Hoi,
When you leave out qualifiers, you will find that Ronald Reagan was never
president of the United States and only an actor. Yes, omitting the
statements with qualifiers is wrong but as a consequence the total of the
information is wrong as well.
I do not see the point of this functionality. It is wrong any way I look at
it. Without qualifiers information is wrong. Without statements information
is wrong and without the items involved the information is incomplete and
wrong.
As I see it you cannot win. Including this type of RDF export produces
something that I fail to see serves any purpose or it is the purpose that
you can.
Thanks,
GerardM
On 11 June 2014 12:03, Markus Krötzsch <mar...@semantic-mediawiki.org>
wrote:
> 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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