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Jul 23, 2009


Clara Pelaez

Thank you very much! This is extremely useful!

rick davies

This is a very useful diagram, but it needs magnification to make it more readable.
Could you provide a bigger version?

Bill Hansen

I can't see it well enough to evaluate it. Can you make it much bigger and add some description so that I can interpret the meaning of the connections? That would help me a lot.

Mark Round

Thanks, all, for the comments. I've worked out how the fix the formatting issue. Now just waiting for some vendors to provide promised information on their tools.

On the issue of the meaning of the links, I should note that there is a lot of complexity abstracted away in any such representation. Here, any link from a format i to a tool j just means "tool j can read format j" (and vc vs).

Mark Round

So - the new format for the picture is pdf - although the default rotation isn't ideal, it should be a huge improvement. All comments, as always, appreciated.

Matt DeReno

I would like to post links to 2 SNA tools developed at Carnegie Mellon University...

1. ORA: http://www.casos.cs.cmu.edu/projects/ora/

2. Automap:http://www.casos.cs.cmu.edu/projects/automap/

Please let me know how to go about their inclusions.

Best regards,

Matt DeReno
CASOS Center

Vladimir Barash

I would like to link NodeXL, which can read a variety of formats into an Excel spreadsheet, at: http://nodexl.codeplex.com/

Chris Cameron

Don't forget the excellent python package NetworkX from Los Alamos National Lab. It is able to read and write many network formats, it is open-source and can use many kinds of network data.


It can produce GraphViz compatible plot files so you need the directed tie NetworkX --> Graphviz

It also imports and exports a variety of formats: http://networkx.lanl.gov/reference/readwrite.html

undirected edge-list to add to graph:
NetworkX Adjacency List
NetworkX Edge List
NetworkX GML
NetworkX Pickle
NetworkX GraphML
NetworkX LEDA
NetworkX YAML
NetworkX SparseGraph6
NetworkX Pajek

Mark Round

Vladimir, Chris,

Thanks for the information. I'm in the process of updating the diagram at the moment, an also revisiting the format of the data. Other commitments permitting, these changes should show up within the next few days.

Clement Levallois

I'd suggest to include the software GEPHI, which reads a new XML format (GEXF) and can import (AND / OR) export to a bunch of others (GraphML, GDF, CSV and still others).



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Mark Round

  • {mark.round at itoiresearch.com}
  • A reformed cognitive scientist, now interested in understanding and influencing attitude and behaviour, especially using social and cultural anthropology, working as a consultant in the UK.


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