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Uses RDF Schema to express semantic relationships within a vocabulary.

RDFS for Hierarchy and Subsumption

This PowerPoint presentation explains the role which concepts from thesauri and taxonomies play in Linked Data (especially as they relate to SKOS). It briefly discusses [...]

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By |April 1st, 2017|Comments Off on RDFS for Hierarchy and Subsumption

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

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 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

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

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 Individuals

In this video, individuals (aka, "instances") are created and assigned to the previously created classes and sub-classes. Also shows how to add data property assertions [...]

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

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

Simple Protege Tutorial: Creating and Publishing Another Ontology

Building on the previous videos in the series, the viewer is encouraged to create a and publish a second ontology on their own. Essentially serves [...]

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By |January 8th, 2017|Comments Off on Simple Protege Tutorial: Creating and Publishing Another Ontology