摘要
为研究地理空间距离对网络舆情信息扩散的影响,以新浪微博平台全国范围内关于“九寨沟地震”事件的微博数据为支撑,采用舆情扩散特征指标提取、时间距离空间转换、幂函数模型拟合等方法,先分析网络舆情信息扩散的时空收缩现象,再分别从响应时间、响应强度、传播强度和主题分布等维度上对网络舆情信息扩散中距离的影响进行了研究.结果表明:1)距离对网络舆情信息扩散的响应时间、响应强度、传播强度存在摩擦阻抗作用,但其作用强弱受地理空间的网络基础资源、城市经济发展水平、是否有同类事件发生等因素影响,有地理依赖性;2)距离一定程度上会影响舆情主题的分布,与事件、人员关系较大的主题占比有随距离的增加而减小的趋势,而对事件的认识、情感态度类主题的占比随距离的增加而增大.结论:地理空间距离对网络舆情信息扩散有影响,但对于不同的传播特征,指标的作用存在差异.
In order to reveal the role of distance in Internet public opinion diffusion,based on the micro-blogs about"Jiuzhaigou earthquake"generated from sina micro-blog platform in a 15 day period after the earthquake,there were studied the public opinion diffusion character indicator extraction,space conversion of time-distance,model fitting,to study the time-space compression effect,and the role of distance in response time,response strength,propagation strength and topic distribution of internet public opinion diffusion.The results showed that:1)Distance had a frictional impedance effect on the response time,response strength and propagation strength.The strength of the effect was affected by factors such as economic development level,the network basic resources of the city,and whether similar events occur in the city which were geographically dependent.2)Distance could also affect the distribution of public opinion topics to a certain extent.The proportion of topics that were relevant to the event and people tended to decrease with the increase of distance,while the proportion of some topics about the perception and emotion towards the event would increase with the increase of distance.It was concluded that geospatial distance had an impact on the diffusion of online public opinion,but the effects on different indicators were different.
作者
陈昱杉
李凤全
王天阳
朱丽东
叶玮
CHEN Yushan;LI Fengquan;WANG Tianyang;ZHU Lidong;YE Wei(College of Geography and Environmental Sciences,Zhejiang Normal University,Jinhua 321004,China)
出处
《浙江师范大学学报（自然科学版）》
CAS
2020年第1期77-84,共8页
Journal of Zhejiang Normal University:Natural Sciences
基金
国家自然科学基金资助项目(41572345
41371206)
浙江省自然科学基金资助项目(LY16D010001)
国家大学生创新训练计划项目(201510345025)
关键词
网络舆情信息
时空收缩
地理空间距离
舆情扩散特征指标
时间距离
空间转换
模型拟合
network public opinion
time-space compression
geospatial distance
public opinion diffusion character indicator
time-distance
space conversion
model fitting
