(Following up only to semediawiki-user) > So the basic question is: *how can I get the Semantic Media Wiki to > distinguish different meanings of 'Catagory' that OWL supports and that > I need* given they seem to be all conflated in SMW.
Categories aren't conflated in SMW, they're conflated in MediaWiki, because people use them loosely and inexactly as they make up category hierarchies and assign them. As has been discussed on semediawiki-user a few times, SMW's RDF Export assigns very specific meanings to categories * an article with a category has <rdf:type> of that category * a category with a category has <rdfs:subClassOf> of that category (with a distinction between the pages and the "things" they describe). These are correct semantics for most usage but it's easy to find other usage. If you care, I think you have a few choices: 1. Change pages that don't match these semantics to use different relations, such as "is a kind of" or "narrows" instead of Category. You can use http://ontoworld.org/wiki/Help:Import_vocabulary to get RDF Export to export these relations with names from external ontologies. The downside is you lose the browsing and navigation of category hierarchies that MediaWiki provides, and the nested searching of subcategories that SMW semantic search provides. (It would be nice if SMW semantic search could generalize its nested searching of subcategories so that searching on any transitive property would do a similar recursive search.) 2. Keep using Category, but add SMW annotations to unusual articles and categories to express the different semantics. You'd have to modify SMW_SpecialExportRDF.php to pay attention to the additional annotation and export differently. 3. Modify MediaWiki and SMW to have additional namespaces that work similar to Category but with your desired semantics. In any approach, good luck coming up with names that make sense to your wiki's users ;-) . Regards, -- =S ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Semediawiki-user mailing list Semediawiki-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/semediawiki-user
