Part 3 Flashcards

This Part introduced six terms: schema, extraction, resolution, reversible merge, provenance, and supersession. Cover the definition column and see whether you can recall each one before checking.

Term	Definition
Schema	A fixed list of allowed entity and relationship types, settled on before extraction runs, so an item's fit is a checkable yes-or-no rather than a judgment call made fresh per document.
Extraction	Turning a raw source into nodes and edges checked against a predefined schema — anything outside the schema's allowed types is dropped at the gate, not reshaped to slip through.
Resolution	Recognizing that two separate mentions, pulled from different sources, point at one real-world thing, and combining them into a single node without losing the trace of either original mention.
Reversible merge	A merge that leaves the mentions it combined, plus a stated reason for combining them, still attached to the result — so the decision stays reviewable and, if wrong, undoable.
Provenance	The trail carried on a claim — source document, extraction run, schema version — that lets someone verify where the claim actually came from instead of just taking it on faith.
Supersession	Replacing an outdated claim with a newer, linked one while leaving the outdated claim exactly as recorded, its status flipped rather than its content edited or the record removed.