A large hand-built knowledge base full of everyday common sense.
Cyc is like a fussy school librarian for real life. It files cards like, “Cups can fall,” and “Dogs are not sandwiches.”
It helps machines use common sense and organize knowledge. It also shows how hard hand-written knowledge can get.
KR
Cyc uses KR to write common sense in a machine-readable form.
Commonsense Reasoning
Cyc aims to give machines everyday common sense.
Symbolic AI
Cyc is a classic Symbolic AI project based on hand-written knowledge.
Ontology
Cyc uses Ontology to define concepts, types, and relations.