1. Charting Collections of Connections in Social Media: Creating Visualizations with NodeXL Cody Dunne cdunne@cs.umd.edu Philip Merrill College of Journalism Colloquium October 22, 2012, College Park, MD.

3. My Background

4. Why Visualization?

5. Networks

6. Edge List AliceBobCathy Alice011 Bob000 Cathy100 Adjacency Matrix Vertex1Vertex2 AliceBob AliceCathy Alice

8. Who Uses Network Analysis

9. Cytoscape Pajek Gephi

10. What is Social Media?

11. Social Media is all about connections from people to people.

12. Patterns are left behind

13. There are many kinds of ties…. http://www.flickr.com/photos/stevendepolo/3254238329 Like, Link, Reply, Rate, Review, Favorite, Friend, Follow, Forward, Edit, Tag, Comment, Check-in… Internet Verbs!

14. “Think Link” Nodes & Edges Is related to A B

15. Strong ties

16. Weak ties

17. http://www.flickr.com/photos/dbarefoot/1814873464/sizes/o/ Robert Scoble’s Social Media “Star Fish”

18. Social Networks History: from the dawn of time! Jacob L. Moreno (1934)

20. Why do can we find in Social Media?

21. Hubs

22. Bridges

23. http://www.flickr.com/photos/library_of_congress/3295494976/sizes/o/in/photostream/

24. http://www.flickr.com/photos/amycgx/3119640267/

25. Why are these features important?

26. Understanding information flow

27. Organizations Data sources Email Message Boards Blogs Wikis Document sharing Activity streams Goals Marketing Support Identify experts Identify key employees

28. Communities

29. Welser, Howard T., Eric Gleave, Danyel Fisher, and Marc Smith. 2007. Visualizing the Signatures of Social Roles in Online Discussion Groups. The Journal of Social Structure. 8(2). Visualizing the Signatures of Social Roles in Online Discussion GroupsJournal of Social Structure Experts and “Answer People” Discussion starters, Topic setters Discussion people, Topic setters

31. smrfoundation.org

32. What we have done: Open Tools YASNAT: NodeXL Data providers (“spigots”) FOSS

33. NodeXL Collect data, Excel analysis, statistics, visualization, layout algorithms, filtering, clustering, attribute mapping…

34. What we have done: Open Data NodeXLGraphGallery.org

35. What we have done: Open Scholarship

37. Forthcoming, Sept 2010 http://nodexl.codeplex.com

38. Introduction to NodeXL Like MSPaint™ for graphs. — the Community