Retrieval-Stage Role Quota (1, 4, 1) for Child/Bridge/Global
At the retrieval stage, the role-aware ranker enforces a fixed quota on how many slots each role receives in the returned top- context: child = , bridge = , global = , for a total of slots. The quota is fixed across queries and across compared systems, so the role mix is held constant. Direct prerequisites (bridge) dominate the budget while still reserving one slot for downstream focal-local material (child) and one for a shallow anchor (global).
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Science
Auditable Strict-Parity Evaluation of Prerequisite-Graph Retrieval for RAG under Leakage Controls
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