旅游研究中的认同话题——基于CiteSpaceⅢ的知识图谱及可视化分析

在旅游研究中,国际学术界对认同话题的研究肇始于20世纪80年代,从最初的族群认同发展到今天诸如目的地认同、角色认同、文化认同和自我认同等多个层面的认同,研究领域(范畴)不断拓展,研究主题趋于多样,研究视角愈加宽泛新颖,研究内容越发深入。文章以SSCI所收录国外旅游研究中的认同话题相关文献为研究对象,利用科学知识图谱分析软件CiteSpaceⅢ,对研究现状进行可视化分析,探测研究热点与演化过程。文章不仅客观反映出国外研究前沿,捕捉国外研究热点,也可以为国内相关研究提供探讨话题、关键表述、研究方法等方面的借鉴。     

试论2003年北仑开发开放的工作重点

文章论述了北仑区政府在 2 0 0 3年开发开放中的 6项重点工作。     

舆图、图志与我国近代国家观念的形成

中国的近代化过程也可以约略概括为从“朝代国家”向“民族国家”过渡的历程。在此历程中，除了西方武力入侵这一重要的强制因素外，由中西文化交融所致的文化观念之变异绝不可被忽视。西方文化传播中，世界地理知识的传入挑战了中国自古以来的世界秩序观念，对近代中国“国家”、“民族”观念的形成产生了重要影响。     

系统动态学在人口规划中的应用

本文应用系统动态学方法研究了四川仁寿县人口的规划问题,建立了人口 SD 模型,分析了仿真结果.探讨了实现人口目标的途径。     

MUX級联网络的組合設計

利用MUX级联网络实现多变量逻辑函数时,为求得最简的级联系统,本文提出了利用剩余函数立方图求取变量划分的快速方法。该法无需借助卡诺图,也不需要进行复杂的运算。结果表明,该法行之有效而且十分方便。     

一种新的内插算法的研究

有效的插值算法是现代医学三维成像中的一个焦点。针对ＣＴ断层图像的特点，文中提出了一种新的分区域位置映射插值算法，阐明了算法的基本思路及实施步骤，最后给出实验结果。     

The Stability of Social Groups in Childhood and Adolescence: The Role of the Classroom Social Environment.

This study provides a developmental analysis of childhood and adolescent social relationships within the school context. The social groups of 220 fourth graders and 475 seventh graders were tracked over a one year interval. The initial results indicated that approximately 30% of the social groups were identified as stable in that they maintained at least 50% of their membership over the one year interval. However, the stability in group affiliations was a function of the stability of the composition of the classroom. When schools did not promote classrooms as a unit, only 6.8% of social groups were stable, as compared to 55% of groups being stable when the school did promote classrooms as a unit. This school effect in group stability was demonstrated by a high correlation (rs = .97) between classroom stability and group stability. Even in unstable classrooms, individuals were more likely to maintain affiliations when group members were assigned to the same classroom. This work suggests that stable environments promote stable relationships, which in turn, may promote greater continuity in the organization of behavioral patterns.     

论大学毕业生就业市场化

从大学毕业生就业由精英层面走向大众层面的观点入手,阐述了树立四个方面的市场化就业观,探讨了构建“大基地———大市场———大就业”格局的市场化就业方法对学校应做的工作提出了思考。     

Spatial Clustering Tests Based on the Domination Number of a New Random Digraph Family

We use the domination number of a parametrized random digraph family called proportional-edge proximity catch digraphs (PCDs) for testing multivariate spatial point patterns. This digraph family is based on relative positions of data points from various classes. We extend the results on the distribution of the domination number of proportional-edge PCDs, and use the domination number as a statistic for testing segregation and association against complete spatial randomness. We demonstrate that the domination number of the PCD has binomial distribution when size of one class is fixed while the size of the other (whose points constitute the vertices of the digraph) tends to infinity and has asymptotic normality when sizes of both classes tend to infinity. We evaluate the finite sample performance of the test by Monte Carlo simulations and prove the consistency of the test under the alternatives. We find the optimal parameters for testing each of the segregation and association alternatives. Furthermore, the methodology discussed in this article is valid for data in higher dimensions also.     

Quasi-optimal Bayesian procedures of many hypotheses testing

Quasi-optimal procedures of testing many hypotheses are described in this paper. They significantly simplify the Bayesian algorithms of hypothesis testing and computation of the risk function. The relations allowing for obtaining the estimations for the values of average risks in optimum tasks are given. The obtained general solutions are reduced to concrete formulae for a multivariate normal distribution of probabilities. The methods of approximate computation of the risk functions in Bayesian tasks of testing many hypotheses are offered. The properties and interrelations of the developed methods and algorithms are investigated. On the basis of a simulation, the validity of the obtained results and conclusions drawn is presented.