Primary and Secondary Retrieval Metrics in Hierarchical Prerequisite Graph RAG
The paper's primary retrieval outcomes are R@ on LectureBank-Full and MOOC-CS, and validation R@ on QASC (whose official test split withholds evidence). R@ and P@ are reported as secondary metrics. Fixing R@ as the headline cutoff matches the strict-parity contract's invariant ; adding R@ provides a stricter recall cutoff and P@ provides a precision-style view of the same top- window.
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Auditable Strict-Parity Evaluation of Prerequisite-Graph Retrieval for RAG under Leakage Controls
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Primary and Secondary Retrieval Metrics in Hierarchical Prerequisite Graph RAG