Last Updated: December 13th, 2024

12.1.3. Ontologies

Ontologies, also known as knowledge bases, encode general-purpose real-world information.

• E.g., cat is a type of feline, and felines are a type of animal, while cars are a type of vehicle.

• As the name suggests, ontologies are represented in a tree structure.

12.1.3.1. Summary

Property graph/triple store models are a good fit for encoding “knowledge.”

• Fits into the (subject, predicate, object)

• OR (node-edge->node) mode

Entity sets/schema doesn’t need to be fully declared in advance: can extend by adding additional properties of nodes or additional predicate/subject types