On 14.02.2016 16:06, Yuri Astrakhan wrote:
I suspect that https://query.wikidata.org can count how many times each
property is used.
Amazingly, you can (I was surprised):
https://query.wikidata.org/#SELECT%20%3FanyProp%20%28count%28*%29%20as%20%3Fcount%29%0AWHERE%20{%0A%20%20%20%20%3Fpid%20%3FanyProp%20%3FsomeValue%20.%0A}%0AGROUP%20BY%20%3FanyProp%0AORDER%20BY%20DESC%28%3Fcount%29
This shows the counts of *all* 8000+ properties used in the RDF store.
Looking for the appropriate URIs, you can read off each Wikidata
property's uses in statements, quantifiers, and references individually.
I am impressed by how well BlazeGraph is handling this.
Markus
On Feb 14, 2016 17:54, "Jane Darnell" <[email protected]
<mailto:[email protected]>> wrote:
Now I suddenly understand why we should have "properties for
properties" so we can categorize these things. It would be nice to
have a list of "authority control" properties and also the number
of times a property is used.
Maybe there is a way to organize the metadata so a "property
property" is unnecessary and another "category-like" tool can be
used to split these up - maybe a hierarchy map?
On Sun, Feb 14, 2016 at 9:48 AM, Markus Krötzsch
<[email protected]
<mailto:[email protected]>> wrote:
Very nice. Showing the shortened property classifications under
"use" is a very good idea!
Markus
On 14.02.2016 15:11, Jane Darnell wrote:
Wow Hay, this is super useful
On Sun, Feb 14, 2016 at 8:50 AM, Hay (Husky)
<[email protected] <mailto:[email protected]>
<mailto:[email protected] <mailto:[email protected]>>> wrote:
Awesome, thanks! :)
-- Hay
On Sun, Feb 14, 2016 at 1:36 PM, Yuri Astrakhan
<[email protected]
<mailto:[email protected]>
<mailto:[email protected]
<mailto:[email protected]>>> wrote:
> Well done! Absolutely love it! I'm already using it
to build
SPARQL queries
> for the wikidata visualizations [1].
>
> [1]: http://en.wikipedia.beta.wmflabs.org/wiki/Sparql
>
> On Sun, Feb 14, 2016 at 2:44 PM, Hay (Husky)
<[email protected] <mailto:[email protected]>
<mailto:[email protected] <mailto:[email protected]>>> wrote:
>>
>> Hey everyone,
>> it seems we're getting new properties every day.
Currently there are
>> over 2000 properties on Wikidata, and for me
personally it's
becoming
>> a bit difficult to see the forest through the
trees. Of course there
>> are a couple of places where they are listed, but
they're either
a bit
>> unwieldy ([1]), broken ([2]) or not detailed enough
([3]).
>>
>> Anyway, code is better than complaining so i hacked
up a tool:
>> https://tools.wmflabs.org/hay/propbrowse/
>>
>> You can filter the list by typing in a couple of
characters, see
>> either a detailed or compact list and it's possible
to sort the list
>> by different properties (id, label, example, etc.).
>>
>> This list is updated every night and code is
available on Github
([4],
>> [5])
>>
>> Let me know if you think is useful and if there's
anything
you're missing.
>>
>> -- Hay / Husky
>>
>> [1]:
https://www.wikidata.org/wiki/Wikidata:List_of_properties
>> [2]:
>>
https://www.wikidata.org/wiki/Special:MyLanguage/Wikidata:List_of_properties/Summary_table
>> [3]:
https://www.wikidata.org/wiki/Special:ListProperties
>> [4]:
https://github.com/hay/wiki-tools/tree/master/public_html/propbrowse
>> [5]:
https://github.com/hay/wiki-tools/tree/master/etc/wikidata-props
>>
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>
>
>
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--
Markus Kroetzsch
Faculty of Computer Science
Technische Universität Dresden
+49 351 463 38486
http://korrekt.org/
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