10. Hot Topic Detection in News Blog Based on W2T Methodology

A social event is often unlimitedly amplified and promptly spread in blogspace, and it is valuable to correctly detect blog hot topics for managing the cyberspace. Although hot topic detection techniques have a great improvement, it is more significant o find what determines the life span of a blog topic, because the online consensus brought by the topic unavoidably experiences the real life. The W2T (Wisdom Web of Things) methodology considers the information organization and management from the perspective of Web services, which contributes to a deep understanding of online phenomena such as users’ behaviors and comments in e-commerce platforms and online social networks. This chapter first applies the W2T methodology to analyze the formation and evolution of a blog hot topic, and some influential factors which determine the development of the topic are identified to recognize hot topics. And then, the construction of a blog topic model considers information granularity in order to detect and track the evolution of the topic. Experimental results show that the proposed method for detecting the blog hot topic is feasible and effective.