// ⌕ RAG & Vector Retrieval

GraphRAG

Builds a knowledge graph and community summaries to answer global questions.

2024 Intermediate core

IN PLAIN WORDS

Plain RAG finds snippets but struggles with corpus-wide questions. GraphRAG extracts entities and relations, clusters communities, summarizes them hierarchically, and aggregates summaries to answer.

Used in: Microsoft GraphRAG, enterprise knowledge analysis

TIMELINE · prerequisites → this → what builds on it

2020 Retrieval-Aug…2024 GraphRAG

01Original paper

From Local to Global: A Graph RAG Approach to Query-Focused Summarization

Darren Edge, Ha Trinh, Newman Cheng, et al. · 2024

arXiv ↗ ✓ Verified · arXiv API

02Where it sits

Learn the left column first; the right column builds on this one.

Learn first

Retrieval-Augmented Generation (RAG)

GraphRAG

Then you can learn

Nothing in the atlas builds on it yet

Left: prerequisites · right: builds on this · dashed: related. Full map →

03Learning resources

Official docs, explainers, courses and reference code. All links checked.

Official docs

microsoft.github.io ↗EN

04Where the course teaches it

U81 RAG Engineering & Evaluation Chunking, query rewriting, HyDE, GraphRAG, citations and evaluation metrics. 8 h4 algorithms3 paperslesson ready

On learning paths:AI Application Engineer

For AI / data

Verification: verified, checked 2026-10-21.
JSON: /api/learn/algorithms.json (id: graphrag)