Lars Aronsson wrote: >Sent: 10 March 2009 9:21 PM >To: [email protected] >Subject: [OSM-talk] Who contributed most? > > >In the discussion about the license change, somebody mentioned the >idea that we might have to delete contributions by users who >refuse to agree to the license change or by users who we fail to >contact. > >I have no idea if that suspicion is real or not, but it made me >think: Has anybody tried to estimate the size of contributions >from an individual user? Only counting the number of edits >doesn't say much, because a user can make many small edits to >convert roundabouts from squares to circles, another user >contributes streetnames to an already mapped city, a third user >has mapped the country roads of an entire county. We sometimes >hear that OSM has 100,000 registered users, but many haven't >contributed much. Well, how many have contributed much? Who >contributed the most? For a particular region, such as Sweden, >who are the 20 or 200 most valuable contributors? Do we know? > >I think this has an interest (or at least curiosity) on its own, >quite independent of the license change. >
I can't give any precise details but as I recall I think only about 30% of our user base have ever contributed anything to the map data. Then looking at my own area (which may or may not be typical) I see that 90% of the data is contributed by 10% of the contributors. So if that scales then we might have 90% contributed by 3,000 users but a more in depth analysis of change using planet data would probably throw up a more reliable set of figures. Also, Germany has more contributors than anywhere else and I don't know if the 90%/10% rule applies well there or not. Cheers Andy > >-- > Lars Aronsson ([email protected]) > Aronsson Datateknik - http://aronsson.se > >_______________________________________________ >talk mailing list >[email protected] >http://lists.openstreetmap.org/listinfo/talk _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
