Tag Archives: network science

Network Data Collections

Thanks to a stocnet user, this list of useful network data repositories came along.

I added them to my Diigo list of sna and data.

http://moreno.ss.uci.edu/data.html
http://www.stats.ox.ac.uk/~snijders/siena/siena_datasets.htm
http://www.eelkeheemskerk.nl/networks/
http://konect.uni-koblenz.de/
http://snap.stanford.edu/data/
https://www.flickr.com/photos/25906481@N07/sets/72157604724106153/
http://www.pfeffer.at/data/cshiring
http://www.gdeltproject.org/
http://www.casos.cs.cmu.edu/tools/data.php

 

 

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Filed under Network Dynamics, Research, Social Networks

Chain letters explained…

nsf.gov – News – How Did That Chain Letter Get To My Inbox? – US National Science Foundation NSF
Everyone who has an e-mail account has probably received a forwarded chain letter promising good luck if the message is forwarded on to others–or terrible misfortune if it isnt. The sheer volume of forwarded messages such as chain letters, online petitions, jokes and other materials leads to a simple question–how do these messages reach so many people so quickly?

The NSF research by Jon Kleinberg (From Six Degrees book) and David Liben-Nowell (from Carleton!) has an interesting answer.  It seems that online petitions follow quite circuitous routes and do not spread virally (each recipient spawning new ones) at all.  Key nodes are critical making the whole process quite resistant to prediction and intervention.  Bad news for people selling you the Dummies Guide to Viral Marketing.

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Filed under activism, Marketing, Network Dynamics, Networks, Research