Lexical search captures exact terms, vectors capture semantic resemblance, and graph traversal captures structured relationships. Fusion should be evaluated against the task and preserve each signal's provenance.

Hybrid Retrieval Combines Lexical, Vector, and Graph Signals

In this situation—finding a policy by code, paraphrased question, and supersession links—which choice best applies “Hybrid Retrieval Combines Lexical, Vector, and Graph Signals”?

Retrieval can be measured by whether relevant evidence appears, its rank, coverage, and forbidden-content leakage. Answer quality is downstream and should not conceal poor evidence selection.

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