基于“奖优罚劣”线性变换算子的区间数多目标灰色局势决策方法

针对多目标决策值为区间数的规范化问题,提出一种具有奖优罚劣特性的[-1,1]线性变换算子,规范化处理原始决策信息,将其运用到目标权重确定,且属性值为区间数的多目标灰色局势决策中,给出了基于"奖优罚劣"算子的区间数多目标灰色局势决策方法,并以空舰导弹设计方案的选择作为应用案例,结果表明该方法操作方便、计算简单、易于实现,可以为一些具有区间值的不确定决策问题提供一种有效、科学、实用的方法。     

The q-Bernstein basis as a q-binomial distribution

The q-Bernstein basis, used in the definition of the q-Bernstein polynomials, is shown to be the probability mass function of a q-binomial distribution. This distribution is defined on a sequence of zero–one Bernoulli trials with probability of failure at any trial increasing geometrically with the number of previous failures. A modification of this model, with the probability of failure at any trial decreasing geometrically with the number of previous failures, leads to a second q-binomial distribution that is also connected to the q-Bernstein polynomials. The q-factorial moments as well as the usual factorial moments of these distributions are derived. Further, the q-Bernstein polynomial B_n(f(t),q;x) is expressed as the expected value of the function f([X_n]_q/[n]_q) of the random variable X_n obeying the q-binomial distribution. Also, using the expression of the q-moments of X_n, an explicit expression of the q-Bernstein polynomial B_n(f_r(t),q;x), for f_r(t) a polynomial, is obtained.     

Weak and strong laws of large numbers for sub-linear expectation

Abstract

In this paper, we derive a new form of weak laws of large numbers for sub-linear expectation and establish the equivalence relation among this new form and the other two forms of weak laws of large numbers for sub-linear expectation. Moreover, we obtain the strong laws of large numbers for sub-linear expectation under a general moment condition by applying our new weak laws of large numbers.     

Fear of small numbers? Immigrant population size and electoral support for the populist radical right in Switzerland

In this paper, we examine the association between contact with migrant populations and support for the populist radical right (PRR) in Switzerland. Building on group threat and intergroup contact theories, which offer opposing predictions, and drawing on Appadurai’s thesis of the ‘fear of small numbers’, we propose a new theoretical framework to explain this association. We predict that the relationship between the size of the migrant populations and PRR voting is nonlinear: a small but noticeable minority triggers the formation of anti-immigrant attitudes, which soften as the minority grows and people start having meaningful interactions with foreigners. To test these theories, we combine individual-level data with municipality-level information. Mixed-effects multilevel models confirm that individuals in municipalities with a moderate proportion of foreigners are more likely than those with fewer or a greater number of migrants to cast their vote in support of PRR parties; this is particularly so for certain stigmatised minorities. We further explore the effect of perceived immigrant threat in moderating these relationships.     

基于沟通过程模式的项目利益相关者沟通效能评价研究

项目利益相关者沟通效能是决定项目成败的关键因素。为了科学评价项目利益相关者沟通效能,文章在梳理沟通过程经典模式的基础上,结合项目沟通的特征,构建项目沟通过程模式,并据此设计项目利益相关者沟通效能评价指标体系,从利益相关者识别、沟通规划、信息传递、沟通成果4个维度测评项目沟通的过程性效能和结果性效能。最后,采用三角模糊数层次分析法确定各个评价指标的权重,采用物元分析法对待评项目沟通效能进行等级评价,并通过算例验证了评价模型的有效性。     

元代至近代临汾书院数量、分布及其变迁

“尧都平阳”即今临汾。临汾古为“冀州”之地，正中冀州曰中土，中土亦可作“中国”，这便是“中国”一词的滥觞。临汾地处于华夏文明的核心区域，它被誉为“华夏第一都”。在这片地域上孕育了历史上举足轻重的帝王将相及杰出的政治家、军事家、思想家、教育家等，这些人物的涌现与临汾当地的文明程度有着密切的关系，而一个地区文明的发达程度依托于教育的发展，教育事业的开展与知识的传授当然离不开与之相关的教育机构——书院。     

NA列的Cesaro型强大数律

当1／2＜α＜1，同分布NA列的Cesaro型强大数律依然成立。     

图的控制临界数

引入了图的控制临界数的概念:图的控制临界数等于使它的控制数减小而需添加的最少边数。给出了一般图的控制临界数的最好上界;并确定了路、圏和完全多部图的控制临界数的精确值。     

大众参与网络众包竞赛的个体绩效影响因素

根据网络众包竞赛运行的特点和众包绩效的相关研究,运用多元线性回归的方法,从网络众包竞赛参与者个体的参赛数量、任期和参赛间隔等行为方面着手,通过对大众参与网络众包竞赛的绩效影响因素开展分析,识别网络众包竞赛个体绩效的主要影响变量。结果表明:参赛者个体的任期和提交次数对比赛成绩有显著的正向作用;总排名和参赛间隔对比赛成绩有显著的负向作用;参赛数量在任期和比赛成绩之间起到了负向的调节作用;参赛数量在参赛间隔和比赛成绩之间起到了正向的调节作用;参赛间隔在任期和比赛成绩之间也起到了负向的调节作用。     

发展教师关于幼儿数概念的知识—— 一项幼儿教师培训项目的实证研究

教师关于幼儿数字概念的知识与其数学教学自我效能有密切联系。发展教师关于幼儿数字概念的知识的培训项目是通过观察模拟数学教学中师幼对话活动和观看评析幼儿园数学教学录像两个方式促进教师发展的。受训教师培训前和结束时的测试结果显示，这两个方式能够有效促进教师关于幼儿数字概念的知识，并形成与其相适应的自我效能。