[OSM-talk] Fixing OSM wikipedia redirects

Sarah Hoffmann lonvia at denofr.de
Tue Sep 26 07:48:55 UTC 2017


On Mon, Sep 25, 2017 at 11:53:03PM -0400, Yuri Astrakhan wrote:
> According to Martijn (of MapRoulette fame), there is no way a challenge can
> link to object IDs. MapRoulette can only highlight location. Nor can I
> provide a proposed fix, which means someone would have to manually find the
> broken object, navigate to Wikipedia, copy/paste the title, and save the
> object.  I guesstimate 1 minute per object on average... that's nearly 700
> hours of community time - a huge waste of human brain power that could be
> spent on a much more challenging and less automatable tasks.

We'd have 40.000 more recently reviewed objects in the database. Given how
much the quality of the OSM data decays with time, I would consider that
a welcome boost to overall quality.

And my experience with the OSM community is that there are a lot of people
who wouldn't consider such a task a waste of time but as a wonderful
opportunity to relax in the evening. Maproulette has the advantage that
you can just click away and do one object after the next. I would recommend
to break the 40.000 objects into local batches of 1000 or 2000 and just
load it into Maproulette. Add step-by-step isntructions how to fix the
links and I'm sure you'll be surprised how quickly everything is done.

Kind regards

Sarah

> 
> Osmose might be a good alternative, and might even lower the total number
> of hours required, but still - would that significantly benefit the
> project?  These tags are just a tiny arbitrary subset of one million
> wikipedia-tagged objects.  Verifying just them by hand seems like a waste
> of human intelligence. Instead, we can run queries to produce knowingly bad
> objects and let community fix those. I hope we can let machines do mindless
> tasks, and let humans do decision making.  This would improve contributors
> morale, instead of making them feel like robots :)
> 
> Clarifying: the OSM objects already point to those pages via redirect. The
> redirect information is only stored in Wikipedia.
> 
> On Mon, Sep 25, 2017 at 11:18 PM, Marc Gemis <marc.gemis at gmail.com> wrote:
> 
> > or via Osmose ?
> >
> > On Tue, Sep 26, 2017 at 5:16 AM, Marc Gemis <marc.gemis at gmail.com> wrote:
> > > what about a Maproulette task ?
> > >
> > > On Tue, Sep 26, 2017 at 5:11 AM, Yuri Astrakhan <yuriastrakhan at gmail.com>
> > wrote:
> > >> At the moment, there are nearly 40,000 OSM objects whose wikipedia tag
> > does
> > >> not match their wikidata tag. Most of them are Wikipedia redirects,
> > whose
> > >> target is the right wikipedia article. If we are not ready to abandon
> > >> wikipedia tags just yet (I don't think we should ATM), I think we
> > should fix
> > >> them.  Fixing them by hand seems like a huge waste of the community
> > time,
> > >> when it can be semi-automated.
> > >>
> > >> I propose that a small program, possibly a plugin to JOSM, would change
> > >> wikipedia tags to point to the target article instead of the redirect.
> > >>
> > >> Thoughts?
> > >>
> > >> _______________________________________________
> > >> talk mailing list
> > >> talk at openstreetmap.org
> > >> https://lists.openstreetmap.org/listinfo/talk
> > >>
> >

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