Ooh, this is good. Thanks to the genius of Alan Levine (aka @cogdog) there is now a really simple way to save stories from storify before they all go behind the another paywall. Just follow these instructions – and save away.
Of my 5O storify stories, this has to be my favourite – betweenness centrality explained with a helpful zombie analogy.
@sheilmcn I know dangerously little about what I'm doing. May need to swap notes with @psychemedia re things like 'betweenness centrality'
— Martin Hawksey (@mhawksey) August 29, 2011
Which prompted me to ask
http://twitter.com/sheilmcn/status/108124634565713920
Which led to this explanation
@mhawksey @sheilmcn one way of thinking about betweenness centrality is how you can use it and work backwards. So for example, nodes in a..
— Tony Hirst (@psychemedia) August 29, 2011
@mhawksey @sheilmcn ..network each have a betweenness centrality value; high values identify nodes that bridge different subnetworks; if a
— Tony Hirst (@psychemedia) August 29, 2011
@mhawksey @sheilmcn ..node with a high betweenness centrality is removed from a network, it may sever connections between subnets. If you
— Tony Hirst (@psychemedia) August 29, 2011
@mhawksey @sheilmcn ..want to cluster a netwrok into different subgrups, one way is to look for hight betweenness centrality nodes and use..
— Tony Hirst (@psychemedia) August 29, 2011
@mhawksey @sheilmcn ..them as cutting point. I guess i have reasonable betweenness centraility value between jisc and datajourn communities
— Tony Hirst (@psychemedia) August 29, 2011
@mhawksey @sheilmcn note that you can have nodes with a high betweennes centraility that have a low number of connections…
— Tony Hirst (@psychemedia) August 29, 2011
@sheilmcn @mhawksey if you have high betweenness centrality, you might fulfil role of broker between two communities;
— Tony Hirst (@psychemedia) August 29, 2011
@psychemedia @sheilmcn @mhawksey Which is why innovation tends to be spread by people who are peripheral in communities
— Wilbert Kraan (@wilm) August 29, 2011
And so it starts to make sense and if this has caught your attention the links below are useful starting points for more information.
@sheilmcn @wilm @psychemedia off to read more about social metrics http://t.co/ZrYKFLa
— Martin Hawksey (@mhawksey) August 29, 2011
@sheilmcn for reference here is the equation for betweenness centrality http://t.co/UogKwHO (you may need more than peppermint tea 😉
— Martin Hawksey (@mhawksey) August 29, 2011
OK, that last one isn’t really much use to anyone:-)
A little while later, via another twitter conversation about Cloud Atlas, genetically modified fabricants and zombies (well it was a Bank Holiday Monday!) Wilbert came up with the perfect example of betweenness centrality.
@LornaMCampbell@sheilmcn Gen. modified zombies are peripheral in horror and scifi, but bridge both by their high betweenness centrality
— Wilbert Kraan (@wilm) 29 August 2011
