Michael DeBellis
One Good Hack Deserves Another
SPARQL query to delete asserted property values on datatype super properties
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Michael DeBellis
- Oct 25
- 3 min
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
50 views0 comments
Michael DeBellis
- Nov 17, 2022
- 3 min
UN Sustainable Development Goals Ontology
Case study of how Cellfie and SPARQL can automate developing an ontology to model the UN Sustainable Development Goals.
249 views0 comments
Michael DeBellis
- May 30, 2022
- 3 min
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
1,618 views1 comment
Michael DeBellis
- May 5, 2022
- 1 min
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...
779 views0 comments
Michael DeBellis
- Jan 4, 2022
- 2 min
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...
480 views0 comments
Michael DeBellis
- Dec 1, 2021
- 3 min
Using SPARQL to Refactor User Names to UUIDs
Use SPARQL to convert user supplied IRI names to UUIDs
417 views0 comments
Michael DeBellis
- Oct 19, 2021
- 2 min
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.
499 views0 comments
Michael DeBellis
- Oct 7, 2021
- 2 min
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...
3,533 views3 comments
Michael DeBellis
- Sep 30, 2021
- 3 min
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.
19,271 views17 comments
Michael DeBellis
- Apr 26, 2021
- 1 min
Semtech 2021 Workshop
Presentations from the Semtech 2021 Semantic Web workshop held at the Indian Statistical Institute.
246 views0 comments
Michael DeBellis
- Aug 7, 2020
- 2 min
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
500 views0 comments
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