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Using SPARQL to Refactor User Names to UUIDs
Use SPARQL to convert user supplied IRI names to UUIDs

Michael DeBellis
Dec 1, 20213 min read
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An Agile Approach to Knowledge Graph Development
A paper on the CODO knowledge graph that captures epidemiological and contact tracing data about the Covid-19 pandemic.

Michael DeBellis
Oct 19, 20212 min read
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The People_Example Ontology
I'm working on an article where I provide an overview of the various semantic web technologies such as OWL, SWRL, SPARQL, and SHACL. As...

Michael DeBellis
Oct 7, 20212 min read
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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.

Michael DeBellis
Sep 30, 20213 min read
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Semtech 2021 Workshop
Presentations from the Semtech 2021 Semantic Web workshop held at the Indian Statistical Institute.

Michael DeBellis
Apr 26, 20211 min read
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A Simple Measurement Vocabulary
Simple Web Ontology Language (OWL) vocabulary for measurements in units. Uses SWRL to compute orders and to transform units.

Michael DeBellis
Feb 3, 20214 min read
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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

Michael DeBellis
Dec 7, 20204 min read
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CODO: An Ontology for Collection and Analysis of Covid-19 Data
CODO is an ontology to provide semantics to data on the Covid-19 pandemic

Michael DeBellis
Aug 7, 20202 min read
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Drools vs. Pellet for SWRL rules
This explains the difference between using the Drools buttons at the bottom of the SWRLTab and using Pellet and why Pellet is usually better

Michael DeBellis
Jun 26, 20203 min read
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Some Best Practices for New Protege Users
Collection of blog posts that describe best practices and tips for new users of Protege, OWL, and SWRL

Michael DeBellis
Oct 16, 20193 min read
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OWL Best Practices: Some Theoretical Basics
Overview of the theory behind OWL as well as how OWL relates to other CS paradigms such as OOP and relational DBs

Michael DeBellis
Oct 10, 20192 min read
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Protege Best Practices: Export Inferred Axioms
How to save reasoner inferences in an OWL file

Michael DeBellis
Oct 4, 20193 min read
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SWRL Tip: Removing Ontology Prefixes from SWRL rules
How to remove ontology prefixes for the base ontology from SWRL rules

Michael DeBellis
Sep 12, 20193 min read
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Universal Moral Grammar (UMG) Ontology
Describes an ontology I presented at Semantics 2018 based on Hauser's concept of a Universal Moral Grammar (UMG)

Michael DeBellis
Jul 23, 20192 min read
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