Hi,
I noticed we can have several identical references for the same
statement. Here is an example from Wikidata [1]:
---------8<---------------------------------------------------
'references': [ { 'hash': 'fa278ebfc458360e5aed63d5058cca83c46134f1',
'snaks': { 'P143': [ { 'datatype': 'wikibase-item',
'datavalue': { 'type': 'wikibase-entityid',
'value': { 'entity-type': 'item',
'id': 'Q328',
'numeric-id': 328}},
'…
[View More]hash': 'e4f6d9441d0600513c4533c672b5ab472dc73694',
'property': 'P143',
'snaktype': 'value'}]},
'snaks-order': ['P143']},
{ 'hash': 'fa278ebfc458360e5aed63d5058cca83c46134f1',
'snaks': { 'P143': [ { 'datatype': 'wikibase-item',
'datavalue': { 'type': 'wikibase-entityid',
'value': { 'entity-type': 'item',
'id': 'Q328',
'numeric-id': 328}},
'hash': 'e4f6d9441d0600513c4533c672b5ab472dc73694',
'property': 'P143',
'snaktype': 'value'}]},
---------8<---------------------------------------------------
>From what I understood from the docs [2][3], lists in the JSON
serialized output are actually _sets_. So how can we have the same item
twice in a set? Can I safely ignore the duplicate reference?
Regards,
- Sylvain
[1]:
https://www.wikidata.org/w/api.php?action=wbgetentities&format=json&ids=Q13…
[2]: https://www.mediawiki.org/wiki/Wikibase/DataModel/JSON#References
[3]: https://www.mediawiki.org/wiki/Wikibase/DataModel#ReferenceRecords
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Hopefully this is the right mailing list for my topic.
The German Verein für Computergenealogie is the largest genealogical
society in Germany with more than 3,700 members. We are currently
considering whether Wikibase is a suitable system for us. Most
interesting is the use for our *propographical data*.
Prosopographical data can be divided into three classes:
a) well-known and well-studied personalities, typically authors
b) lesser-known but well-studied personalities that can be clearly …
[View More]and
easily identified in historical sources
c) persons whose identifiability in various sources (such as church
records, civil record, city directory) has to be established using
(mostly manual) record linkage
Data from (a) can be found in the GND of the German National Libarary.
For data from class (b) systems such as FactGrid exists. The Verein für
Computergenealogie mostly works with data from class (c). We have a huge
amount of that kind of data, more than 40 million records. Currently it
is stored in several MySQL and MongoDB databases.
This leads me to the crucial question: Is the performance of Wikibase
sufficient for such an amount of data? One record for a person will
typically result in maybe ten statements in Wikibase. Using
QuickStatements or the WDI library I have not been able to insert more
than two or three statements per second. It would take month to import
the data.
Another question is whether the edit history of the entries can be
preserved. For some data set the edit history goes back to 2004.
I hope someone can give me hints on these questions.
Best wishes
Jesper
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Great news, to see how Wikibase keeps gaining momentum. Looking forward to
working with you.
Cheers,
Andra
On Tue, Apr 21, 2020 at 10:39 PM Samuel Klein <meta.sj(a)gmail.com> wrote:
> Fantastic news, Mohammed :) SJ
>
> On Tue, Apr 21, 2020 at 12:02 PM Mohammed Sadat Abdulai <
> mohammed.sadat_ext(a)wikimedia.de> wrote:
>
>> Hi everyone,
>>
>> I hope you’re all having a great day!
>>
>> I’m super excited to announce that I’ll be …
[View More]joining the software
>> department at Wikimedia Germany to help advance engagement between the
>> software development team and the communities using and contributing to
>> Wikidata/Wikibase.
>>
>> Together with Léa, Sam and Lydia, I will be liaising with the different
>> user groups within the Wikibase community to provide information about
>> software changes and promote a smooth and productive collaboration between
>> stakeholders. You can share bug reports with us at <
>> https://www.wikidata.org/wiki/Wikidata:Contact_the_development_team>
>>
>> Please leave a note on my talkpage <
>> https://www.wikidata.org/wiki/User_talk:Mohammed_Sadat_(WMDE)> or write
>> to me directly anytime you encounter issues with the Wikibase software so
>> that I can bring them to the development team:
>>
>>
>> * mohammed.sadat_ext(a)wikimedia.de
>>
>> * Telegram (@masssly) and IRC (mabdulai)
>>
>> Best Regards,
>>
>> --
>>
>> Mohammed Sadat Abdulai
>>
>> *Community Communications Manager for Wikidata/Wikibase*
>>
>> Wikimedia Deutschland e.V.
>> Tempelhofer Ufer 23-24
>> 10963 Berlin
>> www.wikimedia.de
>> _______________________________________________
>> Wikidata mailing list
>> Wikidata(a)lists.wikimedia.org
>> https://lists.wikimedia.org/mailman/listinfo/wikidata
>>
>
>
> --
> Samuel Klein @metasj w:user:sj +1 617 529 4266
> _______________________________________________
> Wikidata mailing list
> Wikidata(a)lists.wikimedia.org
> https://lists.wikimedia.org/mailman/listinfo/wikidata
>
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Congratulations Mohammed! So excited that we can keep collaborating
together professionally as well as on wiki :)
Cheers,
Alex
On Tue, Apr 21, 2020 at 1:01 PM Mohammed Sadat Abdulai <
mohammed.sadat_ext(a)wikimedia.de> wrote:
> Hi everyone,
>
> I hope you’re all having a great day!
>
> I’m super excited to announce that I’ll be joining the software department at
> Wikimedia Germany to help advance engagement between the software
> development team and the …
[View More]communities using and contributing to
> Wikidata/Wikibase.
>
> Together with Léa, Sam and Lydia, I will be liaising with the different
> user groups within the Wikibase community to provide information about
> software changes and promote a smooth and productive collaboration between
> stakeholders. You can share bug reports with us at <
> https://www.wikidata.org/wiki/Wikidata:Contact_the_development_team>
>
> Please leave a note on my talkpage <
> https://www.wikidata.org/wiki/User_talk:Mohammed_Sadat_(WMDE)> or write
> to me directly anytime you encounter issues with the Wikibase software so
> that I can bring them to the development team:
>
>
> * mohammed.sadat_ext(a)wikimedia.de
>
> * Telegram (@masssly) and IRC (mabdulai)
>
> Best Regards,
>
> --
>
> Mohammed Sadat Abdulai
>
> *Community Communications Manager for Wikidata/Wikibase*
>
> Wikimedia Deutschland e.V.
> Tempelhofer Ufer 23-24
> 10963 Berlin
> www.wikimedia.de
> _______________________________________________
> Wikidata mailing list
> Wikidata(a)lists.wikimedia.org
> https://lists.wikimedia.org/mailman/listinfo/wikidata
>
--
Alex Stinson
Senior Program Strategist
Wikimedia Foundation
Twitter:@glamwiki/@sadads
Learn more about how the communities behind Wikipedia, Wikidata and other
Wikimedia projects partner with cultural heritage organizations:
https://outreach.wikimedia.org/wiki/GLAM
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