What would be the good way of representing the date of start and end of employment for a person? Use Cases: Mr Smith has been employed by Acme Inc. from 2009-07-06 to 2010-06-05 …

What are the popular free/paid .net based RDF stores?

I'm looking snippet or list with the most common XML namespace prefixes, and their corresponding base URL:s (like for rdf, rdfs, xsd, owl, foaf and the like), for easy copy and pas …

Hi, I know there is a command in Protege' 3.4 telling you if your OWL ontology is Lite or DL or Full (Tools menu > Determine OWL sublanguage). Does anybody know of a tool telling …

Where can I find a clear conceptual/entity model for OWL? Preferably a diagram. Explanations of OWL mostly seem to dive straight into syntax and never resurface to explain what t …

Hello everyone! I am a final year Computer Science student and I am currently considering ideas about my final year project. After "studying" a bit about web semantics I decided t …

A natural way to provide Linked Data from feeds like weblogs etc. is to mirror the HTML pagination in RDF. Moreover, if the site uses RDFa, then it’s probably the only choice. But …

I have a long standing problem with being able to use modern OWL / RDF editors (such as Protege and Top Braid Composer, primarily) to manage OWL or RDF documents that rely on relat …

Are there examples of tools or architectures that demonstrate support for the Model View Controller (MVC) paradigm for data entry directly against RDF content? It seems to be that …

A project I'm working on is going to be shifting to a triple/quad-store backend for storing RDF data. We're still evaluating triple/quad-stores but I'd like to start moving forward …

Hi all! I actually have two questions. The first one is about D2R Server's sparql endpoint. I have published my dataset using D2R Server so if I want to query it using a sparql c …

Joerg pointed me at this FOAF visualizer. Inspecting the source code, I noted it uses XSLT and XPath to find patterns. Since my FOAF file is embedded as RDFa, it does not surprise …

Are there any ontologies out there that could model the following structures: Emotions about some things Every person has feelings about things like: love, hate, like, dislike, …

In the W3C "RDF/XML Syntax Specification (Revised)" (10 Feb 2004), Section 2.5 "Property Attributes", the use of XML property attributes to shorten RDF/XML is explained. Firstly, p …

What are the differences in following three resource type specifiers? rdf:type rdfs:class owl:class and when to use them?