基于大数据的疫情地理传播与网络舆情时空关系研究

On the Spatiotemporal Relationships between Epidemic Spread and Internet Public Opinion Using Big Data

疫情地理传播与网络舆情之间的时空关系对于开展突发疫情应对具有重要意义,是国家新型城镇化与发展全球化的重要课题。利用H7N9突发疫情感染人数、网络舆情关注数、网民人数、地理行政区划等数据,应用大数据分析与地理可视化方法,对疫情地理传播与网络舆情时空关系进行了研究。结果表明,疫情地理空间传播与网络舆情传播之间存在潜在的时空关系,主要表现为突发疫情引起的网络舆情的空间分布与现实疫情事件的地理空间分布特性具有总体相似一致性和局部偏差性。疫情传播与其引起的网络舆情传播的数量特性、时间特性、地理区域特性具有整体一致性;网络舆情反映疫情地理分布具有局部偏差性。

The spatiotemporal relationships between epidemic spread and Internet public opinion are of great significance to make fast respondence to the outbreak of epidemics.It is also an important topic for the new urbanization and globalization of China.Based on the cases of H7N9,Internet public opinions and Internet users,and the map of administrative divisions,the spatiotemporal relationship between the geographic spread of H7N9 and the Internet public opinion was explored with the help of big data analysis and approaches of geographical visual analytics.Results show that there is a potential spatiotemporal relationship between epidemic spread and Internet public opinion.In other words,the spatial distribution of Internet public opinion on H7N9 is similar to that of epidemics at the global scale but show spatial variance at the local scale.