Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-15 Thread Alexandru Todor
The German chapter is working on ways to automatically import axioms in the mappings wiki, so of course this is an option too. We can more or less do this since we are already inserting labels into the ontology in batch mode [1]. It would be quite helpful for us if someone interested in

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-15 Thread Kingsley Idehen
On 4/15/14 1:06 AM, Dimitris Kontokostas wrote: Kingsley's approach is one way to go but I think we should focus on fixing the ontology in the source, which is the mappings wiki. The German chapter is working on ways to automatically import axioms in the mappings wiki, so of course this is an

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-14 Thread Kingsley Idehen
On 4/13/14 8:32 PM, Patel-Schneider, Peter wrote: On Apr 11, 2014, at 11:58 AM, Kingsley Idehen kide...@openlinksw.com wrote: On 4/11/14 2:12 PM, Patel-Schneider, Peter wrote: This proposal illustrates one of the major problems with the DBpedia ontology - triples check in but they never

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-14 Thread Kingsley Idehen
On 4/14/14 7:02 AM, Kingsley Idehen wrote: How can I use SPARQL 1.1 to change the DBpedia ontology? You can use SPARQL 1.1 (from your SPARQL 1.1 compliant application) to generate triples is a named graph local to your application, based solutions returned to you from the public SPARQL

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-14 Thread Patel-Schneider, Peter
Aaah, sure I can use SPARQL 1.1 to massage triple stores, including triple stores that use IRIs from the DBpedia ontology. In this way, I could modify the results, perhaps to make them look like certain stuff had been removed from the DBpedia ontology, although this process can result in

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-14 Thread Kingsley Idehen
On 4/14/14 12:07 PM, Patel-Schneider, Peter wrote: Aaah, sure I can use SPARQL 1.1 to massage triple stores, including triple stores that use IRIs from the DBpedia ontology. In this way, I could modify the results, perhaps to make them look like certain stuff had been removed from the

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-14 Thread Dimitris Kontokostas
Kingsley's approach is one way to go but I think we should focus on fixing the ontology in the source, which is the mappings wiki. The German chapter is working on ways to automatically import axioms in the mappings wiki, so of course this is an option too. I think you already pointed out most of

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-13 Thread Dimitris Kontokostas
Hello, Regarding class usage, the Dutch chapter does a great job already and Magnus' query returns no results;) [1] This means that all classes are needed at the moment. Regarding the changes, I am also in favor to move forward and fix all inconsistencies. Let's start already with the obvious

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-13 Thread Patel-Schneider, Peter
On Apr 11, 2014, at 11:58 AM, Kingsley Idehen kide...@openlinksw.com wrote: On 4/11/14 2:12 PM, Patel-Schneider, Peter wrote: This proposal illustrates one of the major problems with the DBpedia ontology - triples check in but they never check out. Sorta, because of the misconception that

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-11 Thread Magnus Knuth
Hello Peter, thank you very much for your inputs. The state of the DBpedia ontology is certainly an issue. You can register at [1], ask for editing rights, and go on and make your changes. I'd also feel not quite well performing major changes or removing classes without some discussion, since

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-11 Thread Marco Fossati
On 4/11/14, 11:47 AM, Magnus Knuth wrote: Maybe, we could organize an ontology enhancement and guidelines workshop at the next DBpedia Community Meeting in Leipzig [2]. +1 -- Marco Fossati http://about.me/marco.fossati Twitter: @hjfocs Skype: hell_j

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-11 Thread Kingsley Idehen
On 4/11/14 5:47 AM, Magnus Knuth wrote: Hello Peter, thank you very much for your inputs. The state of the DBpedia ontology is certainly an issue. You can register at [1], ask for editing rights, and go on and make your changes. I'd also feel not quite well performing major changes or

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-11 Thread Kingsley Idehen
On 4/11/14 2:12 PM, Patel-Schneider, Peter wrote: This proposal illustrates one of the major problems with the DBpedia ontology - triples check in but they never check out. Sorta, because of the misconception that SPARQL is steal Read-Only. I spend a good chunk of my day writing SPARQL 1.1

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-10 Thread Patel-Schneider, Peter
On Apr 10, 2014, at 6:14 AM, Marco Fossati hell.j@gmail.com wrote: Hi Peter, Thank you for your detailed report. The DBpedia ontology is (a) crowdsourced and (b) follows a data-driven approach. Classes and properties are mainly derived from the actual data coming from different

Re: [Dbpedia-discussion] A quick analysis of the classes in the DBpedia ontology

2014-04-10 Thread Aldo Gangemi
Hi, I think that Peter has good reasons to complain on the current status of the DBpedia ontology :) But besides debatable choices on names, I’d concentrate on the main issue, which is the data-grounding of the ontology. The major example is that there is no systematic checking of the relation