1Cademy - Adaptive Depth Gating Stays Tied to Hierarchical Baseline Under Target-Disjoint Control

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Method Part 1: Adaptive Depth Gating for Prerequisite Retrieval (Auditable Strict-Parity Graph-RAG Paper)
Method Part 2: Question-Disjoint and Target-Concept-Disjoint (Auditable Strict-Parity Graph-RAG Paper)
Leakage Controls (Results) in Auditable Strict-Parity Evaluation of Prerequisite-Graph Retrieval for RAG under Leakage Controls

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Adaptive Depth Gating Stays Tied to Hierarchical Baseline Under Target-Disjoint Control

Under the stricter target-concept-disjoint leakage control, Adaptive (heuristic) depth gating remains statistically tied to the fixed-depth hierarchical baseline on both curated prerequisite benchmarks: the paired Adaptive $-$ Hierarchical delta at $k=10$ is $+1.8$ $[-0.9, +4.7]$ on LectureBank-Full and $-1.2$ $[-2.9, +0.4]$ on MOOC-CS (each CI straddles zero). Adaptive depth gating therefore does not produce a reliable improvement over fixed-depth traversal once interfaces and splits are held constant, even under the stricter leakage audit.

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Updated 2026-05-17

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Reference: Auditable Strict-Parity Evaluation of Prerequisite-Graph Retrieval for RAG under Leakage Controls

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