Michael DeBellis
Using ChatGPT to Generate English Labels for a Spanish Ontology
I've been using ChatGPT to help with various kinds of analysis and coding tasks. Today I had the problem of generating English labels for...
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Michael DeBellis
Apr 93 min read
Using SPARQL to Delete Duplicate Instances
Describes developing a query to delete objects that have different IRIs but are essentially duplicates.
126 views0 comments
Michael DeBellis
Nov 21, 20238 min read
Puns in the Web Ontology Language (OWL): Why We Need Them and How to Use Them
The reasons that puns are needed in the Web Ontology Language (OWL) and some discussion of how to use them
524 views0 comments
Michael DeBellis
Nov 9, 20232 min read
One Good Hack Deserves Another
SPARQL query to delete asserted property values on datatype super properties
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Michael DeBellis
Oct 25, 20233 min read
The DaanMatch System: A Knowledge Graph linking NGOs with UN Sustainable Development Goals
The DaanMatch project and how knowledge graphs and NLP were used to facilitate linking NGOs with the UN Sustainable Development Goals
206 views0 comments
Michael DeBellis
Aug 28, 20232 min read
Creating a Custom Rules View Tab
Note: There was a problem with the link to the PDF for the tutorial below. It worked for me because I owned the file but for others since...
737 views1 comment
Michael DeBellis
Jun 26, 20231 min read
YouTube Videos for Protégé Tutorial
Link to a YouTube playlist that takes you through some basic steps in Protégé
1,058 views2 comments
Michael DeBellis
Feb 28, 20232 min read
New Version of Protégé!
New version of Protégé rocks!
837 views2 comments
Michael DeBellis
Jan 10, 20236 min read
Using SKOS to Define Mappings
Describes ways to use the Simple Knowledge Organization System (SKOS) to define mappings from one Concept Scheme to another.
1,190 views1 comment
Michael DeBellis
Jan 10, 20236 min read
Synonyms, IRIs, and Labels in OWL and SKOS
Basic concepts related to synonyms in the Web Ontology Language (OWL), Simple Knowledge Organization System (SKOS), and Protégé.
821 views0 comments
Michael DeBellis
Dec 22, 20224 min read
IRI Mappings in Protégé and Web Protégé
When you load an ontology from Desktop Protégé to Web Protégé defaults related to IRIs aren't what you would expect. Tells how to set them.
1,471 views1 comment
Michael DeBellis
Nov 17, 20223 min read
UN Sustainable Development Goals Ontology
Case study of how Cellfie and SPARQL can automate developing an ontology to model the UN Sustainable Development Goals.
404 views0 comments
Michael DeBellis
May 30, 20223 min read
Semantic Web vs. Property Graphs
Discusses the pros and cons of property graphs (Neo4J and Cypher) contrasted with the Semantic Web stack: RDF, OWL, SPARQL, SHACL, SWRL
2,373 views1 comment
Michael DeBellis
Jan 25, 20222 min read
Testing and Debugging Ontologies
Best practices for creating and using individuals as test data for OWL ontologies
590 views0 comments
Michael DeBellis
Jan 14, 20222 min read
Memory Management with Protégé
A common problem that Protégé users encounter when they start working with large ontologies is running out of memory, which results in an...
886 views2 comments
Michael DeBellis
Jan 4, 20222 min read
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...
1,016 views0 comments
Michael DeBellis
Dec 1, 20213 min read
Using SPARQL to Refactor User Names to UUIDs
Use SPARQL to convert user supplied IRI names to UUIDs
562 views0 comments
Michael DeBellis
Oct 19, 20212 min read
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.
562 views0 comments
Michael DeBellis
Oct 7, 20212 min read
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...
5,144 views4 comments
Michael DeBellis
Sep 30, 20213 min read
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.
28,442 views17 comments
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