全球科研论文合作网络的结构异质性及其邻近性机理

发布时间：2018-03-10 13:26

本文选题：科研论文合作网络　切入点：结构异质性　出处：《地理学报》2017年04期 　论文类型：期刊论文

【摘要】：以科研论文为媒介的知识合作网络已成为知识溢出的重要通道,但目前学术界对全球科研合作网络结构的复杂性涌现机制缺乏深入的探讨。基于2014年Web of Science核心合集所收录的科研论文合著数据,借助大数据挖掘技术、复杂网络、空间统计和重力模型分析,刻画了全球科研论文合作网络的拓扑结构、空间格局及其邻近性机理。结果发现:1拓扑结构上,形成了以美国为核心的层级网络,具有小世界性和等级层次性,发育出典型的等级"核心—边缘"结构。2空间格局上,以美国、西欧、中国和澳大利亚为顶点的"四边形"成为全球科研论文合作网络的骨架;三大中心性指标值的空间分异明显,强度中心性形成以美国为极核,加拿大、澳大利亚、中国及西欧诸国为次中心的"一超多强"格局,与之类似的介数中心性呈现北美、西欧和东亚"三足鼎立"的形态,度中心性分布则相对均匀,表现出"大分散、小集中"的"多中心—边缘集散"格局。3重力回归分析发现,地理距离抑制了国际科研论文合作,不过其影响力较弱;社会与经济邻近性对全球科研论文合作具有明显的促进作用,语言差异不是国际科研合作交流的障碍。
[Abstract]:The knowledge cooperation network with scientific research papers as the medium has become an important channel of knowledge spillover. However, there is a lack of deep discussion on the emergence mechanism of the global scientific research cooperative network structure. Based on the coauthor data of scientific research papers collected by Web of Science in 2014, and with the help of big data's mining technology, the complex network is developed. Spatial statistics and gravity model analysis describe the topological structure, spatial pattern and proximity mechanism of the cooperative network in global scientific research papers. It is found that a hierarchical network with the United States as the core is formed on the topological structure of 1: 1. It has the characteristics of small world and hierarchical level, and develops typical hierarchical "core-edge" structure .2 spatial pattern. The "quadrangle" with the United States, Western Europe, China and Australia as the apex becomes the skeleton of the global scientific research paper cooperation network. The spatial differentiation of the three central index values is obvious, the intensity centrality is formed by the United States as the polar core, Canada, Australia, China and Western Europe as the secondary center of the "one super strong" pattern. The form of "Tripod" in Western and East Asia is relatively uniform, showing a "large dispersion, small concentration" pattern of "multi-central-marginal distribution". 3 gravity regression analysis shows that, Geographical distance inhibits international scientific research paper cooperation, but its influence is weak. Social and economic proximity play a significant role in promoting global scientific research paper cooperation, and language differences are not obstacles to international scientific research cooperation and exchange.
【作者单位】：华东师范大学城市与区域科学学院;华东师范大学科技创新与发展战略研究中心;
【基金】：国家自然科学基金项目(41571123,41471108)~~
【分类号】：G321

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