On 10/06/14 22:50, Gerard Meijssen wrote:
Hoi,
It is stated that there are no qualifiers included. In one of the
articles you write that it is to be understood that the vailidity of the
information is dependent on the existing qualifiers.
What is the value of these RDF exports with the qualifiers missing?
Our normal exports include all the qualifiers and references.
Our simplified exports include only those statements that don't have
qualifiers. You are right that it would lead to wrong information to
leave away quantifiers.
Cheers,
Markus
Thanks,
GerardM
On 10 June 2014 10:43, Markus Kroetzsch <markus.kroetz...@tu-dresden.de
<mailto:markus.kroetz...@tu-dresden.de>> wrote:
Hi all,
We are now offering regular RDF dumps for the content of Wikidata:
http://tools.wmflabs.org/__wikidata-exports/rdf/
<http://tools.wmflabs.org/wikidata-exports/rdf/>
RDF is the Resource Description Framework of the W3C that can be
used to exchange data on the Web. The Wikidata RDF exports consist
of several files that contain different parts and views of the data,
and which can be used independently. Details on the available
exports and the RDF encoding used in each can be found in the paper
"Introducing Wikidata to the Linked Data Web" [1].
The available RDF exports can be found in the directory
http://tools.wmflabs.org/__wikidata-exports/rdf/exports/
<http://tools.wmflabs.org/wikidata-exports/rdf/exports/>. New
exports are generated regularly from current data dumps of Wikidata
and will appear in this directory shortly afterwards.
All dump files have been generated using Wikidata Toolkit [2]. There
are some important differences in comparison to earlier dumps:
* Data is split into several dump files for convenience. Pick
whatever you are most interested in.
* All dumps are generated using the OpenRDF library for Java (better
quality than ad hoc serialization; much slower too ;-)
* All dumps are in N3 format, the simplest RDF serialization format
that there is
* In addition to the faithful dumps, some simplified dumps are also
available (one statement = one triple; no qualifiers and references).
* Links to external data sets are added to the data for Wikidata
properties that point to datasets with RDF exports. That's the
"Linked" in "Linked Open Data".
Suggestions for improvements and contributions on github are welcome.
Cheers,
Markus
[1]
http://korrekt.org/page/__Introducing_Wikidata_to_the___Linked_Data_Web
<http://korrekt.org/page/Introducing_Wikidata_to_the_Linked_Data_Web>
[2] https://www.mediawiki.org/__wiki/Wikidata_Toolkit
<https://www.mediawiki.org/wiki/Wikidata_Toolkit>
--
Markus Kroetzsch
Faculty of Computer Science
Technische Universität Dresden
+49 351 463 38486 <tel:%2B49%20351%20463%2038486>
http://korrekt.org/
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