Presentation at Harvard Political Networks Conference, June 13, 2009. Brian Ulicny (presenter). Mieczyslaw Kokar (VIStology, Northeastern), Chris Matheus (coauthors)

1. MINING THE MALAYSIAN ‘SOPO’ BLOGOSPHERE June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

4. Typically, a blogosphere is modeled as a directed network of blog-blog links June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA Image from Case Western Reserve’s Blog Miner Project

5. A (Sopo) Blogosphere is a directed multi-relational network June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA Links are all directed (hrefs); Direction not shown. Plus ‘chrome’

7. Bersih Rally, November 10, 2007 June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

9. Comparison of Profile Information Disclosed in Malaysian Sopo and Random Malaysian Blogs June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

10. Less Polarization in Malaysian Sopo Blogosphere than US Malaysian Sopo Blogosphere US Political Blogosphere (Adamic & Glance, 2005) June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

11. Blogs and Blog Metrics June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

12. Blogs and Blog Metrics: Google For each Term in Post Text: Term Frequency * Inverse Document Frequency (plus incoming link text) IDF: the more posts on X, the less each post is about X. Google PageRank (Eigenvector centrality, determined by links from other websites) June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

13. Blogs and Blog Metrics: Technorati For each Term in Post Text: Term Frequency * Inverse Document Frequency Technorati Authority # of inbound links from other blogs over past 6 months (Indegree centrality) June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

14. Blogs and Blog Metrics: VIStology For each Term in Post Text: (Term Frequency * Inverse Document Frequency) + Outlink Proper Name Frequency. Credibility (Authority + Engagement + Accountability) Specificity Timeliness June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

16. Comment Counts ≈ Engagement June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

19. Validation of Metric: Top Sopo Bloggers from Tan and Ibrahim June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

20. Top Malaysian Sopo Bloggers by Credibility Score June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

21. Post + Outlink Dyad Determines Post Topic Aboutness Determined by Term Frequency in Post Text plus Linked Text Requires: news outlink identification and named entity recognition . VIStology, Inc. | Harvard Networks in Political Science Conference Post + Citations Jeff Ooi Post 6/13/08 Elections, electoral+ reform, Pak+Lah, Coalition for Clean and Fair Elections, (PM) Abdullah (Badawi) Better representation of what post is about:

22. Relevance: Post and Outlink Term Documents Characterize Set of Posts than Post Terms alone June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

23. Specificity Comparison of Blog Post 1 and 2 June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

27. Thank You Questions? Brian Ulicny: bulicny@vistology.com

28. IBlogs Screenshot June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

29. IBlogs Architecture June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

30. Blog Reception Metrics Compared June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

31. Political Affiliations by Blog Profile Count June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA

32. Distribution of News Sources in Bersih Blog Posts June 13, 2009 VIStology - Harvard Political Networks '09 - Cambridge, MA