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You need to be careful how you collect data from an on-line
community... you may end up with just one/few of the components.
Here is a graph of an on-line community where people had to register to
join -- it is around a common affiliation. Notice how much of the
network are lurkers/isolates -- those who have not interacted with
anyone else in the community.
http://www.orgnet.com/OnlineCommunity2.pdf [large file 3.7MB]
On May 17, 2006, at 6:06 PM, Elijah Wright wrote:
>>> Getting the bulk data out of LiveJournal is trivially easy. The
>>> others, not so much.
>> Livejournal doesn't provide feeds of what communities people are in,
>> however. It's too bad, because having that affiliation data could be
>> really interesting. As it stands now you have to screen-scrape for
> Yes. You have to work things the other way - collect the FOAF for the
> community and then extract the membership lists from there.
> We assume that this is an artifact of how their backend storage is
> structured, but haven't really done the digging to make sure...
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