Columbia subject headings:
Knowledge representation (Information theory)--Congresses.
Ontology--Congresses.
Query languages (Computer science)--Congresses.
Semantic Web--Congresses.
Harvard subject headings:
Knowledge representation (Information theory)--Congresses.
Ontology--Congresses.
Query languages (Computer science)--Congresses.
Semantic Web--Congresses.
Princeton subject headings: