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[Wikidata] (no subject)

[Your Time will come and it will be your last]

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Re: [Wikidata] Get "subject links" via Wikidata API

[James Heald]

One further alternative is the "Linked Data Fragments" (LDF) interface, 
which is supposed to be a bit lighter on the server than SPARQL -- but 
only returns a set of triples, so further actions would be needed if you 
wanted to get labels for them as well.


For example:

https://query.wikidata.org/bigdata/ldf?subject==wdt:P50=wd:Q35610

-- James.


On 12/04/2017 18:37, f...@imm.dtu.dk wrote:



On 04/12/2017 05:57 PM, Magnus Manske wrote:

Just say "wd:Q12345" (the author) instead of "?author" ?


Yes, that is what we do all over in Scholia, e.g.,
https://tools.wmflabs.org/scholia/author/Q13520818


The backlinks thing works, but is tedious. You'll need to load the items
via action=wbgetentities to check if that link actually means "author",
or some other property.


We got a question from a reviewer asking why we used SPARQL in Scholia
and not just MediaWiki API. My initial thought was that it was not
possible with MediaWiki API, but then I thought of list=backlinks and
followed by (as Magnus points out) action=wbgetentities.

I was afraid that some place hidden in the MediaWiki API would be a
query functionality so you could get Wikidata property-filtered
backlinks, but since Magnus don't point to them, I am pretty sure now
that no such functionality exists. :)


/Finn




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Re: [Wikidata] Get "subject links" via Wikidata API

[fn]

On 04/12/2017 05:57 PM, Magnus Manske wrote:

Just say "wd:Q12345" (the author) instead of "?author" ?


Yes, that is what we do all over in Scholia, e.g.,
https://tools.wmflabs.org/scholia/author/Q13520818


The backlinks thing works, but is tedious. You'll need to load the items
via action=wbgetentities to check if that link actually means "author",
or some other property.


We got a question from a reviewer asking why we used SPARQL in Scholia 
and not just MediaWiki API. My initial thought was that it was not 
possible with MediaWiki API, but then I thought of list=backlinks and 
followed by (as Magnus points out) action=wbgetentities.


I was afraid that some place hidden in the MediaWiki API would be a 
query functionality so you could get Wikidata property-filtered 
backlinks, but since Magnus don't point to them, I am pretty sure now 
that no such functionality exists. :)



/Finn


On Wed, Apr 12, 2017 at 4:52 PM >
wrote:


To get the works that an person has written It would use SPARQL with
something link "SELECT * WHERE { ?work wdt:P50 ?author }".

I could also get the authors of a work via Wikidata MediaWiki API.

My question is whether it is possible to get the works of an author
given the author. With my knowledge of the API, I would say it is not
possible, except if you do something "Special:WhatLinksHere"
(list=backlinks) and process/filter all the results.


Finn Årup Nielsen
http://people.compute.dtu.dk/faan/

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Re: [Wikidata] Get "subject links" via Wikidata API

[Magnus Manske]

Just say "wd:Q12345" (the author) instead of "?author" ?

The backlinks thing works, but is tedious. You'll need to load the items
via action=wbgetentities to check if that link actually means "author", or
some other property.

On Wed, Apr 12, 2017 at 4:52 PM  wrote:

>
> To get the works that an person has written It would use SPARQL with
> something link "SELECT * WHERE { ?work wdt:P50 ?author }".
>
> I could also get the authors of a work via Wikidata MediaWiki API.
>
> My question is whether it is possible to get the works of an author
> given the author. With my knowledge of the API, I would say it is not
> possible, except if you do something "Special:WhatLinksHere"
> (list=backlinks) and process/filter all the results.
>
>
> Finn Årup Nielsen
> http://people.compute.dtu.dk/faan/
>
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[Wikidata] Get "subject links" via Wikidata API

[fn]

To get the works that an person has written It would use SPARQL with 
something link "SELECT * WHERE { ?work wdt:P50 ?author }".


I could also get the authors of a work via Wikidata MediaWiki API.

My question is whether it is possible to get the works of an author 
given the author. With my knowledge of the API, I would say it is not 
possible, except if you do something "Special:WhatLinksHere" 
(list=backlinks) and process/filter all the results.



Finn Årup Nielsen
http://people.compute.dtu.dk/faan/

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[Wikidata] (no subject)

[Ananth Subray]

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[Wikidata] (no subject)

[Emir Mujadzic]

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