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Understands the role of formally declared domains and ranges for inferencing.

OWL 2 Web Ontology Language Primer (Second Edition)

This primer provides an approachable introduction to OWL 2, including orientation for those coming from other disciplines, a running example showing how the language can [...]

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By |May 18th, 2017|Comments Off on OWL 2 Web Ontology Language Primer (Second Edition)

RDF Homework Exercises

This document contains several "written" and "electronic" homework questions originally from the course "Semantic Web Topics" at LeHigh University. They include: Translating an RDF Graph [...]

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By |January 20th, 2017|Comments Off on RDF Homework Exercises

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

OOPS!: Ontology Pitfall Scanner

This tool helps to detect some of the most common pitfalls appearing when developing ontologies. The user enters a URI or paste an OWL document [...]

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By |January 14th, 2017|Comments Off on OOPS!: Ontology Pitfall Scanner

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: 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