Abstract and Applied Analysis

Hot Topic Propagation Model and Opinion Leader Identifying Model in Microblog Network

Yan Lin, Huaxian Li, Xueqiao Liu, and Suohai Fan

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As the network technique is fast developing, the microblog has been a significant carrier representing the social public opinions. Therefore, it is important to investigate the propagation characteristics of the topics and to unearth the opinion leaders in Micro-blog network. The propagation status of the hot topics in the Micro-blog is influenced by the authority of the participating individuals. We build a time-varying model with the variational external field strength to simulate the topic propagation process. This model also fits for the multimodal events. The opinion leaders are important individuals who remarkably influence the topic discussions in its propagation process. They can help to guide the healthy development of public opinion. We build an AHP model based on the influence, the support, and the activity of a node, as well as a microblog-rank algorithm based on the weighted undirected network, to unearth and analyze the opinion leaders’ characteristics. The experiments in the data, collected from the Sina Micro-blog from October 2012 to November 2012 and from January 2013 to February 2013, show that our models predict the trend of hot topic efficiently and the opinion leaders we found are reasonable.

Article information

Abstr. Appl. Anal., Volume 2013, Special Issue (2013), Article ID 893961, 13 pages.

First available in Project Euclid: 26 February 2014

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Lin, Yan; Li, Huaxian; Liu, Xueqiao; Fan, Suohai. Hot Topic Propagation Model and Opinion Leader Identifying Model in Microblog Network. Abstr. Appl. Anal. 2013, Special Issue (2013), Article ID 893961, 13 pages. doi:10.1155/2013/893961. https://projecteuclid.org/euclid.aaa/1393449593

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