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Unlocking Data with Generative AI and RAG

Unlocking Data with Generative AI and RAG - Second Edition

By : Keith Bourne
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Unlocking Data with Generative AI and RAG

Unlocking Data with Generative AI and RAG

5 (3)
By: Keith Bourne

Overview of this book

Developing AI agents that remember, adapt, and reason over complex knowledge isn’t a distant vision anymore; it’s happening now with Retrieval-Augmented Generation (RAG). This second edition of the bestselling guide leads you to the forefront of agentic system design, showing you how to build intelligent, explainable, and context-aware applications powered by RAG pipelines. You’ll master the building blocks of agentic memory, including semantic caches, procedural learning with LangMem, and the emerging CoALA framework for cognitive agents. You’ll also learn how to integrate GraphRAG with tools such as Neo4j to create deeply contextualized AI responses grounded in ontology-driven data. This book walks you through real implementations of working, episodic, semantic, and procedural memory using vector stores, prompting strategies, and feedback loops to create systems that continuously learn and refine their behavior. With hands-on code and production-ready patterns, you’ll be ready to build advanced AI systems that not only generate answers but also learn, recall, and evolve. Written by a seasoned AI educator and engineer, this book blends conceptual clarity with practical insight, offering both foundational knowledge and cutting-edge tools for modern AI development. *Email sign-up and proof of purchase required
Table of Contents (26 chapters)
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1
Part 1: Introduction to Retrieval-Augmented Generation (RAG)
7
Part 2: Components of RAG
14
Part 3: Implementing Agentic RAG
25
Index

Summary

This chapter provided a comprehensive code lab that walked through the implementation of a complete RAG pipeline. We began by installing the necessary Python packages, including LangChain, Chroma DB, and various LangChain extensions. Then, we learned how to set up an OpenAI API key, load documents from a web page using WebBaseLoader, and preprocess the HTML content with Beautiful Soup to extract relevant sections.

Next, the loaded documents were split into manageable chunks using RecursiveCharacterTextSplitter from LangChain’s text-splitters module. These chunks were then embedded into vector representations using OpenAI’s embedding model and stored in a Chroma DB vector database.

After that, we introduced the concept of a retriever, which is used to perform a vector similarity search on the embedded documents based on a given query. We stepped through the retrieval and generation stages of RAG, which in this case are combined into a LangChain chain using...

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Unlocking Data with Generative AI and RAG
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