Good morning Yuri,
On Saturday I added the Wikidata tag to the monument [1] of Mikhail
Bakunin [2] in Bern. In fact, I had added also the monument itself on
the map. I searched for it for quite some time at Bremgartenfriedhof, as
there was a typing error in the English Wikipedia article concerning the
box number (it is corrected already).
I also added some ground and aerial photos of the monument with GPS
coordinates to the Wikimedia category, published the GPS trace to the
OSM, and filmed a short video in English language:
https://commons.wikimedia.org/wiki/File:Bakunin_Monument_Bern_EN.webm
https://youtu.be/GCGdnFf8BDY
and the same video in Russian:
https://commons.wikimedia.org/wiki/File:Bakunin_Monument_Bern_RU.webm
https://youtu.be/REjGTkJYKwU
Quality on Youtube is better, as I could not figure out yet how to
convert a video to the WEBM format without some quality loss.
I mean that in addition to validating by scripts the legwork also have
got a potential. In this respect, it would be helpful if we had the
Wikipedia & Wikidata layer on the OSM map, with an option to see
Wikidata items without an image, Wikipedia articles in different
languages, so a human may see, analyze, and visit an object on the
ground to clarify the situation. At the this point, I would not dare to
correct an OSM-Wikipedia inconsistency without first visiting, recording
a GPS trace, and filming it. So in my opinion it should be on a map, in
addition to a list.
Some new hardware tools became affordable by now: precise GPS/GLONASS
trackers, video-cameras with stabilized gimbals for ground and aerial
filming, directional microphones. But also the photo-cameras themselves
became better. A human armed with these new tools can do a lot of useful
work at a location, though it may take some time until we learn how to
employ these tools effectively.
[1] http://www.openstreetmap.org/node/4665613556#map=19/46.95039/7.42234
[2] https://en.wikipedia.org/wiki/Mikhail_Bakunin
With best regards,
Oleksiy
On 07.02.17 03:06, Yuri Astrakhan wrote:
TLDR: researching ways to validate wikipedia and wikidata tags, wrote
a script to cross-check OSM and Wikidata, found many incorrect
disambig references, would love to start community discussion on best
guidelines going forward.
I have been analyzing the quality of OSM's wikipedia and wikidata tags
by cross-checking data using both OSM tags and Wikidata. My first
goal is to fix "disambiguation" references - when OSM object links to
the Wikipedia disambiguation page, instead of the real location page.
I have already fixed about 200 objects, but there are about 800+
relations left, and I could really use some help. I don't think its
possible to add them to MapRoulette just yet.
https://www.mediawiki.org/wiki/User:Yurik/OSM_disambigs
While fixing wd/wp tagging issues, I have been putting together a list
of open questions on how we want to improve wikipedia and wikidata
tags in general, and create some guidelines. Lets discuss them in the
talk page?
https://www.mediawiki.org/wiki/User:Yurik/Wikidata_OSM_questions
Lastly, if you have any suggestions on different ways to validate data
using the mixture of Wikidata and OSM, let me know. At the moment I
have a list of all types of OSM objects' wikidata IDs, and mark the
bad ones with a value. If OSM's wikidata's "instance of" of one of the
bad types, my script puts those OSM objects it into a separate list
that I can analyze. The list of types is here - sort by the second column:
https://commons.wikimedia.org/wiki/Data:Sandbox/Yurik/OSM_object_instanceofs.tab
Feel free to modify the second value of any row to indicate that those
objects should be fixed.
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