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20111230-NodeXL-Twitter-pfizer network graph

From: www.connectedaction.net

Link: www.flickr.com/photos/marc_smith/6793088143/sizes/l/in/ph...


These are the connections among the Twitter users who recently tweeted the word pfizer when queried on January 30, 2012, scaled by numbers of followers (with outliers thresholded). Connections created when users reply, mention or follow one another. The data set starts on 1/28/2012 19:03 and ends on 1/30/2012 23:05 UTC. Green lines are "follows" relationships, blue lines are "reply" or "mentions" relationships.


Layout created with the "Group Layout" feature of NodeXL which tiles bounded regions for each cluster. Clusters calculated by the Clauset-Newman-Moore algorithm are also encoded by color.


A larger version of the image is here: www.flickr.com/photos/marc_smith/6793088143/sizes/l/in/ph...


Betweenness Centrality is defined here: en.wikipedia.org/wiki/Centrality#Betweenness_centrality


Clauset-Newman-Moore algorithm is defined here: pre.aps.org/abstract/PRE/v70/i6/e066111


Top most between users:












Top keyword pairs:

thanks, pfizer, 60

click, here, 60

free, sample, 59

fda, approves, 52

approves, pfizer, 40

sma, milk, 38

support, children, 34

supposedly, cater, 34

@smashsmamilk, #shameonpfizer, 34

cierne, medida, 32

empresa, pfizer, 32

expropiacion, contra, 31

bioportfolio, news, 24

kidney, cancer, 23

#pharma, #pfizer, 21

pfizer, sera, 20

sera, por, 20

fda, approval, 20

pfizer, inc, 20


Graph Metric: Value

Graph Type: Directed

Vertices: 1000

Unique Edges: 2585

Edges With Duplicates: 811

Total Edges: 3396

Self-Loops: 1067

Connected Components: 327

Single-Vertex Connected Components: 313

Maximum Vertices in a Connected Component: 652

Maximum Edges in a Connected Component: 2963

Maximum Geodesic Distance (Diameter): 10

Average Geodesic Distance: 3.57997

Graph Density: 0.002097097

Modularity: 0.486809

NodeXL Version:


More NodeXL network visualizations are here: www.flickr.com/photos/marc_smith/sets/72157622437066929/ and here:



A gallery of NodeXL network data sets is available here: nodexlgraphgallery.org/Pages/Default.aspx?search=twitter


NodeXL is free and open and available from www.codeplex.com/nodexl


NodeXL is developed by the Social Media Research Foundation (www.smrfoundation.org) - which is dedicated to open tools, open data, and open scholarship.


Donations to support NodeXL are welcome through PayPal: www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_bu...


The book, Analyzing social media networks with NodeXL: Insights from a connected world, is available from Morgan Kaufmann and from Amazon.


Marc Smith on Twitter.

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Uploaded on January 31, 2012