RDF vocabularies and application profiles
Synaptica Tech Talks: Data Modeling with Graphs
This tutorial explores data modelling by comparing and contrasting traditional relational databases with property graph databases and RDF Linked Data graph databases. Also discusses the [...]
OWL and DL Homework Exercises
This document contains several "written" and "electronic" homework questions originally from the course "Semantic Web Topics" at LeHigh University. They include: Draw the equivalent graph [...]
Design an OWL Ontology Project
This document outlines a project originally from the course "Semantic Web Topics" at LeHigh University. Students are asked to work in teams to design an [...]
OOPS!: Catalogue of Common Pitfalls
This catalogue of the most common pitfalls appearing when developing ontologies is part of the documentation for the OOPS! (OntOlogy Pitfall Scanner). The catalogue includes [...]
On Beyond OWL: Challenges for Ontologies on the Web
In this slide presentation, the author argues that "the need for ontologies in the real world is manifest and increasing". This talk explores some of [...]
Making Ontology Documentation with LODE
This paper provides a brief overview of the main features of LODE, the Live OWL Documentation Environment. LODE is an online service that generates a [...]
thing-described-by.org
Thing-described-by.org is a 303-redirect service. It provides a convenient mechanism for minting dereferenceable http URIs for things that are not necessarily web resources, such as [...]
Protege: How To Define Property Types and Axioms
This video is about defining property types and axioms using Protégé, a free, open-source ontology editor and framework. Although the video deals with one specific [...]
Protege: How To Define Class Axioms
This video is about defining class axioms using Protégé, a free, open-source ontology editor and framework. Although the video deals with one specific tool, it [...]
Ordnance Survey Linked Data: A Simple Spatial Query
In this blog post, the author discusses the relative lack of spatial indexes for data in RDF triple stores, compared to data stored in GIS [...]