Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-27 Thread baran_H
Hello Mitko, i think it is Curran's test-query and aims all properties, and not only dbpedia-onto prop's which are defined in the dataset, but anyway i think we take it only as a test-query to understand how the engine works, would i say... Baran.

Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-26 Thread baran_H
On Tue, 24 May 2011 19:16:13 +0200, Kingsley Idehen kide...@openlinksw.com wrote: On 5/24/11 1:08 PM, Curran Kelleher wrote: Greetings, The problem remains, the following query doesn't execute on the public DBPedia endpoint

Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-26 Thread baran_H
On Thu, 26 May 2011 22:09:02 +0200, Kingsley Idehen kide...@openlinksw.com wrote: On 5/26/11 3:36 PM, baran_H wrote: LIMIT doesn't simply the Distinct computation. It simply limits the resultset size. Dear K. Idehen, i see

Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-26 Thread Kingsley Idehen
On 5/26/11 5:35 PM, baran_H wrote: Without 'distinct' it does work: select ?property where { ?s ?property ?o. } limit 1 Why might this be? So you are asserting that for a given data space hosting N named graphs (named collections of triples) : select ?property where { ?s

Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-26 Thread Curran Kelleher
Hi Kingsley, Specifically, each solution that binds the same variables to the same RDF terms as another solution is eliminated from the solution set. This sounds like a first encounter would be added to the result set, and any subsequent encounters would simply not be added to the result set.

Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-24 Thread Mohamed Morsey
Hi Sarasi, I've performed that query with limit 1000, and it worked on one of our local endpoints, and it ended within 3 minutes. So I guess that the maximum time allowed for a query on the official endpoint is relatively low, but the query itself is executable with limit. Hope that helps. --

Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-24 Thread Kingsley Idehen
On 5/24/11 8:30 AM, Mohamed Morsey wrote: Hi Sarasi, I've performed that query with limit 1000, and it worked on one of our local endpoints, and it ended within 3 minutes. So I guess that the maximum time allowed for a query on the official endpoint is relatively low, but the query itself is

Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-24 Thread Kingsley Idehen
On 5/24/11 1:08 PM, Curran Kelleher wrote: Greetings, The problem remains, the following query doesn't execute on the public DBPedia endpoint http://dbpedia.org/snorql/?query=select+distinct+%3Fproperty+where+%7B%0D%0A+%3Fs+%3Fproperty+%3Fo.%0D%0A%7D+limit+1, even with a limit: select

Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-24 Thread Curran Kelleher
Hi Kingsley, Thanks for your clarification, but I don't understand why 'first encounter != distinct'. I was thinking that DISTINCT just causes duplicate solutions to be excluded from the result set, just like DISTINCT in SQL. The SPARQL reference states

Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-24 Thread Kingsley Idehen
On 5/24/11 3:33 PM, Curran Kelleher wrote: Hi Kingsley, Thanks for your clarification, but I don't understand why 'first encounter != distinct'. I was thinking that DISTINCT just causes duplicate solutions to be excluded from the result set, just like DISTINCT in SQL. Yes, but you are

[Dbpedia-discussion] extract all properties in DBpedia

2011-05-23 Thread Sarasi Lalithsena
Hi, I want to extract all properties from the DBpedia data set and I tried the following query but it did not work. I even tried to limit the results but still it did not work as well. select distinct ?property where { ?s ?property ?o . } I have the properties defined in the DBpedia

Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-23 Thread Sebastian Hellmann
Hi, the properties in the namespace http://dbpedia.org/ontology will all be included in the dbpedia ontology. The others can be found here: http://wiki.dbpedia.org/Downloads36 http://downloads.dbpedia.org/3.6/en/infobox_property_definitions_en.nt.bz2 The query you mentioned:

Re: [Dbpedia-discussion] extract all properties in DBpedia

2011-05-23 Thread Roberto Mirizzi
Il 23/05/2011 17:44, Sarasi Lalithsena ha scritto: Hi, I want to extract all properties from the DBpedia data set and I tried the following query but it did not work. I even tried to limit the results but still it did not work as well. select distinct ?property where { ?s ?property