基于CiteSpace的品牌营销国内研究的可视化分析

新媒体时代背景下,品牌营销研究迎来新的机遇与平台,为系统梳理国内品牌营销领域研究的发展阶段、前沿热点及营销方式,文章以中国知网数据库收录的品牌营销CSSCI期刊论文为样本,借助CiteSpace软件对文献作者、文献机构、关键词等方面进行可视化分析,并绘制知识图谱。研究发现,国内品牌营销经历了缓慢发展、繁荣发展、稳定发展三个阶段,研究成果更加丰富;当前,新媒体环境下社交媒体营销、大数据时代品牌传播及价值共创是研究热点;营销模式升级下品牌营销与新媒体融合的研究、品牌价值共创对品牌形象及品牌资产的研究、品牌营销研究方法创新性的研究、全球化背景下品牌国际营销的研究等是未来研究重点。     

Bayesian analysis of directed graphs data with applications to social networks

Summary.  A fully Bayesian analysis of directed graphs, with particular emphasis on applica- tions in social networks, is explored. The model is capable of incorporating the effects of covariates, within and between block ties and multiple responses. Inference is straightforward by using software that is based on Markov chain Monte Carlo methods. Examples are provided which highlight the variety of data sets that can be entertained and the ease with which they can be analysed.     

k+l色k-饱和图

给出了一类具有较多边数的k+1色k-饱和图(不含K_k,但添加任一边都含K_k的图)的结构。导出了n点最大k+1色k-饱和图的边数的下界。     

成电8010分布式計算机之特点

成电8010是基于单板机开发成功的分布式微机过程控制系统。该系统的性能特点是任务的动态调度、机间合作、优美降级和资源分享等。这些特点使其应用非常成功。本文就是对这些性能特点作相应的分析和介绍。     

Using a Box–Cox transformation in the analysis of longitudinal data with incomplete responses

We analyse longitudinal data on CD4 cell counts from patients who participated in clinical trials that compared two therapeutic treatments: zidovudine and didanosine. The investigators were interested in modelling the CD4 cell count as a function of treatment, age at base-line and disease stage at base-line. Serious concerns can be raised about the normality assumption of CD4 cell counts that is implicit in many methods and therefore an analysis may have to start with a transformation. Instead of assuming that we know the transformation (e.g. logarithmic) that makes the outcome normal and linearly related to the covariates, we estimate the transformation, by using maximum likelihood, within the Box–Cox family. There has been considerable work on the Box–Cox transformation for univariate regression models. Here, we discuss the Box–Cox transformation for longitudinal regression models when the outcome can be missing over time, and we also implement a maximization method for the likelihood, assumming that the missing data are missing at random.     

关于圈C4的St(r+1)-冠的优美性

给出了圈C4的St(r+1)-冠的定义,讨论了圈C4的St(r+1)-冠的优美性,用构造性的方法,给出了圈C4的St(r+1)-冠的优美标号.同时,证明了圈C4的St(r+1)-冠是交错图.     

试论创意思维的视觉表述

运用视觉语言来表述思想,让信息的沟通清晰而顺畅,合理的运用创意思维并找到合适的切入点来提出问题,同时运用精彩的视觉表述方式来解决问题。     

Halin图的边列表染色

Halin图是3－连通平面图，且存在一个面，去掉与该面关联的边后是一棵树。图的边列表染色是任给图G的每条边e配一颜色集合L（e），满足｜L（e）｜=k，k为某确定整数，G的每条边若均可着从L（e）中选择出的一种颜色，使得任一关联的边对着色不同，则称G是k一边可选择的，min（k）称为G的边选择数或边列表色数，记（G）。本文对Halin图证明了列表染色猜想在Δ≠3时成立。即xL=x。     

一类图的优美性

本文考虑Mobius带上格子图的优美性问题，证明了M（n，2）是优美图．     

D_n上的Cayley图的同构因子分解

证明了素数度的阶为2n 的二面体群 D_n 上的 Cayley 图在 n 为奇,或 n 为2~k,或特征集满足一定条件下是有理的。同时也证明了三度二面体群上的 Cayley 图是有理的。