Product Types Ontology
"Andrew S. Townley" <[email protected]>
| Newsgroups | gmane.text.xml.xtm.general |
|---|---|
| Message-ID | <[email protected]> |
Hi Folks, I came across this a few minutes ago and was curious if anyone else had seen it. It looks like they're trying to create another set of PSIs based on Wikipedia. Not sure what I think about it, but they do make a good point about DBPedia: > What is the difference to DBpedia? > > DBpedia extracts data, e.g. facts and individuals from Wikipedia, and makes those available as a giant RDF representation. This works well for Wikipedia entries that represent individuals, e.g. John F. Kennedy, the city of Paris, Germany as a country, etc. Unfortunately, you cannot use DBpedia identifiers to indicate class membership, because they have a strange semantics. For instance, the DBpedia entry for "Soldering_iron", > > http://dbpedia.org/resource/Soldering_iron > is defined to be an instance (!!) of the class > > http://dbpedia.org/class/yago/ElectronicsWorkTools > That means, DBpedia says that the entity is an actual soldering iron, instead of being the topic "soldering iron" or a class. > > So the following is not possible: > > foo:mySolderingIron rdf:type <http://dbpedia.org/resource/Soldering_iron>. > Because, that would state that foo:mySolderingIron was an instance of something that is a yago:Soldering_iron. > > So DBpedia URIs cannot be used for modeling the type of real-world objects, in particular in the context of theGoodRelations ontology, because > > • they lack a suitable semantics for being used as classes, and > • they are not valid OWL DL. > For the majority of the 3.5 million Wikipedia entries, DBpedia offers a very useful representation for the Semantic Web. However, it does not provide a useful RDF representation for the more than 300,000 Wikipedia that describe types of objects, while we urgently need more authoritative class definitions for very specific things. Might be useful to some of you here (if at the very least to get sucked into subj3ct if it isn't there already). Website: http://www.productontology.org/ Cheers, ast -- Andrew S. Townley <[email protected]> http://atownley.org