[talk-ph] some osm-ph database stats as 20090211
Eugene Alvin Villar
seav80 at gmail.com
Thu Feb 19 01:23:57 GMT 2009
I think there's a big caveat to these user stats. I think it only considers
who last edited the node or way masking the original contributor. Plus,
deletions, merges, and splits are not considered.
On Thu, Feb 19, 2009 at 1:30 AM, Mike Collinson <mike at ayeltd.biz> wrote:
> At 11:46 AM 18/02/2009, maning sambale wrote:
> >His some stats as of 20090211
> >Total Ways: 56064
> >Total Nodes: 588281
> >Total Relations: 40
> >Highway length sums (metres): 33456642m (roughly 16% of roads
> >according to CIA Factbook)
> >Total number of contributors: 150
> >total nodes belonging to the top 30 contributors: 580227 (99%)
> >total ways belonging to the top 30 contributors: 55307 (99%)
> >What does this tell me?
> >1. Contributors are increasing (+20% as of 20090114)
> >2. Data contributed are also increasing (+5% as of 20090114)
> >3. 99% of all data are contributed by the top 30 active mappers.
> >While we are increasingly becoming popular the number of active
> >mappers are just a third of all contributors?
> >How do you interpret the stats?
> It sounds very encouraging, particularly the number contributors that have
> at least had a go.
> Even in the UK, which must have several thousand contributors, I believe a
> study last year showed that 80% was contributed by just ?40? contributors.
> If easy to do, it would be interesting to calculate what percentage was
> contributed by, say, the top 5 contributors. The lower that figure is, the
> more folks other than the original core contributors are getting active.
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