Architecture Guide
14 min read
GraphRAG: Combining Knowledge Graphs with Vector Databases for Zero-Hallucination AI
The definitive engineering guide to Graph Retrieval-Augmented Generation (GraphRAG). How hybrid architectures combine dense vector embeddings (pgvector) with deterministic knowledge graphs (Neo4j/Neptune) to eliminate LLM hallucinations on complex multi-hop reasoning in healthcare, finance, and regulatory compliance.
Key Highlight: Dense vector search retrieves semantically similar text chunks but is completely blind to multi-hop entity relationships and global document structure.
By Dr. Anita RoyRead Guide