When to look things up
You never
have
to
It is what puts the Web in Semantic Web
"
Ontological closure
"
Look up predicates and types (cwm --closure=pt)
Nice for it to be O(1) or log(n) in the size of the semweb
Look up predicates and types
Finding definitive sources of data
Documents
Services
Looking up rules
What sort?
What guarantees?
What result?
Tim Berners-Lee
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