Hi Kingsley,
Because we got a couple of similar mails some time ago,
do you think that we should mention this in the DBpedia wiki as a
disclaimer somewhere?
(like here for instance http://wiki.dbpedia.org/OnlineAccess)
Best,
Dimitris
On Mon, Jan 28, 2013 at 11:36 PM, Kingsley Idehen <kide...@openlinksw.com>wrote:
> On 1/28/13 4:26 PM, Andrea Di Menna wrote:
>
> Thanks Kingsley.
>
> Is the same reason why all the resources are not listed in the
> http://dbpedia.org/page/G%C3%BCtersloh page as reverse
> dbpedia-owl:birthPlace property?
>
>
> Yes, since this URL will give varying results, subject what other
> connections to doing with the DBMS:
>
> http://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&query=prefix+dbpedia-owl%3A+%3Chttp%3A%2F%2Fdbpedia.org%2Fontology%2F%3E%0D%0Aselect+%3Fs+where+%7B%3Fs+dbpedia-owl%3AbirthPlace+%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FG%25C3%25BCtersloh%3E%7D&format=text%2Fhtml&timeout=0&debug=on
>
> Query Definition:
>
> http://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&qtxt=prefix+dbpedia-owl%3A+%3Chttp%3A%2F%2Fdbpedia.org%2Fontology%2F%3E%0D%0Aselect+%3Fs+where+%7B%3Fs+dbpedia-owl%3AbirthPlace+%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FG%25C3%25BCtersloh%3E%7D&format=text%2Fhtml&timeout=0&debug=on
>
> LOD Cloud:
>
> http://lod.openlinksw.com/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&query=prefix+dbpedia-owl%3A+%3Chttp%3A%2F%2Fdbpedia.org%2Fontology%2F%3E%0D%0Aselect+%3Fs+where+%7B%3Fs+dbpedia-owl%3AbirthPlace+%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FG%25C3%25BCtersloh%3E%7D&format=text%2Fhtml&timeout=0&debug=on
>
> Kingsley
>
>
> Thanks
>
> 2013/1/28 Kingsley Idehen <kide...@openlinksw.com>
>
>> On 1/28/13 3:53 PM, Andrea Di Menna wrote:
>>
>> Hi Kingsley,
>>
>> just wanted to add that sometimes.
>>
>> The same query:
>>
>>
>> http://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&query=select+%3Fperson+where+%7B%3Fperson+%3Chttp%3A%2F%2Fdbpedia.org%2Fontology%2FbirthPlace%3E+%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FG%25C3%25BCtersloh%3E+%7D&format=text%2Fhtml&timeout=2000
>>
>> from time to time returns only 5 results (which are the ones shown here
>> http://dbpedia.org/page/G%C3%BCtersloh )
>>
>> When the query returns 11 elements they are:
>>
>> http://dbpedia.org/resource/Hans_Werner_Henze
>> http://dbpedia.org/resource/Diana_Amft
>> http://dbpedia.org/resource/Ludwig_M%C3%BCller_(theologian)<http://dbpedia.org/resource/Ludwig_M%C3%BCller_%28theologian%29>
>> http://dbpedia.org/resource/Hanns-Heinrich_Lohmann
>> http://dbpedia.org/resource/Andy_Duguid
>> http://dbpedia.org/resource/Wolf_Hilbertz
>> http://dbpedia.org/resource/Simon_Gosejohann
>> http://dbpedia.org/resource/Friedrich_Daniel_von_Recklinghausen
>> http://dbpedia.org/resource/Theodor_Rumpel_(surgeon)
>> http://dbpedia.org/resource/Thorsten_Stuckmann
>> http://dbpedia.org/resource/Annabel_J%C3%A4ger
>>
>> By checking the first one, you can see that it has
>> http://dbpedia.org/page/G%C3%BCtersloh as dbpedia-owl:birthPlace.
>> But this is not shown in the http://dbpedia.org/page/G%C3%BCtersloh page
>> as a reverse property.
>>
>> Do you know what is wrong?
>>
>>
>> Basic SPARQL endpoint is protected by query cost controls based on the
>> backed end machine config etc.. That's why I used the
>> lod.openlinksw.cominstance as an example since that's a bigger machine setup
>> with the same
>> data.
>>
>> See:
>> http://dbpedia.org/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FG%25C3%25BCtersloh--
>> this has more results because it makes use of DBMS hosted cursors for
>> scrolling through the dataset .
>>
>> You can use OFFSET and LIMIT to page through the data. I am sure there
>> are some old posts about these matters re. DBpedia's SPARQL endpoint.
>>
>> Kingsley
>>
>>
>> Regards
>>
>> 2013/1/28 Kingsley Idehen <kide...@openlinksw.com>
>>
>>> On 1/28/13 3:15 PM, Daniel Naber wrote:
>>>
>>>> Hi,
>>>>
>>>> I'd like to find all persons born in a given city. At
>>>> http://de.dbpedia.org/page/G%C3%BCtersloh I see about 96 persons. When
>>>> I
>>>> query with Sparql, I only get 11. The query I use is this:
>>>>
>>>> select ?person where {?person <http://dbpedia.org/ontology/birthPlace>
>>>> <http://dbpedia.org/resource/G%C3%BCtersloh>}
>>>>
>>>> The endpoint I use is http://dbpedia.org/sparql. How can I get all the
>>>> results that are shown on the web page?
>>>>
>>>> Regards
>>>> Daniel
>>>>
>>>>
>>> Try:
>>>
>>> http://lod.openlinksw.com/sparql?default-graph-uri=&query=select+distinct+%3Fperson+where+%7B%3Fperson+%3Chttp%3A%2F%2Fdbpedia.org%2Fontology%2FbirthPlace%3E+%0D%0A%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FG%25C3%25BCtersloh%3E%7D&format=text%2Fhtml&timeout=30000&debug=on
>>>
>>> Query Definition:
>>>
>>> http://lod.openlinksw.com/sparql?default-graph-uri=&qtxt=select+distinct+%3Fperson+where+%7B%3Fperson+%3Chttp%3A%2F%2Fdbpedia.org%2Fontology%2FbirthPlace%3E+%0D%0A%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FG%25C3%25BCtersloh%3E%7D&format=text%2Fhtml&timeout=30000&debug=on
>>>
>>> --
>>>
>>> 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: http://www.linkedin.com/in/kidehen
>>>
>>>
>>>
>>>
>>>
>>>
>>>
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>>>
>>
>>
>> --
>>
>> 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: http://www.linkedin.com/in/kidehen
>>
>>
>>
>>
>
>
> --
>
> 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: http://www.linkedin.com/in/kidehen
>
>
>
>
>
> ------------------------------------------------------------------------------
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> with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft
> MVPs and experts. ON SALE this month only -- learn more at:
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--
Kontokostas Dimitris
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