The purpose of this presentation was to help conference attendees gain sufficient experience of working with OWL and tools (e.g., the Swoop ontology editor/browser) to [...]
This video lecture starts with an overview of the requirements for defining and using ontologies on the Web. It then outlines the main concepts and [...]
The speaker discusses the meaning of the word "ontology" in the context of computer science before focusing on how to select a relevant ontology for [...]
SPARQL 1.1 was recently released, which includes entailment regimes for RDFS and OWL vocabularies and a mechanism to express navigation patterns through regular expressions. Unfortunately, [...]
Large-scale information processing systems are able to extract massive collections of interrelated facts, but unfortunately transforming these candidate facts into useful knowledge is a formidable [...]
Wikipedia’s infoboxes contain rich structured information of various entities, which have been exploited by the DBpedia project to generate large-scale Linked Data datasets. Among all [...]
This video discusses the CONTOMAP project, which seeks to solve the problem of mapping from relational databases to ontologies. Several possible approaches are outlined: naive, [...]
This video discusses FEATR, a tool which was developed as a practical solution for Web developers to detect the features of a SPARQL endpoint and [...]
This video presentation covers the whole spectrum of Linked Data production and exposure. It begins with a grounding in Linked Data principles and best practices, [...]
This presentation looks in detail at SPARQL and introduces approaches for querying and updating semantic data. It covers the SPARQL algebra, the SPARQL protocol, and [...]