Computer Science ›› 2016, Vol. 43 ›› Issue (10): 214-219.doi: 10.11896/j.issn.1002-137X.2016.10.041

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Study on Recognition of Spatial-Temporal Events Based on Microblogs

ZHENG Zhe-jun, JIN Bei-hong and CUI Yan-ling   

  • Online:2018-12-01 Published:2018-12-01

Abstract: As a kind of social networking service,microblog service can share and broadcast information mainly through the microbloggers’ followers and features strong timeliness of topics and rapid spread.This paper viewed the microblogs as a kind of event sensor which can perceive the dynamic behaviors in the city,and started with identifying the to-pics in microblogs,and then detecting the spatial-temporal events in microblogs.This paper presented a topic model named ST-LDA for analyzing the topics in microblogs.Applying this model,the microblogs with similar semantics and close spatial-temporal nature can be classified into a same topic.Then,this paper gave a method of discovering the spatial-temporal events from topics. Experimental results based on the real data from weibo.com show that our method has a higher recall and precision ratio than LDA-based and TimeLDA-based methods.

Key words: Microblogs,Spatial-temporal events,Topic model

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