On 14/03/2008, S Page <[EMAIL PROTECTED]> wrote: > Peter Ansell wrote: > > > 1. Why does the semantic mediawiki ontology not use dublin core to > > subclass its essential properties? > > > I'm not sure what you mean. SMW doesn't impose a particular ontology on > annotations (except for its representation of MediaWiki categories). > However, you can "import" dc terms and tie SMW properties to them so > that when exported as RDF they use the dc ontology. E.g. an article > about a research paper that says [[Has author:John Doe]] can export RDF > <dc:creator ...>John Doe</dc:creator> > instead of > <property:creator ...>John Doe</property:Last_page>
I wouldn't say that dc elements is imposing a particular ontology onto anyone, it has no side effects, only extra possibilities that are useful for querying. Just wondering why one would not want to use it, instead making up a basic vocabulary based on Subjects and Wikipages when both have been described by skos and dublin core elements/terms respectively. Wikipage isn't really an annotation anyway, its a basic part of the document metadata. I would say the subject has a wikipage, which can have dublin core metadata from the system. I am not referring to something that you could create an annotation about easily. Just wondering whether there were any efforts to exploit the fact that semantic mediawiki is a wiki, and has the basic document revision/provenance/contributor/creator metadata elements that can be best described by the system. > > 2. What is being done to make revision histories integrate with the > > wikipage metadata? Use of FOAF in this area maybe? > > > SMW annotations are not about the wiki article, they're about the thing > described by the article. See > http://semantic-mediawiki.org/swivt/1.0#Subject > > There's already MediaWiki code to export article information, see > http://meta.wikimedia.org/wiki/RDF_metadata > http://www.mediawiki.org/wiki/Extension:RDF > However, this code seems disabled in most installations, e.g. > http://ontoworld.org/wiki.phtml?title=Berlin&action=dublincore > > I'm no expert on this stuff, please clarify. It would be interesting to utilise MwRdfDcmes from Rdf.php as a part of the actual annotation that semantic mediawiki outputs, with the option to turn it off with __NODCMES__ or something similar if the page author did not want the information publicised. It could also be possible if one wanted to dissociate the subject of the page from the metadata about the page to have these in two different forms, but it would still be wise to link to them from both places, ie, say where the document metadata can be found in the semantic subject stuff and say where the subject of the page can be found on the document metadata. Just some thoughts. Might get in and hack something up when I get a chance. Peter ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Semediawiki-devel mailing list Semediawiki-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/semediawiki-devel
