中美及中国周边海洋国家地缘政治关系时空演化

利用全球新闻媒体数据库对中美及中国周边海洋国家的事件关注度和事件影响力进行测算，刻画中美及中国周边海洋国家间地缘政治关系的阶段演变特征，通过社会网络分析法探索不同阶段中美及中国周边海洋国家地缘政治关系的网络特征及热点国家。研究发现：① 1991—2018年中美及中国周边海洋国家地缘政治关系演变划分2个阶段：第一阶段（1991—2007年）平稳发展期，第二阶段（2008—2018年）跌宕发展期。中美及中国周边海洋国家间事件关注度总和及事件影响力总和逐渐提升，国家间相互影响程度日益加深；② 区域内不同阶段的突出热点国家由中美、中日和日韩朝逐渐演变为中美两国；③ 美国是中国同周边海洋国家地缘政治关系的首要影响国家，历届美国政府外交政策对中国周边海洋地缘政治关系的发展态势呈现出阶段式的影响特征。

Spatio-temporal Evolution of Geopolitical Relations in China,the United States and China's Neighboring Maritime Countries

Use social network analysis for visual analysis, analyze the network characteristics of geopolitical relations among China, the United States and China’s neighboring maritime countries at different stages and highlight hotspot countries through a variety of community exploration features. Finally, based on the change of the United States regime, the main reasons for the changes in geopolitical relations among countries in the region are explained. The results show that: 1) The evolution of geopolitical relations among China, the United states and China’s neighboring maritime countries from 1991 to 2018 was divided into two stages, the first stage was a period of steady development from 1991 to 2007, and the second stage was a period of ups and downs from 2008 to 2018. The total level of interest and the influence of events among China, the United States and China’s neighboring maritime countries have increased year by year, and the degree of mutual influence between countries has also deepened. It can be seen that the geopolitical relationships among China, the United States and China’s neighboring maritime countries has become increasingly complex, and the interaction between countries has become increasingly fierce. 2) There are certain spatial characteristics of the geopolitical relationship network at this stage, which are mainly reflected by the change in the scope of influence between China and the United States. At the same time, prominent hotspot countries in the region have also changed. The hotspots of China, the United States, Japan, R O Korea and D P R Korea . It has gradually evolved into China and the United States. The increasing influence of China and the United States in the region has directly affected the trend of geopolitical relations between China, the United States and China’s neighboring maritime countries. 3) The United States is the first country to influence geopolitical relations between China and neighboring maritime countries. The government’s use of previous foreign policies has had different impacts on regional geopolitical relations and is consistent with the development of geopolitical relations in China and neighboring maritime countries.