Part 4 Additional considerations

RAG is an evolving technique, and significant research activity has been ongoing in this field. In this concluding part of the book, you will learn about the popular state-of-the-art variants of RAG and a RAG development framework that will assist you in planning and building RAG systems.

Chapter 8 will teach you about the most important variants of RAG—multimodal RAG, knowledge graph-enhanced RAG, and agentic RAG—along with some other popular ones. Learning about these variants will let you customize your RAG systems to the use case you are building.

Chapter 9 revisits all the concepts discussed in this book, organized within a RAG development framework. This framework will help you strategically plan the development of your RAG system. You’ll also get to know a few areas of research that remain open at the time of writing this book.

This concluding part of the book wraps up your introduction to RAG. By the end of this book, you should not only have the foundations to build production-grade RAG systems, but also the knowledge to follow and contribute to ongoing research in this domain.