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Unlocking Data with Generative AI and RAG

Unlocking Data with Generative AI and RAG

By : Keith Bourne
5 (2)
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Unlocking Data with Generative AI and RAG

Unlocking Data with Generative AI and RAG

5 (2)
By: Keith Bourne

Overview of this book

Generative AI is helping organizations tap into their data in new ways, with retrieval-augmented generation (RAG) combining the strengths of large language models (LLMs) with internal data for more intelligent and relevant AI applications. The author harnesses his decade of ML experience in this book to equip you with the strategic insights and technical expertise needed when using RAG to drive transformative outcomes. The book explores RAG’s role in enhancing organizational operations by blending theoretical foundations with practical techniques. You’ll work with detailed coding examples using tools such as LangChain and Chroma’s vector database to gain hands-on experience in integrating RAG into AI systems. The chapters contain real-world case studies and sample applications that highlight RAG’s diverse use cases, from search engines to chatbots. You’ll learn proven methods for managing vector databases, optimizing data retrieval, effective prompt engineering, and quantitatively evaluating performance. The book also takes you through advanced integrations of RAG with cutting-edge AI agents and emerging non-LLM technologies. By the end of this book, you’ll be able to successfully deploy RAG in business settings, address common challenges, and push the boundaries of what’s possible with this revolutionary AI technique.
Table of Contents (20 chapters)
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1
Part 1 – Introduction to Retrieval-Augmented Generation (RAG)
7
Part 2 – Components of RAG
14
Part 3 – Implementing Advanced RAG

Nodes and edges in our agent

OK, so let’s review. We’ve mentioned that an agentic RAG graph has three key components: the state that we already talked about, the nodes that append to or update the state, and the conditional edges that decide which node to visit next. We are now to the point where we can step through each of these in code blocks, seeing how the three components interact with each other.

Given this background, the first thing we will add to the code is the conditional edge, where the decisions are made. In this case, we are going to define an edge that determines if the retrieved documents are relevant to the question. This is the function that will decide whether to move on to the generation stage or to go back and try again:

  1. We will step through this code in multiple steps, but keep in mind that this is one large function, starting with the definition:
    def score_documents(state) -> Literal[
        "generate", &quot...
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