Community Structure and Information Flow in Usenet: Improving analysis with a thread ownership model
published: June 24, 2009, recorded: May 2009, views: 3561
Report a problem or upload filesIf you have found a problem with this lecture or would like to send us extra material, articles, exercises, etc., please use our ticket system to describe your request and upload the data.
Enter your e-mail into the 'Cc' field, and we will keep you updated with your request's status.
Studying Usenet provides unique insight into online communities, since there is often a pre-defined space for community interaction. Here, we examine a large set of posts in nearly 200 politically-oriented newsgroups over a period of 4 years, using a unique and novel approach to the analysis. Our study is multi-scale: not only do we examine the newsgroups individually and compare measurements of different groups, but we also examine the relationships between the groups. Since users often post to multiple groups, shared participating authors or cross posts may be a way to assess how closely related, content-wise, two groups may be. However, this also causes some confusion of relevance. To combat this effect, we develop an “ownership” measure of an article to the set of cross-posted groups, based on the posting activity of the author. We show that this ownership measure can greatly improve assessment of information diffusion within and between groups, and suggest using it to improve analysis in other problems.
Link this pageWould you like to put a link to this lecture on your homepage?
Go ahead! Copy the HTML snippet !