OWL | MichaelDeBellis

Knowledge Representation and the Semantic Web

I recently wrote a paper with Robert Neches who used to be my boss at the Information Sciences Institute (ISI). When I work with...

Making UUIDs Easier to Use With Prefixes

In a previous blog post I discussed the difference between user supplied names for IRIs and UUIDs. I want to share a tip that Jim Balhoff...

Using SPARQL to Refactor User Names to UUIDs

Use SPARQL to convert user supplied IRI names to UUIDs

New Protégé Pizza Tutorial

New version of the Pizza Tutorial for Protégé. Consistent with latest Protégé UI and new sections for SWRL, SPARQL, and SHACL.

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Semtech 2021 Workshop

Presentations from the Semtech 2021 Semantic Web workshop held at the Indian Statistical Institute.

A Simple Measurement Vocabulary

Simple Web Ontology Language (OWL) vocabulary for measurements in units. Uses SWRL to compute orders and to transform units.

What's in a Name? IRIs, Labels, and UUIDs

In Protégé and OWL an entity name can refer to the last part of the IRI or the label