As I said, an IRI is basically a URI that may contain non-ASCII characters. Also, every valid URI is also a valid IRI, but not vice versa. http://dbpedia.org/resource/München is an IRI, but not a valid URI, because "ü" is not an ASCII character. The corresponding URI is http://dbpedia.org/resource/M%C3%BCnchen - the "ü" has been escaped. Note that in RDF, these two identifiers aren't equivalent - they do not identify the same resource.
On 2 May 2014 17:44, Luciane Monteiro <luciane....@gmail.com> wrote: > Thank you for the answer. Can you give me an example of an URI and a IRI? I > stil didn't understand it clearly... > > Thank you again. > > > 2014-05-02 10:56 GMT-03:00 Jona Christopher Sahnwaldt <j...@sahnwaldt.de>: > >> "URI reference" was another name for IRI. An IRI is basically a URI >> that may contain non-ASCII characters. >> >> See the (outdated) RDF 1.0 spec: >> >> http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/#section-Graph-URIref >> >> If I'm not mistaken, the term "URI reference" was used in RDF 1.0 >> because the RFC for IRIs was not finished yet. RDF 1.1 only uses the >> term "IRI". >> >> A namespace URI - or more precisely namespace IRI - is the prefix >> shared by a certain set of RDF IRIs, e.g. >> "http://dbpedia.org/resource/";. Quote from the RDF 1.1 spec: >> "Namespace IRIs and namespace prefixes are not a formal part of the >> RDF data model. They are merely a syntactic convenience for >> abbreviating IRIs." >> >> http://www.w3.org/TR/rdf11-concepts/#dfn-namespace-iri >> >> Hope that helps. >> >> JC >> >> >> On 1 May 2014 21:49, Luciane Monteiro <luciane....@gmail.com> wrote: >> > What's the exact difference between a URI, a URIref and a namespace URI? >> > >> > Thank you! >> > >> > >> > ------------------------------------------------------------------------------ >> > "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE >> > Instantly run your Selenium tests across 300+ browser/OS combos. Get >> > unparalleled scalability from the best Selenium testing platform >> > available. >> > Simple to use. Nothing to install. Get started now for free." >> > http://p.sf.net/sfu/SauceLabs >> > _______________________________________________ >> > Dbpedia-discussion mailing list >> > Dbpedia-discussion@lists.sourceforge.net >> > https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion >> > > > ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Dbpedia-discussion mailing list Dbpedia-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
