependence of the test statistic and the power of the test on the ratio of coefficients of variation are considered. The analyses are performed on simulated data.     

Monitoring the coefficient of variation using a variable sample size and sampling interval control chart

This article proposes a CV chart by using the variable sample size and sampling interval (VSSI) feature to improve the performance of the basic CV chart, for detecting small and moderate shifts in the CV. The proposed VSSI CV chart is designed by allowing the sample size and the sampling interval to vary. The VSSI CV chart's statistical performance is measured by using the average time to signal (ATS) and expected average time to signal (EATS) criteria and is compared with that of existing CV charts. The Markov chain approach is employed in the design of the chart.     

Designing a multiple state repetitive group sampling plan based on the coefficient of variation

A multiple state repetitive group sampling (MSRGS) plan is developed on the basis of the coefficient of variation (CV) of the quality characteristic which follows a normal distribution with unknown mean and variance. The optimal plan parameters of the proposed plan are solved by a nonlinear optimization model, which satisfies the given producer's risk and consumer's risk at the same time and minimizes the average sample number required for inspection. The advantages of the proposed MSRGS plan over the existing sampling plans are discussed. Finally an example is given to illustrate the proposed plan.     

文学信息传播视角下的语言文化变异研究

在我国社会经济发展的过程中,文学信息传播中语言文化的变异研究,其核心在于强调信息传播的过程中,除了注重翻译人员语言中体现的语言文化价值外,还要注重文化翻译人员的文化背景以及其翻译过程中体现的文学信息及实质感悟,并以此来掌握翻译人员在信息传播中所发挥的媒介作用。由此不难看出,文学信息在传播的过程中,针对不同地区、不同民族之间,有着促进文化交流的作用。基于相关因素的影响,文学信息在传播的过程中会发生一定的变化。在此,本文针对文学信息传播视角下的语言文化变异,做以下论述。     

流行语语义变异分析

语言变异是一种普遍存在的社会语言现象。流行语中有相当一部分是通过语义的变异而产生的。流行语语义变异的特点主要表现为:语义映射、语义别解和语义模糊等。