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One Good Hack Deserves Another
SPARQL query to delete asserted property values on datatype super properties

Michael DeBellis
Nov 9, 20232 min read
50 views
3 comments


Using SKOS to Define Mappings
Describes ways to use the Simple Knowledge Organization System (SKOS) to define mappings from one Concept Scheme to another.

Michael DeBellis
Jan 10, 20236 min read
1,517 views
4 comments


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.

Michael DeBellis
Dec 22, 20224 min read
1,799 views
4 comments


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...

Michael DeBellis
May 5, 20221 min read
1,182 views
3 comments


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...

Michael DeBellis
Jan 14, 20222 min read
1,006 views
5 comments


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
544 views
3 comments
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