Going Meta S03E04 – Evaluating the Quality of Ontologies

Season 03 Episode 4 of Going Meta – a Series on Semantics, Knowledge Graphs and All Things AI
Topic: Evaluating the Quality of Ontologies

Jesús Barrasa: https://twitter.com/BarrasaDV
Repository: https://github.com/jbarrasa/goingmeta
Knowledge Graph Book: https://bit.ly/3LaqE6b
Previous Episodes: https://neo4j.com/video/going-meta-a-series-on-graphs-semantics-and-knowledge/

0:00 – Episode Introduction
4:06 – Why ontology quality evaluation matters
5:24 – Two types of ontologies (domain vs large taxonomies)
13:13 – Structural metrics: Class Connectivity Coverage
21:52 – Property richness & cohesion metrics (with Cypher examples)
33:06 – Building a Neo4j dashboard for ontology metrics
37:59 – Pragmatic metrics: Annotation & referenceability
44:52 – Evaluating competency question coverage with LLMs
50:23 – Logical soundness & reasoning with Protégé
56:10 – Wrap-up: Applying ontology quality metrics in practice

#graphdatabase #neo4j #graphrag #knowledgegraphs #ontology #data