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以1996-2004年间国际纳米科技合作的SCIE数据为例,利用社会网络理论中的连续核心-边缘模型描绘国际科技合作网络。基于核心度,划分合作网络中的核心国家和边缘国家,并量化各国在国际合作网络中的相对位置变化。另外,分别利用MDS分析和因子分析揭示核心国家与边缘国家的合作信息,比较两种方法的差异。认为该分析框架对核心-边缘结构分析具有普遍意义,对纳米科技的实证分析也具有现实意义。
Taking the SCIE data of international nanotechnology cooperation in 1996-2004 as an example, this paper uses the continuous core-edge model in social network theory to depict the international cooperation network of science and technology. Based on the core, it divides the core countries and the periphery countries in the cooperative network and quantifies the relative changes of countries in the international cooperation network. In addition, we use MDS and factor analysis respectively to reveal the cooperation information between core countries and peripheral countries, and compare the difference between the two methods. It is considered that this framework has universal significance for the analysis of core-periphery structure, and also has practical significance for the empirical analysis of nanotechnology.