Re: [Dbpedia-discussion] [Dbpedia-developers] Mapping Wikidata properties to DBpedia ones

2013-08-31 Thread Dimitris Kontokostas
Hi Kingsley,

Sorry but I still don't see a clear solution with your suggestion.
Just like in Wikipedia when we see an Infobox_Person we assume that the
resource is an dbo:Person
we want to do the same in WikiData when we see a P107
Q215627http://www.wikidata.org/entity/Q215627claim
In the 1st case it's an unstructured text to LD the 2nd is an LD2LD but to
a less complicated and well-known schema (that will make existing DBpedia
queries compatible to Wikidata)

Thus, When I wrote the triple Q42 a dbo:Person, that triple did not came
from dbr:Douglas_Adams as you replied but directly from the Wikidata claim

Now, does Q42 need to be the original Wikidata resource 
http://www.wikidata.org/entity/Q42 and if yes, how should DBpedia publish
 dereference these triples?
Or should we use our own domain and make owl:sameAs / foaf:primaryTopic
links to Wikidata like we did with all Wikipedia language editions?

Other suggestions / directions are also welcome of course!

Best,
Dimitris




On Fri, Aug 30, 2013 at 7:45 PM, Kingsley Idehen kide...@openlinksw.comwrote:

  On 8/30/13 12:25 PM, Dimitris Kontokostas wrote:

  Thanks Kingsley,

  for now we don't host the data so wikidata.dbpedia.org/resource/.. does
 not dereference anything

  lets take an example to recup
  Q42 (Douglas Adams), besides the answer to the ultimate question [1] :)
 has the following triple
  http://www.wikidata.org/entity/Q42 http://www.wikidata.org/entity/P107
 http://www.wikidata.org/entity/Q215627

  which in our dump *will* be translated to
 http://wikidata.dbpedia.org/resource/Q42 owl:sameAs
 http://www.wikidata.org/entity/Q42
 http://wikidata.dbpedia.org/resource/Q42 rdf:type dbpedia-owl:Person

  If I get it right, your suggestion is to generate this triple directly
 right?
 http://www.wikidata.org/entity/Q42 rdf:type dbpedia-owl:Person

  but in this case, when someone opens Q42 he/she will not see out added
 triples


 Having taken a closer look at the RDF content in WikiData documents It
 should be:

 http://www.wikidata.org/entity/Q42 foaf:primartyTopic
 http://dbpedia.org/resource/Douglas_Adamshttp://dbpedia.org/resource/Douglas_Adams.

 To be really safe, i.e., not vulnerable to changes relating to how they
 evolve handling of entity disambiguation via content negotiation etc., you
 can opt to be much more specific about the RDF document URLs:


 http://www.wikidata.org/entity/Q42.nt foaf:primaryTopic
 http://dbpedia.org/resource/Douglas_Adamshttp://dbpedia.org/resource/Douglas_Adams.
 http://www.wikidata.org/entity/Q42.rdf foaf:primaryTopic
 http://dbpedia.org/resource/Douglas_Adamshttp://dbpedia.org/resource/Douglas_Adams.

 That's it, let the Web of Linked Data do the rest :-)


 Kingsley.



  Cheers,
  Dimitris


 [1]
 http://en.wikipedia.org/wiki/42_%28number%29#The_Hitchhiker.27s_Guide_to_the_Galaxy


 On Fri, Aug 30, 2013 at 5:57 PM, Kingsley Idehen 
 kide...@openlinksw.comwrote:

  On 8/29/13 2:45 PM, Hady elsahar wrote:


  i guess what we need now is to map between the original WikiData URIs
 and their URIs we use in DBpedia under the new namespace , for example :

  http://wikidata.dbpedia.org/resource/Q1293045 owl:sameAs 
 http://wikidata.org/entity/Q1293045

  No.

 As per my last two mails. You are making unnecessary work here. Wikidata
 is publishing RDF based Linked Data. Thus, simply use their URIs.

 Example of the implications of your current approach:

 curl -ILH Accept: text/turtle
 http://wikidata.dbpedia.org/resource/Q1293045
 curl: (6) Couldn't resolve host 'wikidata.dbpedia.org'


 Just map the WikiData URI to the DBpedia URI and you leverage the
 benefits of:


 curl -ILH Accept: text/turtle  http://wikidata.org/entity/Q1293045
 HTTP/1.0 301 Moved Permanently
 Date: Fri, 30 Aug 2013 14:51:49 GMT
 Server: Apache
 *Location: http://www.wikidata.org/entity/Q1293045*
 *Content-Type: text/html*; charset=iso-8859-1


 HTTP/1.0 302 Moved Temporarily
 Date: Fri, 30 Aug 2013 14:51:49 GMT
 Server: Apache
 *Location: https://www.wikidata.org/wiki/Special:EntityData/Q1293045*
 *Content-Type: text/html*; charset=iso-8859-1


 HTTP/1.1 303 See Other
 Server: nginx/1.1.19
 Date: Fri, 30 Aug 2013 14:51:54 GMT
 *Content-Type: text/html*; charset=utf-8
 Connection: close
 X-Content-Type-Options: nosniff
 Cache-Control: private, s-maxage=0, max-age=0, must-revalidate
 Vary: Accept-Encoding,X-Forwarded-Proto,Cookie
 Expires: Thu, 01 Jan 1970 00:00:00 GMT
 Last-Modified: Fri, 30 Aug 2013 14:51:54 GMT
 *Location: https://www.wikidata.org/wiki/Special:EntityData/Q1293045.ttl*


 HTTP/1.1 200 OK
 Server: nginx/1.1.19
 Date: Fri, 30 Aug 2013 14:51:55 GMT
 *Content-Type: text/turtle*; charset=UTF-8
 Content-Length: 8388

   --

 Regards,

 Kingsley Idehen  
 Founder  CEO
 OpenLink Software
 Company Web: http://www.openlinksw.com
 Personal Weblog: http://www.openlinksw.com/blog/~kidehen
 Twitter/Identi.ca handle: @kidehen
 Google+ Profile: https://plus.google.com/112399767740508618350/about
 LinkedIn Profile: 

Re: [Dbpedia-discussion] [Dbpedia-developers] Mapping Wikidata properties to DBpedia ones

2013-08-31 Thread Sebastian Hellmann

Hi everybody,
we should focus on features, we can provide:

Major Feature 1:
loading data for SPARQL queries. This is independent from the URIs and 
we might use the Wikidata URIs or new ones.


Major Feature 2:
providing linked data for the data in the store.
If we reuse Wikidata URIs, we will end up having data in the store, 
which is not crawlable via linked data. I see this as an essential 
feature, since we provide for now:

1. flat, easy RDF
2. properties mapped to the DBpedia Ontology
3. wikidata entities typed via the DBpedia Ontology
4. improved datatypes refined for compatability with xsd

Suggesting the use of Wikidata URIs will disallow retrieving:
http://www.wikidata.org/entity/QXXX a dbo:Person .
http://www.wikidata.org/entity/QXXX dbo:birthPlace 
1960-01-01^^xsd:date  .


while this will do:
http://wd.dbpedia.org/entity/QXXX a dbo:Person .
http://wd.dbpedia.org/entity/QXXX dbo:birthPlace 1960-01-01^^xsd:date  .
http://wd.dbpedia.org/entity/QXXX owl:sameAs 
http://www.wikidata.org/entity/QXXX .


I am against losing this feature. Please everybody look at:
https://www.wikidata.org/wiki/Special:EntityData/Q42.ttl
You can find *only* labels and language links, not the cool data.
Furthermore, I doubt that this will be available any time soon. Cleaning 
datatypes is no easy process. Hady is still young, but already quite a 
good and goal-oriented programmer and working overtime, so it is quite 
an investment, which is probably not high on their list.


Failing to provide crawlable linked data will likely result in an effort 
like dbpedialite to fill the gap.
We might shorten wikidata.dbpedia.org to wd.dbpedia.org though or just 
data.dbpedia.org


@Kingsley and JC: do you agree?

--
Sebastian


Am 31.08.2013 09:20, schrieb Dimitris Kontokostas:

Hi Kingsley,

Sorry but I still don't see a clear solution with your suggestion.
Just like in Wikipedia when we see an Infobox_Person we assume that 
the resource is an dbo:Person
we want to do the same in WikiData when we see a P107 Q215627 
http://www.wikidata.org/entity/Q215627 claim
In the 1st case it's an unstructured text to LD the 2nd is an LD2LD 
but to a less complicated and well-known schema (that will make 
existing DBpedia queries compatible to Wikidata)


Thus, When I wrote the triple Q42 a dbo:Person, that triple did not 
came from dbr:Douglas_Adams as you replied but directly from the 
Wikidata claim


Now, does Q42 need to be the original Wikidata resource 
http://www.wikidata.org/entity/Q42 and if yes, how should DBpedia 
publish  dereference these triples?
Or should we use our own domain and make owl:sameAs / 
foaf:primaryTopic links to Wikidata like we did with all Wikipedia 
language editions?


Other suggestions / directions are also welcome of course!

Best,
Dimitris




On Fri, Aug 30, 2013 at 7:45 PM, Kingsley Idehen 
kide...@openlinksw.com mailto:kide...@openlinksw.com wrote:


On 8/30/13 12:25 PM, Dimitris Kontokostas wrote:

Thanks Kingsley,

for now we don't host the data so wikidata.dbpedia.org/resource/
http://wikidata.dbpedia.org/resource/.. does not dereference
anything

lets take an example to recup
Q42 (Douglas Adams), besides the answer to the ultimate question
[1] :) has the following triple
http://www.wikidata.org/entity/Q42
http://www.wikidata.org/entity/P107
http://www.wikidata.org/entity/Q215627

which in our dump *will* be translated to
http://wikidata.dbpedia.org/resource/Q42 owl:sameAs
http://www.wikidata.org/entity/Q42
http://wikidata.dbpedia.org/resource/Q42 rdf:type dbpedia-owl:Person

If I get it right, your suggestion is to generate this triple
directly right?
http://www.wikidata.org/entity/Q42 rdf:type dbpedia-owl:Person

but in this case, when someone opens Q42 he/she will not see out
added triples


Having taken a closer look at the RDF content in WikiData
documents It should be:

http://www.wikidata.org/entity/Q42 foaf:primartyTopic
http://dbpedia.org/resource/Douglas_Adams
http://dbpedia.org/resource/Douglas_Adams .

To be really safe, i.e., not vulnerable to changes relating to how
they evolve handling of entity disambiguation via content
negotiation etc., you can opt to be much more specific about the
RDF document URLs:


http://www.wikidata.org/entity/Q42.nt foaf:primaryTopic
http://dbpedia.org/resource/Douglas_Adams
http://dbpedia.org/resource/Douglas_Adams .
http://www.wikidata.org/entity/Q42.rdf foaf:primaryTopic
http://dbpedia.org/resource/Douglas_Adams
http://dbpedia.org/resource/Douglas_Adams .

That's it, let the Web of Linked Data do the rest :-)


Kingsley.




Cheers,
Dimitris


[1]

http://en.wikipedia.org/wiki/42_%28number%29#The_Hitchhiker.27s_Guide_to_the_Galaxy


On Fri, Aug 30, 2013 at 5:57 PM, Kingsley Idehen
kide...@openlinksw.com mailto:kide...@openlinksw.com wrote:

On 8/29/13 2:45 PM, Hady elsahar 

Re: [Dbpedia-discussion] [Dbpedia-developers] Mapping Wikidata properties to DBpedia ones

2013-08-31 Thread Tom Morris
I'm not going to weigh in on the URI minting, but I did want to correct a
couple of misconceptions.

On Sat, Aug 31, 2013 at 3:20 AM, Dimitris Kontokostas jimk...@gmail.comwrote:


 Just like in Wikipedia when we see an Infobox_Person we assume that the
 resource is an dbo:Person


That's a bad assumption.  Not all Wikipedia articles which contain an
Infobox:Person are about a person.


 we want to do the same in WikiData when we see a P107  
 Q215627http://www.wikidata.org/entity/Q215627claim


P107 is going away.  Don't use it.
http://www.wikidata.org/wiki/Property:P107

Tom
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Re: [Dbpedia-discussion] [Dbpedia-developers] Mapping Wikidata properties to DBpedia ones

2013-08-31 Thread Kingsley Idehen

On 8/31/13 3:20 AM, Dimitris Kontokostas wrote:

Hi Kingsley,

Sorry but I still don't see a clear solution with your suggestion.
Just like in Wikipedia when we see an Infobox_Person we assume that 
the resource is an dbo:Person
we want to do the same in WikiData when we see a P107 Q215627 
http://www.wikidata.org/entity/Q215627 claim
In the 1st case it's an unstructured text to LD the 2nd is an LD2LD 
but to a less complicated and well-known schema (that will make 
existing DBpedia queries compatible to Wikidata)


Thus, When I wrote the triple Q42 a dbo:Person, that triple did not 
came from dbr:Douglas_Adams as you replied but directly from the 
Wikidata claim


Now, does Q42 need to be the original Wikidata resource 
http://www.wikidata.org/entity/Q42 and if yes, how should DBpedia 
publish  dereference these triples?
Or should we use our own domain and make owl:sameAs / 
foaf:primaryTopic links to Wikidata like we did with all Wikipedia 
language editions?


Other suggestions / directions are also welcome of course!

Best,
Dimitris


We have to first understand the Wikidata URIs. Let's use the following:

1. http://www.wikidata.org/entity/Q215627 -- a Document that describes 
a 'Person' class
2. http://www.wikidata.org/entity/Q42  -- a Document that describes 
'Douglas Adams' (an instance of 'Person' class).



The mapping would be as follows:

TBox (Ontology):

## Wikidata RDF document describes a 'Person' class
http://www.wikidata.org/entity/Q215627
http://open.vocab.org/terms/describes 
http://www.wikidata.org/entity/Q215627#this .


## Wikidata 'Person' class is equivalent to DBpedia 'Person' class
http://www.wikidata.org/entity/Q215627#this
owl:equivalentClass dbpedia-owl:Person .


ABox (Assertions):

## Wikidata RDF Document describes 'Douglas Adams' but without explicit 
denotation via a URI
## thus, #this heuristic is used to derive a Linked Data URI for 
'Douglas Adams' from the Wikidata RDF Document URL.


http://www.wikidata.org/entity/Q42
http://open.vocab.org/terms/describes 
http://www.wikidata.org/entity/Q42#this ;

foaf:primaryTopic http://www.wikidata.org/entity/Q42#this .

## derived URI for 'Douglas Adams' is then used as the subject or object 
of an  owl:sameAs relation with the DBpedia URI for 'Douglas Adams'


http://www.wikidata.org/entity/Q42#this
owl:sameAs http://dbpedia.org/resource/Douglas_Adams .


What I've outlined above is what exists right now with regards to the 
RDF documents produced by Wikidata. You don't need to mint new 
wikidata.dbpedia.org URIs .


Kingsley





On Fri, Aug 30, 2013 at 7:45 PM, Kingsley Idehen 
kide...@openlinksw.com mailto:kide...@openlinksw.com wrote:


On 8/30/13 12:25 PM, Dimitris Kontokostas wrote:

Thanks Kingsley,

for now we don't host the data so wikidata.dbpedia.org/resource/
http://wikidata.dbpedia.org/resource/.. does not dereference
anything

lets take an example to recup
Q42 (Douglas Adams), besides the answer to the ultimate question
[1] :) has the following triple
http://www.wikidata.org/entity/Q42
http://www.wikidata.org/entity/P107
http://www.wikidata.org/entity/Q215627

which in our dump *will* be translated to
http://wikidata.dbpedia.org/resource/Q42 owl:sameAs
http://www.wikidata.org/entity/Q42
http://wikidata.dbpedia.org/resource/Q42 rdf:type dbpedia-owl:Person

If I get it right, your suggestion is to generate this triple
directly right?
http://www.wikidata.org/entity/Q42 rdf:type dbpedia-owl:Person

but in this case, when someone opens Q42 he/she will not see out
added triples


Having taken a closer look at the RDF content in WikiData
documents It should be:

http://www.wikidata.org/entity/Q42 foaf:primartyTopic
http://dbpedia.org/resource/Douglas_Adams
http://dbpedia.org/resource/Douglas_Adams .

To be really safe, i.e., not vulnerable to changes relating to how
they evolve handling of entity disambiguation via content
negotiation etc., you can opt to be much more specific about the
RDF document URLs:


http://www.wikidata.org/entity/Q42.nt foaf:primaryTopic
http://dbpedia.org/resource/Douglas_Adams
http://dbpedia.org/resource/Douglas_Adams .
http://www.wikidata.org/entity/Q42.rdf foaf:primaryTopic
http://dbpedia.org/resource/Douglas_Adams
http://dbpedia.org/resource/Douglas_Adams .

That's it, let the Web of Linked Data do the rest :-)


Kingsley.




Cheers,
Dimitris


[1]

http://en.wikipedia.org/wiki/42_%28number%29#The_Hitchhiker.27s_Guide_to_the_Galaxy


On Fri, Aug 30, 2013 at 5:57 PM, Kingsley Idehen
kide...@openlinksw.com mailto:kide...@openlinksw.com wrote:

On 8/29/13 2:45 PM, Hady elsahar wrote:


i guess what we need now is to map between the original
WikiData URIs and their URIs we use in DBpedia under the new
namespace , for example :

http://wikidata.dbpedia.org/resource/Q1293045 owl:sameAs
  

Re: [Dbpedia-discussion] [Dbpedia-developers] Mapping Wikidata properties to DBpedia ones

2013-08-31 Thread Kingsley Idehen

On 8/31/13 8:08 AM, Sebastian Hellmann wrote:

Hi everybody,
we should focus on features, we can provide:

Major Feature 1:
loading data for SPARQL queries. This is independent from the URIs and 
we might use the Wikidata URIs or new ones.


Wikidata URIs as per the mail I just sent in response to Dimitris.



Major Feature 2:
providing linked data for the data in the store.
If we reuse Wikidata URIs, we will end up having data in the store, 
which is not crawlable via linked data.


The #this heuristic gets you around that problem. Thus, the 
follow-your-nose pathways remain intact, modulo any bugs in the actual 
RDF published by Wikidata (e.g., there are some bugs right now re. 
datatypes e.g., xsd:integer missing an r so you have xsd:intege etc.. 
Just typo style bugs in some places).



I see this as an essential feature, since we provide for now:
1. flat, easy RDF
2. properties mapped to the DBpedia Ontology
3. wikidata entities typed via the DBpedia Ontology
4. improved datatypes refined for compatability with xsd


Yes.



Suggesting the use of Wikidata URIs will disallow retrieving:
http://www.wikidata.org/entity/QXXX a dbo:Person .
http://www.wikidata.org/entity/QXXX dbo:birthPlace 
1960-01-01^^xsd:date  .


See my example:

## Wikidata RDF document describes a 'Person' class
http://www.wikidata.org/entity/Q215627
http://open.vocab.org/terms/describes 
http://www.wikidata.org/entity/Q215627#this .


## Wikidata 'Person' class is equivalent to DBpedia 'Person' class
http://www.wikidata.org/entity/Q215627#this
owl:equivalentClass dbpedia-owl:Person .


ABox (Assertions):

## Wikidata RDF Document describes 'Douglas Adams' but without explicit 
denotation via a URI
## thus, #this heuristic is used to derive a Linked Data URI for 
'Douglas Adams' from the Wikidata RDF Document URL.


http://www.wikidata.org/entity/Q42
http://open.vocab.org/terms/describes 
http://www.wikidata.org/entity/Q42#this ;

foaf:primaryTopic http://www.wikidata.org/entity/Q42#this .

## derived URI for 'Douglas Adams' is then used as the subject or object 
of an  owl:sameAs relation with the DBpedia URI for 'Douglas Adams'


http://www.wikidata.org/entity/Q42#this
owl:sameAs http://dbpedia.org/resource/Douglas_Adams .




while this will do:
http://wd.dbpedia.org/entity/QXXX a dbo:Person .
http://wd.dbpedia.org/entity/QXXX dbo:birthPlace 
1960-01-01^^xsd:date  .
http://wd.dbpedia.org/entity/QXXX owl:sameAs 
http://www.wikidata.org/entity/QXXX .


You don't need that, if you follow the pattern outlined in the example 
above. You arrive at the very same place via:


http://www.wikidata.org/entity/Q42#this owl:sameAs 
http://dbpedia.org/resource/Douglas_Adams .


Both URIs resolve, and if owl:sameAs reasoning is applied, you get the 
union based mesh (smush) of the triples describing both of the entities 
participating in the aforementioned relation.





I am against losing this feature. Please everybody look at:
https://www.wikidata.org/wiki/Special:EntityData/Q42.ttl
You can find *only* labels and language links, not the cool data.


Yes, because that's a Turtle document, as per my example.

Furthermore, I doubt that this will be available any time soon. 
Cleaning datatypes is no easy process. Hady is still young, but 
already quite a good and goal-oriented programmer and working 
overtime, so it is quite an investment, which is probably not high on 
their list.


Failing to provide crawlable linked data will likely result in an 
effort like dbpedialite to fill the gap.
We might shorten wikidata.dbpedia.org to wd.dbpedia.org though or just 
data.dbpedia.org


@Kingsley and JC: do you agree?


I agree with the fact that any mapping endeavor MUST keep 
follow-your-nose pattern crawling intact. I also believe we can achieve 
this via #this heuristic which ultimately save time and work in the 
future, one in which Wikidata will get better at publishing RDF based 
documents that bear Linked Data  :-)



Kingsley


--
Sebastian


Am 31.08.2013 09:20, schrieb Dimitris Kontokostas:

Hi Kingsley,

Sorry but I still don't see a clear solution with your suggestion.
Just like in Wikipedia when we see an Infobox_Person we assume that 
the resource is an dbo:Person
we want to do the same in WikiData when we see a P107 Q215627 
http://www.wikidata.org/entity/Q215627 claim
In the 1st case it's an unstructured text to LD the 2nd is an LD2LD 
but to a less complicated and well-known schema (that will make 
existing DBpedia queries compatible to Wikidata)


Thus, When I wrote the triple Q42 a dbo:Person, that triple did not 
came from dbr:Douglas_Adams as you replied but directly from the 
Wikidata claim


Now, does Q42 need to be the original Wikidata resource 
http://www.wikidata.org/entity/Q42 and if yes, how should DBpedia 
publish  dereference these triples?
Or should we use our own domain and make owl:sameAs / 
foaf:primaryTopic links to Wikidata like we did with all Wikipedia 
language editions?


Other suggestions / directions are also 

Re: [Dbpedia-discussion] [Dbpedia-developers] Mapping Wikidata properties to DBpedia ones

2013-08-31 Thread Sebastian Hellmann

Am 31.08.2013 19:58, schrieb Kingsley Idehen:




Suggesting the use of Wikidata URIs will disallow retrieving:
http://www.wikidata.org/entity/QXXX a dbo:Person .
http://www.wikidata.org/entity/QXXX dbo:birthPlace 
1960-01-01^^xsd:date  .


See my example:

## Wikidata RDF document describes a 'Person' class
http://www.wikidata.org/entity/Q215627
http://open.vocab.org/terms/describes 
http://www.wikidata.org/entity/Q215627#this .


## Wikidata 'Person' class is equivalent to DBpedia 'Person' class
http://www.wikidata.org/entity/Q215627#this
owl:equivalentClass dbpedia-owl:Person .


That's a fine pattern for an OWL class mapping.




ABox (Assertions):

## Wikidata RDF Document describes 'Douglas Adams' but without 
explicit denotation via a URI
## thus, #this heuristic is used to derive a Linked Data URI for 
'Douglas Adams' from the Wikidata RDF Document URL.


http://www.wikidata.org/entity/Q42
http://open.vocab.org/terms/describes 
http://www.wikidata.org/entity/Q42#this ;

foaf:primaryTopic http://www.wikidata.org/entity/Q42#this .

## derived URI for 'Douglas Adams' is then used as the subject or 
object of an  owl:sameAs relation with the DBpedia URI for 'Douglas Adams'


http://www.wikidata.org/entity/Q42#this
owl:sameAs http://dbpedia.org/resource/Douglas_Adams .



I could agree for Wikidata URIs with a mapping to a DBpedia URI, but 
what about the remaining
8.948.128 URIs, which do not have such mapping ( 13,266,153 - 4,318,025, 
numbers are not accurate, because of functional pages)


The owl:sameAs Linked Data doesn't work in these cases.

--
Sebastian






while this will do:
http://wd.dbpedia.org/entity/QXXX a dbo:Person .
http://wd.dbpedia.org/entity/QXXX dbo:birthPlace 
1960-01-01^^xsd:date  .
http://wd.dbpedia.org/entity/QXXX owl:sameAs 
http://www.wikidata.org/entity/QXXX .


You don't need that, if you follow the pattern outlined in the example 
above. You arrive at the very same place via:


http://www.wikidata.org/entity/Q42#this owl:sameAs 
http://dbpedia.org/resource/Douglas_Adams .


Both URIs resolve, and if owl:sameAs reasoning is applied, you get the 
union based mesh (smush) of the triples describing both of the 
entities participating in the aforementioned relation.





I am against losing this feature. Please everybody look at:
https://www.wikidata.org/wiki/Special:EntityData/Q42.ttl
You can find *only* labels and language links, not the cool data.


Yes, because that's a Turtle document, as per my example.

Furthermore, I doubt that this will be available any time soon. 
Cleaning datatypes is no easy process. Hady is still young, but 
already quite a good and goal-oriented programmer and working 
overtime, so it is quite an investment, which is probably not high on 
their list.


Failing to provide crawlable linked data will likely result in an 
effort like dbpedialite to fill the gap.
We might shorten wikidata.dbpedia.org to wd.dbpedia.org though or 
just data.dbpedia.org


@Kingsley and JC: do you agree?


I agree with the fact that any mapping endeavor MUST keep 
follow-your-nose pattern crawling intact. I also believe we can 
achieve this via #this heuristic which ultimately save time and work 
in the future, one in which Wikidata will get better at publishing RDF 
based documents that bear Linked Data  :-)



Kingsley


--
Sebastian


Am 31.08.2013 09:20, schrieb Dimitris Kontokostas:

Hi Kingsley,

Sorry but I still don't see a clear solution with your suggestion.
Just like in Wikipedia when we see an Infobox_Person we assume that 
the resource is an dbo:Person
we want to do the same in WikiData when we see a P107 Q215627 
http://www.wikidata.org/entity/Q215627 claim
In the 1st case it's an unstructured text to LD the 2nd is an LD2LD 
but to a less complicated and well-known schema (that will make 
existing DBpedia queries compatible to Wikidata)


Thus, When I wrote the triple Q42 a dbo:Person, that triple did not 
came from dbr:Douglas_Adams as you replied but directly from the 
Wikidata claim


Now, does Q42 need to be the original Wikidata resource 
http://www.wikidata.org/entity/Q42 and if yes, how should DBpedia 
publish  dereference these triples?
Or should we use our own domain and make owl:sameAs / 
foaf:primaryTopic links to Wikidata like we did with all Wikipedia 
language editions?


Other suggestions / directions are also welcome of course!

Best,
Dimitris




On Fri, Aug 30, 2013 at 7:45 PM, Kingsley Idehen 
kide...@openlinksw.com mailto:kide...@openlinksw.com wrote:


On 8/30/13 12:25 PM, Dimitris Kontokostas wrote:

Thanks Kingsley,

for now we don't host the data so
wikidata.dbpedia.org/resource/
http://wikidata.dbpedia.org/resource/.. does not dereference
anything

lets take an example to recup
Q42 (Douglas Adams), besides the answer to the ultimate
question [1] :) has the following triple
http://www.wikidata.org/entity/Q42
http://www.wikidata.org/entity/P107
http://www.wikidata.org/entity/Q215627

  

Re: [Dbpedia-discussion] [Dbpedia-developers] [ANN] [GSoC 2013]: DBpedia Viewer

2013-08-31 Thread Pablo N. Mendes
Great job, folks! It's roundhouse kick-ass!!!

I didn't find the DBpedia Spotlight plug there. Where is it? :)

Cheers,
Pablo


On Fri, Aug 30, 2013 at 9:42 AM, Denis Lukovnikov lukovni...@outlook.comwrote:

 Hi all,


 We're pleased to announce the new (beta) version of the DBpedia Linked
 Data interface page

 as a part of a Google Summer of Code project.

 The new version now features:

 - A revamped Linked Data view

 - Quick filtering of properties and their values

 - Quick Links to important properties

 - Entity search using DBpedia Lookup

 - Text annotation with DBpedia Spotlight

 - previews on hover


 The new DBpedia Viewer is deployed at the Dutch 
 DBpediahttp://nl.dbpedia.org/
 .

 All feedback, comments and thumbs up are welcome :).

 For issues: https://github.com/lukovnikov/dbpedia-vad-i18n/issues

 To check it out, visit http://nl.dbpedia.org/page/Chuck_Norris.

 Greetings,

 Denis, Claus, Dimitris, Sebastian


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