Retrieval-augmented generation: The technical foundation of intelligent AI Chatbots

Mahajan, Vaibhav Fanindra (2025) Retrieval-augmented generation: The technical foundation of intelligent AI Chatbots. World Journal of Advanced Research and Reviews, 26 (1). pp. 4093-4099. ISSN 2581-9615

Retrieval-Augmented Generation (RAG) has emerged as a transformative approach in conversational AI technology, addressing fundamental limitations of traditional chatbot systems. This technical article explores the architecture, mechanisms, and advantages of RAG implementations. Traditional AI chatbots suffer from outdated knowledge bases, hallucination tendencies, and limited context awareness - constraints that RAG effectively overcomes by combining dynamic information retrieval with sophisticated text generation capabilities. The RAG framework operates through a multi-stage process encompassing query processing, information retrieval, contextualization, response generation, and delivery. This hybrid architecture yields substantial improvements in factual accuracy, knowledge recency, system transparency, and operational efficiency. The article further examines critical implementation considerations including vector database selection, embedding model optimization, document chunking strategies, retrieval algorithm configuration, and prompt engineering techniques. Looking toward future developments, the article highlights promising directions including multi-modal capabilities, hybrid retrieval methodologies, adaptive retrieval systems, and enterprise knowledge integration. It demonstrates how RAG represents a significant advancement in creating more intelligent, reliable, and context-aware AI conversational systems.