How Knowledge Graph RAG Boosts LLM Results

Retrieval-augmented generation (RAG) systems sometimes fail to provide detailed and accurate responses due to limitations in retrieving information from deep knowledge bases. Graph RAG, which involves augmenting the RAG system with a knowledge graph for retrieval, can help address this issue by enabling deeper exploration of data sets and providing more precise connections between documents. Key concepts behind improving RAG performance include using well-defined and meaningful connections such as HTML links, specialized keywords, terms and definitions, and document structure metadata. Graph RAG has proven effective in various domains like technical documentation, legal contracts, and large wikis or knowledge bases.