Or specify the GRAPH IRI in a way that is convienient to implement in the
dbpedia release...
On Fri, May 15, 2009 at 3:20 PM, Sid <[email protected]> wrote:
> Lee got it right....
> Kingsley: So the final thing is this... I state again to make it exactly
> clear...As an example...
> The data set http://downloads.dbpedia.org/3.2/en/infobox_en.nt.bz2 has the
> infobox information extracted from various wikis... So If i query in SPARQL
> with : <http://dbpedia.org/resource/Berlin> and specify the data set in
> the triple to be Graph IRI: <derived-from-actual-dataset-source-file-name>
> then I should get the triples only from that data set...
> This should be REALLY useful... users will not not have to do a LOT of
> extra processing....!
>
> Regards
> Sid
>
>
> On Fri, May 15, 2009 at 2:32 PM, Kingsley Idehen
> <[email protected]>wrote:
>
>> Lee Feigenbaum wrote:
>>
>>> Kingsley Idehen wrote:
>>>
>>>> Sid wrote:
>>>>
>>>>> Well when i query a URI in SPARQL I generally get all the "things" that
>>>>> are related to the resource(unless I really narrow it down).
>>>>> It would be nice that if I am loking at infoboxes for resources like
>>>>> http://dbpedia.org/page/Berlin I shouldnt first get all the
>>>>> information LINKED to that URI...If i want only infobox data for this
>>>>> reosurce only, then querying then mentioning the infobox data set clause
>>>>> would give me that(Which is not the same as specyfying a RDF graph since
>>>>> datasets arent really there I presume and have been converted to RDF) ....
>>>>>
>>>>> The only way to do this right now is to download some data in the local
>>>>> HDD and convert it to RDF and query the data :).... Is there a simple fix
>>>>> to
>>>>> just narrow this and get what I want?(Perhaps an extra attribute related
>>>>> to
>>>>> each resource that tells me about the dataset also? and something like in
>>>>> the SPARQL END POINT )
>>>>>
>>>> Are you asking for a URI like:
>>>> http://dbpediar.org/resource/Berlin/<some-property>
>>>> ? If not, please be clearer, this is a database, and it has a query
>>>> language, and so you should be able to query and filter (including
>>>> inference
>>>> rules exploitation).
>>>>
>>>
>>> Seems clear to me :) Sid is asking how he can query one of the specific
>>> datasets listed at the URI in his first message:
>>>
>>> http://wiki.dbpedia.org/DatasetsLoaded?v=ttm
>>>
>> Each data set should map to a Graph IRI, at least those where my
>> guidelines re. data partitioning with the Quad Store. Naturally, this
>> guideline wasn't applied to the live DBpedia instance since its quite old.
>> More recent loads (e.g. the lod.openlinksw.com instance) are based on
>> this approach (but not functional it seems). We should have:
>>
>> Group: <http://dbpedia.org>
>> Graph IRI: <derived-from-actual-dataset-source-file-name>
>>
>> I am not currently seeing that in the VoiD graph, so I'll look into what's
>> amiss here re. external access to this data via SPARQL (worst case DESCRIBE
>> <Graph-IRI> should reveal) . You should be able to get at the Graph Group
>> and the Graph IRIs (within groups) .
>>
>> Once this is resolved, what you see in the lod instance will make its way
>> to DBpedia live after the next update, and DBpedia2 in the interim.
>>
>>
>> Kingsley
>>
>>
>>
>>> ...without getting triples from some of the other datasets. (In sid's
>>> case, he's interested only in triples coming from the infobox part of the
>>> dataset.)
>>>
>>> Lee
>>>
>>>
>>>> Kingsley
>>>>
>>>>>
>>>>>
>>>>>
>>>>> Thanks and regards
>>>>>
>>>>> On Fri, May 15, 2009 at 10:57 AM, Kingsley Idehen <
>>>>> [email protected] <mailto:[email protected]>> wrote:
>>>>>
>>>>> Lee Feigenbaum wrote:
>>>>>
>>>>> Kingsley Idehen wrote:
>>>>>
>>>>> Georgi Kobilarov wrote:
>>>>>
>>>>> Hello Sid,
>>>>>
>>>>> AFAIK we don't expose the data in named
>>>>> graphs, so you
>>>>> can't query the public sparql endpoint for triples
>>>>> from a particular dataset.
>>>>>
>>>>> At least not that I was aware of.
>>>>> Kingsley?
>>>>>
>>>>> http://dbpedia2.openlinksw.com:8895/void/Dataset will
>>>>> expose the Graph IRIs.
>>>>> or
>>>>> http://lod.openlinksw.com/void/Dataset (follow the DBpedia
>>>>> Graph Group).
>>>>>
>>>>>
>>>>> (asking on sid's behalf since I was trying to help him/her out
>>>>> on IRC)
>>>>>
>>>>> I don't see anything listed there that leaps off the page as
>>>>> being restricted to the infobox triples, which I believe is
>>>>> the particular dataset that sid is interested in. The URIs on
>>>>> http://dbpedia2.openlinksw.com:8895/void/Dataset seem to be
>>>>> more content-oriented than dataset oriented.
>>>>>
>>>>>
>>>>> The first level is the Graph Group, then within the Graph Group
>>>>> you have IRIs. I am assuming he is seeking specific graph names?
>>>>>
>>>>> Kingsley
>>>>>
>>>>>
>>>>> Lee
>>>>>
>>>>>
>>>>> Kingsley
>>>>>
>>>>> Best,
>>>>>
>>>>> Georgi
>>>>>
>>>>> --
>>>>> Georgi Kobilarov
>>>>>
>>>>> Freie Universität Berlin
>>>>>
>>>>> www.georgikobilarov.com <http://www.georgikobilarov.com
>>>>> >
>>>>>
>>>>> *From:* Sid [mailto:[email protected]
>>>>> <mailto:[email protected]>]
>>>>> *Sent:* Thursday, May 14, 2009 2:19 AM
>>>>> *To:* [email protected]
>>>>> <mailto:[email protected]>
>>>>> *Subject:* [Dbpedia-discussion] Querying data sets on
>>>>> dbpedia
>>>>>
>>>>> Hi,
>>>>> I need to know how to just query a specific DBPedia
>>>>> data set of the many mentioned here
>>>>> http://wiki.dbpedia.org/DatasetsLoaded?v=ttm. I am not
>>>>> getting any success using the from clause. Is there a
>>>>> way to do that?
>>>>>
>>>>>
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>>>>> _______________________________________________
>>>>> Dbpedia-discussion mailing list
>>>>> [email protected]
>>>>> <mailto:[email protected]>
>>>>>
>>>>> https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> Regards,
>>>>>
>>>>> Kingsley Idehen Weblog:
>>>>>
>>>>> http://www.openlinksw.com/blog/~kidehen<http://www.openlinksw.com/blog/%7Ekidehen>
>>>>> <http://www.openlinksw.com/blog/%7Ekidehen>
>>>>> President & CEO OpenLink Software Web:
>>>>> http://www.openlinksw.com
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
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>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>
>>
>> --
>>
>>
>> Regards,
>>
>> Kingsley Idehen Weblog:
>> http://www.openlinksw.com/blog/~kidehen<http://www.openlinksw.com/blog/%7Ekidehen>
>> President & CEO OpenLink Software Web: http://www.openlinksw.com
>>
>>
>>
>>
>>
>
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