SPARQL defines several query forms: SELECT, CONSTRUCT, ASK and DESCRIBE. While the first three of these have well-defined semantics, the DESCRIBE query form is more of a tool for g …

What class for rdf:type would you use for resources that are representations or "records" for other resources? For example, New York Times has a resource for "John Cage" (http://d …

Named Graphs have thus far served a very useful purpose (esp. in SPARQL) for supporting notions of provenance into systems which want to store and track data from multiple sources. …

My current project requires the integration of an aggregation platform and RDF triple store for semantic indexing and graphing. Given that Drupal 7 has RDF in its core and it is a …

Is there a serious, complete (i.e. features, APIs, standard compliance, performances, support, documentation, extensions|contributions, etc.), up-to-date, unbiased (I am not. :-)), …

Are there RDF versions of the XML Schema Datatypes and XPath Functions namespaces available or has anyone created these already? I ask because I'm writing an application where I r …

I have observed that most large and useful vocabularies are very simplistic in the sense of defining classes. Most concepts are modelled as primitive classes. There is little expre …

Are there any generic graph based graphical viewers of RDF data that query and retrieve result sets via SPARQL endpoints? I'm thinking something like Gruff but not limited to an A …

eg. i want to find out if there's a existing term for 'like' (as in facebook like). where do i start? is there any kind of listing or directory? thanks :)

Hi, I am looking for a library that can generate Java classes from a given RDF ontology. (question asked previously here). I have found tools such as RDFReactor and RDF2Java, but …

I would like to establish a list of ontologies/vocabularies that match the following criteria: they are fully documented, that is, there exists a documentation online that descri …

I am looking for a SPARQL 1.1 implementation. Any pointers? Thanks

I have come across atleast three different ones: base IRI: http://example.com/owl/families entity :Person reference to the :Person class (the full IRI will be http://ex …

I thought I once ran into an open source project that allows you to store RDF in SOLR, but I can't recall the project. I found a Drupal RDF plugin, but that's not it. It might be …

I saw this http://esw.w3.org/SemanticWebTools#jena but I don't think it's structured. @prefix tico: <http://www.semanticoverflow.com/tools/> :semanticwebTool a owl …