The Opinionated Ontologist

By Jamie McCusker

I'm Jamie McCusker, the host of The Opinionated Ontologist, a weekly podcast where I discuss Graph AI in all its forms (neurosymbolic AI, knowledge graphs, semantics, knowledge representation, and, of... more

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FAQs about The Opinionated Ontologist:

How many episodes does The Opinionated Ontologist have?

The podcast currently has 12 episodes available.

The Opinionated Ontologist episodes:

May 23, 2025 What's in a Triple?
We discuss reification using the W3C draf recommendation RDF 1.2, modeling choices, and how the approach is similar to, and different from, edge properties in Labeled Property Graphs.
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50min
May 09, 2025KGC-palooza!
This week I was at the Knowledge Graph Conference, the biggest industry Graph AI conference out there! I spoke with Bob Metcalfe of network effect fame, Peter Crocker of Oxford Semantics, and a huge KGC crew of ontologists, technologists, and knowledge graph experts.

Featuring:
Bob Metcalfe
Peter Crocker
Mara Inglezakis Owens
Margaret Warren
Pete Rivett
Hande McGinty
Tom Plasterer
Ora Lassila
Keith Corbett
Elisa Kendall
Larry Swanson
Deborah McGuinness
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50min
May 06, 2025 What's so Basic about BFO?
We continue our mini series on upper level ontologies with an episode on the Basic Formal Ontology, or BFO. John Beverley of University at Buffalo joins us. John is the current steward of BFO, and works with its founder Barry Smith on its use in domain applications.

For more information about BFO, visit their github page at https://github.com/BFO-ontology/BFO-2020.
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1h 10min
April 12, 2025 Upper Ontologies: gist
This week we discuss the upper level ontology gist with its creator, Dave McComb.
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49min
April 06, 2025 What Does Medicine Mean?
Chime Ogbuji joins me to talk about the role of medical informatics in knowledge graphs and semantics, all the way from MYCIN and GALEN to today.
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53min
March 26, 2025 Careful with that Predicate, Eugene!
Properties are the workhorse of ontologies, where semantics really happen. So be careful when you make a new one!
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23min
March 20, 2025What's So Hard to Understand?
Keith Corbett and Grace Roessling join us for a discussion about learning RDF, OWL, and knowledge graphs.

Keith: For nearly 50 years, Keith has been a technical communicator, data modeler, and knowledge engineer. Then and now, he has explored the intersections of deterministic AI, hypertext, and graph data.

Grace: Grace is a PhD candidate cognitive science at Rensselaer Polytechnic Institute. in the Perception and Action lab with Dr. Brett Fajen. Her dissertation is focused on how humans combine vision and spatial knowledge to guide high speed steering.

References
Larkin & Simon (1987) -- list vs. diagrammatic representations (https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1551-6708.1987.tb00863.x)
Temple Grandin (2016) -- visual thinking, pattern mathematical thinking, and verbal/auditory thinking (https://www.jstor.org/stable/26407108?seq=3)
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1h 20min
March 12, 2025What's an Ontology?
In this episode, Deborah McGuinness and I discuss ontologies: what's in them, what they're used for, what makes them good, and how to go about making them.

Notes and links:
Deborah McGuinness: https://tw.rpi.edu/person/Deborah_L_McGuinness
The Ontology Spectrum: https://www.researchgate.net/publication/221024668_Ontologies_Come_of_Age
Schemas vs ontologies: https://www.w3.org/wiki/SchemaVsOntology Ontology and database schema: What's the difference?
Ontologies 101: https://protege.stanford.edu/publications/ontology_development/ontology101.pdf
Ontology Engineering: https://ieeexplore.ieee.org/book/8701593
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1h
March 05, 2025 What are we talking about?
Today we flip the script: Prof. Zara Waldman DeLuca interviews Jamie on the fundamentals of knowledge graphs and ontologies, and they talk about some of the social, linguistic, and cognitive aspects of human vs machine cognition.
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1h 1min
February 26, 2025 How does RAG work with KGs?
Today I was joined by David Hyland-Wood to discuss how Retrieval-Augmented Generation (RAG) works with Knowledge Graphs. We also talked about LLM bullshit, and the relationship between RAG systems, knowledge graphs, and open-source large language models, and explore the importance of modeling knowledge graphs for effective output.
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1h 8min

FAQs about The Opinionated Ontologist:

How many episodes does The Opinionated Ontologist have?

The podcast currently has 12 episodes available.