Re: [Wikidata] how to map other identifiers to Wikidata entity IDs

[Andy Mabbett]

On 9 November 2015 at 12:40, Andrew Gray  wrote:

> Please do, if you have a good idea how it would work!

Done:

   
https://www.wikidata.org/wiki/Wikidata:Property_proposal/Property_metadata#Expected_completeness

-- 
Andy Mabbett
@pigsonthewing
http://pigsonthewing.org.uk

___
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata

Re: [Wikidata] how to map other identifiers to Wikidata entity IDs

[Andrew Gray]

Please do, if you have a good idea how it would work!

A.

On 9 November 2015 at 11:00, Andy Mabbett  wrote:
> On 9 November 2015 at 09:28, Andrew Gray  wrote:
>
>> It might be worth thinking about whether we should record
>> these identifier properties as "will always be incomplete", "probably
>> complete", "expected to eventually be complete", etc. If a user
>> queries for an ISBN we don't have, the chances are high that it's a
>> good ISBN we don't cover - but if they query for a country code we
>> don't have, the chances are high that it's an invalid code...
>
> Yes. We can do this with a property, to be applied to other
> properties; and an item for each of the categories you describe.
>
> Will you propose the new property, or shall I?
>
> --
> Andy Mabbett
> @pigsonthewing
> http://pigsonthewing.org.uk
>
> ___
> Wikidata mailing list
> Wikidata@lists.wikimedia.org
> https://lists.wikimedia.org/mailman/listinfo/wikidata



-- 
- Andrew Gray
  andrew.g...@dunelm.org.uk

___
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata

Re: [Wikidata] how to map other identifiers to Wikidata entity IDs

[Andy Mabbett]

On 9 November 2015 at 09:28, Andrew Gray  wrote:

> It might be worth thinking about whether we should record
> these identifier properties as "will always be incomplete", "probably
> complete", "expected to eventually be complete", etc. If a user
> queries for an ISBN we don't have, the chances are high that it's a
> good ISBN we don't cover - but if they query for a country code we
> don't have, the chances are high that it's an invalid code...

Yes. We can do this with a property, to be applied to other
properties; and an item for each of the categories you describe.

Will you propose the new property, or shall I?

-- 
Andy Mabbett
@pigsonthewing
http://pigsonthewing.org.uk

___
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata

Re: [Wikidata-tech] [Wikidata] how to map other identifiers to Wikidata entity IDs

[Daniel Kinzler]

Am 09.11.2015 um 03:26 schrieb S Page:
> I think these other identifiers are all "Wikidata property representing a 
> unique
> identifier" and there are about 350 of them [2] But surprisingly, I couldn't
> find an easy way to look up a Wikidata item using these other identifiers.

We discussed some loose plans for implementing this in Currus when Stas was in
Berlin a few weeks ago. On Special:Search, you would ask for
property:P212:978-2-07-027437-6, and that would find the item with that ISBN.

Stas: do we have a ticket for this somewhere? All I can find are the notes in
the etherpad.

> Also, is this a temporary thing? Will Wikidata eventually have items for every
> book published, every musical recording, etc. and become a superset of all 
> those
> unique identifiers?

It's highly unlikely that wikidata will become a superset of any and all
vocuabularies in existance. Better integration of external identifiers is high
on our priority list right now. The first step will however be to property
expose URIs for them, so we are no longer a dead end in the linked data web.

But since we need to work on Cirrus integration anyway, I expect that we will
have search-by-property soonish, too. I certrainly hope so.


-- 
Daniel Kinzler
Senior Software Developer

Wikimedia Deutschland
Gesellschaft zur Förderung Freien Wissens e.V.

___
Wikidata-tech mailing list
Wikidata-tech@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata-tech

Re: [Wikidata] how to map other identifiers to Wikidata entity IDs

[Daniel Kinzler]

Am 09.11.2015 um 03:26 schrieb S Page:
> I think these other identifiers are all "Wikidata property representing a 
> unique
> identifier" and there are about 350 of them [2] But surprisingly, I couldn't
> find an easy way to look up a Wikidata item using these other identifiers.

We discussed some loose plans for implementing this in Currus when Stas was in
Berlin a few weeks ago. On Special:Search, you would ask for
property:P212:978-2-07-027437-6, and that would find the item with that ISBN.

Stas: do we have a ticket for this somewhere? All I can find are the notes in
the etherpad.

> Also, is this a temporary thing? Will Wikidata eventually have items for every
> book published, every musical recording, etc. and become a superset of all 
> those
> unique identifiers?

It's highly unlikely that wikidata will become a superset of any and all
vocuabularies in existance. Better integration of external identifiers is high
on our priority list right now. The first step will however be to property
expose URIs for them, so we are no longer a dead end in the linked data web.

But since we need to work on Cirrus integration anyway, I expect that we will
have search-by-property soonish, too. I certrainly hope so.


-- 
Daniel Kinzler
Senior Software Developer

Wikimedia Deutschland
Gesellschaft zur Förderung Freien Wissens e.V.

___
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata

Re: [Wikidata] how to map other identifiers to Wikidata entity IDs

[Andrew Gray]

On 9 November 2015 at 08:45, Daniel Kinzler  wrote:

>> Also, is this a temporary thing? Will Wikidata eventually have items for 
>> every
>> book published, every musical recording, etc. and become a superset of all 
>> those
>> unique identifiers?
>
> It's highly unlikely that wikidata will become a superset of any and all
> vocuabularies in existance.

Agree.

*However*, there are some things where we may be able to say with
confidence "Wikidata has a comprehensive set of X" (eg catalogues such
as P1186). It might be worth thinking about whether we should record
these identifier properties as "will always be incomplete", "probably
complete", "expected to eventually be complete", etc. If a user
queries for an ISBN we don't have, the chances are high that it's a
good ISBN we don't cover - but if they query for a country code we
don't have, the chances are high that it's an invalid code...

-- 
- Andrew Gray
  andrew.g...@dunelm.org.uk

___
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata

Re: [Wikidata] how to map other identifiers to Wikidata entity IDs

[Gerard Meijssen]

Hoi,
What we could do for particular searches is to fallback on other resources
that are known to be complete. When we do not find an ISBN, we can fall
back to library systems, local libraries preferably.

There are many ways we can make a difference. When we do this for one field
of knowledge at a time, it will entice people to do more for their own
field.
Thanks,
 GerardM

On 9 November 2015 at 10:28, Andrew Gray  wrote:

> On 9 November 2015 at 08:45, Daniel Kinzler 
> wrote:
>
> >> Also, is this a temporary thing? Will Wikidata eventually have items
> for every
> >> book published, every musical recording, etc. and become a superset of
> all those
> >> unique identifiers?
> >
> > It's highly unlikely that wikidata will become a superset of any and all
> > vocuabularies in existance.
>
> Agree.
>
> *However*, there are some things where we may be able to say with
> confidence "Wikidata has a comprehensive set of X" (eg catalogues such
> as P1186). It might be worth thinking about whether we should record
> these identifier properties as "will always be incomplete", "probably
> complete", "expected to eventually be complete", etc. If a user
> queries for an ISBN we don't have, the chances are high that it's a
> good ISBN we don't cover - but if they query for a country code we
> don't have, the chances are high that it's an invalid code...
>
> --
> - Andrew Gray
>   andrew.g...@dunelm.org.uk
>
> ___
> Wikidata mailing list
> Wikidata@lists.wikimedia.org
> https://lists.wikimedia.org/mailman/listinfo/wikidata
>
___
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata

Re: [Wikidata] how to map other identifiers to Wikidata entity IDs

[Jan Ainali]

You could pass several ISBNs to wdq with OR (but I don't know if it will
support 100 ISBNs in one go):

https://wdq.wmflabs.org/api?q=string%5B957:%222-7071-1620-3%22%5D%20OR%20STRING[957:%222-7071-1562-2%22]


*Med vänliga hälsningar,Jan Ainali*

Verksamhetschef, Wikimedia Sverige 
0729 - 67 29 48


*Tänk dig en värld där varje människa har fri tillgång till mänsklighetens
samlade kunskap. Det är det vi gör.*
Bli medlem. 


2015-11-09 3:26 GMT+01:00 S Page :

> In the article "Presenting Wikidata knowledge" [1], I've Been a bit Bold
> and specified a recipe:
>
> 1. Find existing interesting wiki pages in the domain of your application.
> 2. View the Wikidata information for those pages, choose interesting
> properties.
> 3. Associate Wikidata entity IDs with entities of your application.
> 4. Display their Wikidata information in the user's language.
> 5. Use the Wikidata "sitelinks" information about the item to provide
> links to the full Wikipedia (and Wikiquote, Wikivoyage, etc.) article about
> the entity in the user's language.
>
> But I realize for something like a reference app there won't be Wikidata
> items for every entity in your app for step 3: not every book in print has
> a Wikidata item, nor does every musical recording, etc. For those there are
> already identifiers such as ISBNs and "MusicBrainz release group ID"s (mmm,
> brains). I assume reference app developers already use these more complete
> identifiers and so I'm inviting them to add Wikidata entity IDs where
> available.
>
> I think these other identifiers are all "Wikidata property representing a
> unique identifier" and there are about 350 of them [2] But surprisingly, I
> couldn't find an easy way to look up a Wikidata item using these other
> identifiers.
>
> I found you can do it one-by-one in Wikidata Query [3] and in Wikidata
> Query Serivce [4] but neither seems amenable to doing a query on the fly
> "Get me the Wikidata item for each of these 100 ISBNs "2-7071-1620-3", ...
>
> Also, is this a temporary thing? Will Wikidata eventually have items for
> every book published, every musical recording, etc. and become a superset
> of all those unique identifiers?
>
> Thanks!
>
> [1] https://www.mediawiki.org/wiki/API:Presenting_Wikidata_knowledge
> [2]
> https://www.wikidata.org/wiki/Special:WhatLinksHere/Q19847637?limit=500
> [2] https://wdq.wmflabs.org/api?q=string%5B957:"2-7071-1620-3"%5D and
> [3] https://query.wikidata.org with the the SPARQL (mmm, sparkly)
> PREFIX wdt: 
>
> SELECT ?book WHERE {
>?book  wdt:P957 "2-7071-1620-3"
> }
>
> --
> =S Page  WMF Tech writer
>
> ___
> Wikidata mailing list
> Wikidata@lists.wikimedia.org
> https://lists.wikimedia.org/mailman/listinfo/wikidata
>
>
___
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata

[Wikidata] how to map other identifiers to Wikidata entity IDs

[S Page]

In the article "Presenting Wikidata knowledge" [1], I've Been a bit Bold
and specified a recipe:

1. Find existing interesting wiki pages in the domain of your application.
2. View the Wikidata information for those pages, choose interesting
properties.
3. Associate Wikidata entity IDs with entities of your application.
4. Display their Wikidata information in the user's language.
5. Use the Wikidata "sitelinks" information about the item to provide links
to the full Wikipedia (and Wikiquote, Wikivoyage, etc.) article about the
entity in the user's language.

But I realize for something like a reference app there won't be Wikidata
items for every entity in your app for step 3: not every book in print has
a Wikidata item, nor does every musical recording, etc. For those there are
already identifiers such as ISBNs and "MusicBrainz release group ID"s (mmm,
brains). I assume reference app developers already use these more complete
identifiers and so I'm inviting them to add Wikidata entity IDs where
available.

I think these other identifiers are all "Wikidata property representing a
unique identifier" and there are about 350 of them [2] But surprisingly, I
couldn't find an easy way to look up a Wikidata item using these other
identifiers.

I found you can do it one-by-one in Wikidata Query [3] and in Wikidata
Query Serivce [4] but neither seems amenable to doing a query on the fly
"Get me the Wikidata item for each of these 100 ISBNs "2-7071-1620-3", ...

Also, is this a temporary thing? Will Wikidata eventually have items for
every book published, every musical recording, etc. and become a superset
of all those unique identifiers?

Thanks!

[1] https://www.mediawiki.org/wiki/API:Presenting_Wikidata_knowledge
[2] https://www.wikidata.org/wiki/Special:WhatLinksHere/Q19847637?limit=500
[2] https://wdq.wmflabs.org/api?q=string%5B957:"2-7071-1620-3"%5D and
[3] https://query.wikidata.org with the the SPARQL (mmm, sparkly)
PREFIX wdt: 

SELECT ?book WHERE {
   ?book  wdt:P957 "2-7071-1620-3"
}

-- 
=S Page  WMF Tech writer
___
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata

Re: [Wikidata] how to map other identifiers to Wikidata entity IDs

[Stas Malyshev]

Hi!

> I found you can do it one-by-one in Wikidata Query [3] and in Wikidata
> Query Serivce [4] but neither seems amenable to doing a query on the fly
> "Get me the Wikidata item for each of these 100 ISBNs "2-7071-1620-3", ...

At least in sparql, this would be easy to do:

PREFIX wdt: 
SELECT ?book ?isbn WHERE {
 VALUES ?isbn { "2-7071-1620-3" "2-7071-1620-4" "2-7071-1620-5" ... }
 ?book  wdt:P957 ?isbn
}

Unless I misunderstand what you mean here.

-- 
Stas Malyshev
smalys...@wikimedia.org

___
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata