HyDE: The RAG Trick Where You Answer the Question BEFORE You Search
A new technique called HyDE (Hypothetical Document Embeddings) offers a novel approach to improve retrieval-augmented generation (RAG) systems. Instead of directly embedding a user's question, HyDE first prompts a large language model to generate a hypothetical answer. This generated answer, even if factually incorrect, is then embedded and used for vector search. The technique leverages the fact that the hypothetical answer is more similar in style and topic to relevant documents than the original question, leading to better retrieval. The final response is then generated using only the retrieved real documents, preventing hallucinations. AI
IMPACT This technique could significantly improve the accuracy and relevance of information retrieval in RAG systems, especially when dealing with short queries and long documents.