Ontologies

> reading: Chapter 4 "Incorporating Semantics", Semantic Web Programming, J. Hebeler et al. Open World and Closed World Assumption Open world assumption (OWA) means that information that is not present in a certain domain is not considered to be false. Just because it's not there, does not mean it's wrong. Closed world assumption (CWA) is… Continue reading Ontologies

Modelling RDF

> reading: Chapter 3 "Modelling Information", Semantic Web Programming, J. Hebeler et al. Very briefly: there are three ways of writing information in RDF-style. Most likely there are much more ways of writing, or better representing, infortmation with RDF. But the following three are the most popular ones. The first one is RDF/XML, which is… Continue reading Modelling RDF

RDF Primer

> reading the RDF Primer @ http://www.w3.org/TR/rdf-primer/ This Primer is so long - I couldn't make it to the end of the document, yet. The more I read the more complex this whole topic seem to become. Till paragraph 2.4 it explains the basic structure of RDF. Data or any information is formed as triples,… Continue reading RDF Primer