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Designing RDF-based vocabularies

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 [...]

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By |January 14th, 2017|Comments Off on OOPS!: Catalogue of Common Pitfalls

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 [...]

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By |January 13th, 2017|Comments Off on On Beyond OWL: Challenges for Ontologies on the Web

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 [...]

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By |January 10th, 2017|Comments Off on Protege: How To Define Property Types and Axioms

Protege: How To Define Classes as Property Restrictions

This video is about defining new classes by leveraging the property restrictions of existing classes. This is demonstrated with Protégé, a free, open-source ontology editor [...]

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By |January 10th, 2017|Comments Off on Protege: How To Define Classes as Property Restrictions

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 [...]

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By |January 10th, 2017|Comments Off on Protege: How To Define Class Axioms

Protege: How To Add Individuals

This video is about adding individuals to an ontology which was previously created using Protégé, a free, open-source ontology editor and framework. Although the video [...]

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By |January 10th, 2017|Comments Off on Protege: How To Add Individuals

What SKOS-XL adds to SKOS

In this blog post, the author describes the differences between SKOS and SKOS-XL. Includes a brief example (in Turtle syntax) of a SKOS-XL representation with [...]

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By |January 9th, 2017|Comments Off on What SKOS-XL adds to SKOS

Pulling SKOS "prefLabel" and "altLabel" Values Out of DBpedia

In this blog post, the author proposes that DBpedia may be the best source of reusable URIs when one is seeking to describe entities in [...]

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By |January 9th, 2017|Comments Off on Pulling SKOS "prefLabel" and "altLabel" Values Out of DBpedia

Simple Protege Tutorial: Creating the Ontology Classes

In this video, the presenter demonstrates the first steps of starting an ontology project using the Protege tool. The initial classes and sub-classes are created.URL: [...]

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By |January 8th, 2017|Comments Off on Simple Protege Tutorial: Creating the Ontology Classes

Simple Protege Tutorial: Adding Object Properties

In this video, properties are added to express the relationships between objects belonging to the various classes. Sub-properties, domains, and ranges are also discussed. Also [...]

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By |January 8th, 2017|Comments Off on Simple Protege Tutorial: Adding Object Properties