Table 1 examples of knowledge coded with OWL in OntoStar
From: Harnessing ontology and machine learning for RSO classification
Knowledge type | Example |
|---|---|
Concept hierarchy | LargeDebris SubClassOf Debris |
Debris SubClassOf SpaceObject | |
Rocket SubClassOf SpaceObject | |
Satellite SubClassOf SpaceObject | |
Disjoint Class (Debris Rocket Satellite) | |
Internal knowledge | LargeDebris≡Debris and (size only xsd:float[>0.1f]) |
Contextual knowledge of concepts | SpaceObject SubClassOf (inOrbit exactly 1 Orbit) |
HEO≡Orbit and altitude only xsd:float[>=36000.0f] | |
Orbit SubClassOf (inclination exactly 1 xsd:float[>=0f,<180]) |