RAG Series (16): Graph RAG — Using Knowledge Graphs to Solve Multi-Hop Reasoning (opens in new tab)

The Relationship Blindspot in Vector Retrieval Every optimization in this series so far — better chunking, reranking, query rewriting, CRAG — works within a fundamental assumption: retrieval is about finding similar text. But a whole category of questions doesn't fit that assumption: Questions that require reasoning across multiple entities. Consider: "bge-large-zh-v1.5 and bge-reranker-v2-m3 both come from the same organization. What is that organization, and what role does each model play i...