Analyzing Word-of-Mouth Information Diffusion in Blogosphere

Abstract

We invesitgate information diffusion in Blogosphere using URLs described in blog posts. We first divide the set of those URLs into two groups, the group of the URLs that belong to the major media sources and the group of the other URLs. Next, by regarding the blogroll and the comment networks as social networks among bloggers, we extract the word-of-mouth information diffusion patterns in Blogosphere. We compare the word-of-mouth information diffusion patterns through the blogroll and the comment networks with the information diffusion patterns from the major media sources in terms of duration and diffusion speed. Moreover, we analyze the word-of-mouth information diffusion patterns through these social networks in Blogosphere in terms of diffusion probablities and time-delays through links, and influence degrees of nodes.