Charting Collections of Connections in Social Media: Creating Visualizations with NodeXL Cody Dunne Philip Merrill College of Journalism.

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Presentation transcript:

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

My Background

Why Visualization?

Networks

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

Who Uses Network Analysis

Cytoscape Pajek Gephi

What is Social Media?

Social Media is all about connections from people to people.

Patterns are left behind

There are many kinds of ties…. Like, Link, Reply, Rate, Review, Favorite, Friend, Follow, Forward, Edit, Tag, Comment, Check-in… Internet Verbs!

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

Strong ties

Weak ties

Robert Scoble’s Social Media “Star Fish”

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

Why do can we find in Social Media?

Hubs

Bridges

Why are these features important?

Understanding information flow

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

Communities

Welser, Howard T., Eric Gleave, Danyel Fisher, and Marc Smith 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

smrfoundation.org

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

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

What we have done: Open Data NodeXLGraphGallery.org

What we have done: Open Scholarship

Forthcoming, Sept

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