G27 — GraphRAG and owned-corpus retrieval graph · Graph systems

187 words. Researched design, reviewed 2026-09-12: a library view or proposed design with its sources stated; not a deployed system, a live audit or a provider requirement. Source: Graph/G27-graphrag-and-owned-corpus-retrieval-graph.md. Graph systems, shelf 5 of 8; library release 2026.09.12-g40.

Status: NEW RESEARCHED DESIGN; not deployed
Reviewed: 2026-09-12
Nature: documented method with library-specific adaptation
Priority: P2
Accountability: R10, R11, R12, R20, R21

Question

Can an assistant retrieve connected facts and their original supporting passages?

Nodes

Entity; Relationship candidate; Text unit; Community; Summary; Source version

Relationship sketch

entity → original text
community → member entity
summary → supporting records

Evidence inputs

Authorized corpus, extraction outputs, source text, evaluation set, permitted access labels.

Implementation

Pilot graph-assisted retrieval beside lexical and vector baselines. Treat extracted edges and generated summaries as candidates until reviewed; return original evidence and scope limitations.

Acceptance checks

Retrieved claims link back to original passages
Privacy filtering happens before retrieval output
Held-out evaluation compares quality, latency, and cost

Do not infer

Installing GraphRAG does not make public search engines ingest your graph or train their models.

Publication boundary

Private retrieval by default; only separately approved exports public.

Source basis

S24, S25. See Research/sources.json. Sources support the primitives or named technology. The organization, labels, actions, and acceptance contracts in this catalog are this library's design, not claimed provider requirements.