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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

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 BeautifulSoup to extract relevant sections.

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

Next, 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 the LCEL. The chain integrates...

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