电子科技大学学报2017，Vol.46Issue(2)：458-468,11.DOI:10.3969/j.issn.1001-0548.2017.02.022
微博网络中用户主题兴趣相关性及主题信息扩散研究
Research on Correlation of Users′ Topic Interests and Topic Information Diffusion in Microblog Networks
摘要
Abstract
The topic analysis on the Sina microblog data is studied by using the Twitter-LDA topic model. The analysis based on correlation of users' topic interests shows that topic interests between users follow the three degrees of correlation. Within the same topic interest when the number of microblogs that users publish increases, the number of microblogs that their fans within three degrees publish also increases in fluctuation, and the similarity of topic interests between users and their multi-degree fans decreases with the increase of degree. Through the analysis and comparison of the diffusion difference of diverse topic categories, we find that users prefer the information with lifestyle topic, reposting probability is significantly different among microblogs within different topic categories, and the average reposting count can be 10 times in difference. In microblog information diffusion trees, diffusion depth, diffusion time interval and users' diffusion ability all show different characteristics for microblogs with different topic categories.关键词
信息扩散/微博网络/主题分析/用户行为Key words
information diffusion/microblog network/topic analysis/user behavior分类
自科综合引用本文复制引用
罗春海,刘红丽,胡海波..微博网络中用户主题兴趣相关性及主题信息扩散研究[J].电子科技大学学报,2017,46(2):458-468,11.基金项目
国家自然科学基金(61473119, 61104139) （61473119, 61104139）
中央高校基本科研业务费(WN1524301) （WN1524301）
