Retrieval-Augmented Generation (RAG) is a machine learning architecture that enhances Large Language Models (LLMs) by combining generation with information retrieval from external sources. It was introduced to address the limitations of traditional LLMs by allowing them to access and utilize up-to-date information from internal and/or external knowledge bases. When a query is received, RAG first retrieves relevant documents or information from its knowledge bases, then uses this retrieved con...