Hi all,
As promised a while ago, we have reworked our "Wikidata Classes and
Properties" browser. I am happy to introduce the first beta version of a
new app, called SQID:
http://tools.wmflabs.org/sqid/
It is a complete rewrite of the earlier application. Much faster, more
usable, much more up-to-date information, supported on all reasonable
browsers, and with tons of new features. Try it yourself, or read on for
the main functions and current dev plans:
== Browse classes and properties ==
You can use it to find properties and class items by all kinds of
filtering settings:
http://tools.wmflabs.org/sqid/#/browse?type=propertieshttp://tools.wmflabs.org/sqid/#/browse?type=classes
New features:
* Sort results by a criterion of choice
* Powerful, easy-to-use filtering interface
* Search properties by label, datatype, qualifiers used, or co-occurring
properties
* Search classes by label, (indirect) superclass or by properties used
on instances of the class
* All property statistics and some class statistics are updated every hour
== View Wikidata entities ==
The goal was to have a page for every property and every class, but we
ended up having a generic data browser that can show all (live) data +
some additional data for classes and properties (this is our main goal,
but the other data is often helpful to understand the context). The UI
is modelled after Reasonator as the quasi-standard of how Wikidata
should look, but if you look beyond the surface you can see many
differences in what SQID will (or will not) display.
Examples:
* Dresden, a plain item with a lot of data:
http://tools.wmflabs.org/sqid/#/view?id=Q1731
* Volcano, a class with many subclasses:
http://tools.wmflabs.org/sqid/#/view?id=Q8072
* sex or gender, a frequently used property:
http://tools.wmflabs.org/sqid/#/view?id=P21
Notable features:
* Fast display
* All statement data with all qualifiers shown
* Extra statistical and live query data embedded
== General Wikidata statistics ==
As a minor feature, we also publish statistics on the weekly full
Wikidata dump (which we process to get some of the statistics):
http://tools.wmflabs.org/sqid/#/status
Don't trust the main page -- find out how many entities there really are ;-)
== Plans, todos, feedback, contributions ==
We are on github, so please make feature requests and bug reports there:
https://github.com/Wikidata/WikidataClassBrowser/issues
Pull requests are welcome too.
Known limitations of the current version:
* Data update still a bit shaky. We refresh most statistical data every
hour (entity data is live anyway), but you may not see this unless you
clear your browser cache. This will be easier in the future.
* Entity data browser does not show sitelinks and references yet.
* Incoming properties not shown yet on entity pages
* I18N not complete yet (if you would like to try the current dev
status, see, e.g.: http://tools.wmflabs.org/sqid/#/view?id=Q318&lang=de)
Moreover, we are also planning to integrate more data displays, better
live statistics, and editing capabilities. Developers who want to help
there are welcome. SQID can also be a platform for other data display
ideas (it's built using AngularJS, so integration is easy).
== And what about Miga? ==
The old Miga-based app at
http://tools.wmflabs.org/wikidata-exports/miga/ will be retired in due
course. Please update your links.
== Credits ==
I have had important development support from Markus Damm, Michael
Günther and Georg Wild. We are funded by the German Research Foundation
DFG. All of us are at TU Dresden. Complex statistics are computed with
Wikidata Toolkit. Live query results come from the Wikidata SPARQL Query
Service.
Enjoy,
Markus
--
Markus Kroetzsch
Faculty of Computer Science
Technische Universität Dresden
+49 351 463 38486
http://korrekt.org/
Hello!
The Nordic Public Broadcasters have a hackday approacing
http://www.nordichackday.com/ in two weeks. I would be interested in using
Wikidata as a backed for an interactive competition/tournament widget if
that is possible.
Do you know of any examples where Wikidata has been used to describe
individual match/qualifying data and competion/tournament structure? Or do
you have any thoughts if it can be done at all? And how? Describing only
final positions is not enough.
I have two concrete cases in mind I would like to work with:
Eurovision Song Contest 2016
https://en.wikipedia.org/wiki/Eurovision_Song_Contest_2016
- you can get a picture of the qualifying structure and results from the
previous competition Eurovision Song Contest 2015
https://en.wikipedia.org/wiki/Eurovision_Song_Contest_2015
- the corresponding wikidata page has some ranking and point-data attached
to the participants but it is not tied to the structure of semi-finals and
finals https://www.wikidata.org/wiki/Q15215081
UEFA Euro 2016 https://en.wikipedia.org/wiki/UEFA_Euro_2016
- you can get a picture of the qualifying structure and match data from the
previous tournament UEFA Euro 2012
https://en.wikipedia.org/wiki/UEFA_Euro_2012
- not event the winner is described on the corresponding Wikidata page
https://www.wikidata.org/wiki/Q22669
Do you think Wikidata has the needed data structures and features in place
for describing this kind of data? Do you have any advice how to go about
describing either ESC2015 of EUFA Euro 2012 in more detail?
Thanks for any help
--
Petri Kola, front end developer, data journalist
http://svenska.yle.fi
Twitter http://twitter.com/pe3
Hi,
I have the impression that some not-so-easy SPARQL queries that used to
run just below the timeout are now timing out regularly. Has there been
a change in the setup that may have caused this, or are we maybe seeing
increased query traffic [1]?
Cheers,
Markus
[1] The deadline for the Int. Semantic Web Conf. is coming up, so it
might be that someone is running experiments on the system to get their
paper finished. It has been observed for other endpoints that traffic
increases at such times. This community sometimes is the greatest enemy
of its own technology ... (I recently had to IP-block an RDF crawler
from one of my sites after it had ignored robots.txt completely).
--
Markus Kroetzsch
Faculty of Computer Science
Technische Universität Dresden
+49 351 463 38486
http://korrekt.org/
Hi all
I am trying to query the wiki data for entities with labels that matches a
regex. I am new in the sparql world. So could you please help me with it.
Here is what I have for now.
https://gist.github.com/anonymous/2810eb5747e51a9ae746183a43f20771
But I don't think it is the right way. Any help will be much appreciate.
Thanks
Hi Markus and All,
In what to best scale and develop Wikidata analytics to anticipate great
future SPARQL use, as well querying in all ~300 Wikipedia languages and
possibly in all ~8000 languages +? Are there new Wikidata job opportunities
here even?
Scott
On Apr 18, 2016 12:31 PM, "Markus Kroetzsch" <markus.kroetzsch(a)tu-dresden.de>
wrote:
Hi,
I have the impression that some not-so-easy SPARQL queries that used to run
just below the timeout are now timing out regularly. Has there been a
change in the setup that may have caused this, or are we maybe seeing
increased query traffic [1]?
Cheers,
Markus
[1] The deadline for the Int. Semantic Web Conf. is coming up, so it might
be that someone is running experiments on the system to get their paper
finished. It has been observed for other endpoints that traffic increases
at such times. This community sometimes is the greatest enemy of its own
technology ... (I recently had to IP-block an RDF crawler from one of my
sites after it had ignored robots.txt completely).
--
Markus Kroetzsch
Faculty of Computer Science
Technische Universität Dresden
+49 351 463 38486
http://korrekt.org/
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Is it possible to get the label of a Wikidata property in a SPARQL query. I
would expect rdfs:label would do the trick, however the following query
does not return the expected results:
SELECT DISTINCT ?propLabel ?prop ?value
WHERE
{
VALUES ?geneID {"672"}
?gene wdt:P351 ?geneID ;
?prop ?value .
?prop rdfs:label ?propLabel .
}
Cheers Andra
