Details and explanation here. Via Mark Purcell, Clive Barnett and others…
Discover more from Progressive Geographies
Subscribe to get the latest posts sent to your email.
Details and explanation here. Via Mark Purcell, Clive Barnett and others…
Subscribe to get the latest posts sent to your email.

what does each color represent? or is it arbitrary?
You’d need to check with the designer, but there is some info on it here – http://drunks-and-lampposts.com/2012/06/13/graphing-the-history-of-philosophy/
Seems to be time and origin, maybe topic of interest too (but Umberto Eco?). Sometimes the program (I guess it’s Gephi) creates groups (modules) based on relationships, weigh and centrality. As mentioned here for an analogue graph:
http://www.martingrandjean.ch/le-numerique-outil-culture-gadget-technologique/
it could be that the wiki mentioned “have influenced” or “influenced by” in the author article.