Hi, I've been looking at the people in dbpedia and have some questions about how resources are/aren't assigned particular types, and how data is generated for the data dumps & for the dbpedia live instance. I've highlighted the questions separate from my investigations.
While there are a lot of different sub-classes for "person", there seem to be three primary classes used to describe people: * foaf:Person * dbpedia-owl:Person * yago:Person100007846 Firstly, I can see that dbpedia-owl:Person is defined to be an equivalent class to foaf:Person so I had naively expected every foaf:Person to also be a dbpedia-owl:Person. But this doesn't seem to be the case. For example: http://dbpedia.org/resource/Sir_John_Acton,_6th_Baronet http://dbpedia.org/resource/Louis_Royer In both cases, these resources have types of yago:Person100007846 & foaf:Person but not dbpedia-owl:Person. Q1: how can someone people a foaf:Person but not a dbpedia-owl:Person? Secondly, there are people who have only the type yago:Person100007846: http://dbpedia.org/resource/Claus_Sluter Q2: how can someone be a yago:Person100007846 but not have the other two types? Trying to dig a little deeper I looked at the wikipedia page for Claus Sluter. It appears that the page uses the Persondata template, which includes a date of death: http://en.wikipedia.org/w/index.php?title=Claus_Sluter&action=edit I compared that to another artist, Louis Royer which also uses the Persondata template: http://en.wikipedia.org/w/index.php?title=Louis_Royer&action=edit That resource *is* defined as a foaf:Person. So I'm confused why both of these resources don't have a type of foaf:Person. The only difference I can see is that there's also a birthdate for that person. Q3: is the mapping to specific types sensitive to data in the templates? Any help would be greatly appreciated. Several times recently I've struggled to reliably query for people in dbpedia and it'd be great to get some of the inconsistencies identified/explained. Cheers, L. -- Leigh Dodds Product Lead, Kasabi Mobile: 07850 928381 http://kasabi.com http://talis.com Talis Systems Ltd 43 Temple Row Birmingham B2 5LS ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct _______________________________________________ Dbpedia-discussion mailing list Dbpedia-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
