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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

Code lab 8.3 – Hybrid search with LangChain’s EnsembleRetriever to replace our custom function

The file you need to access from the GitHub repository is titled CHAPTER8-3_HYBRID-ENSEMBLE.ipynb.

We continue this code from the last lab starting with the CHAPTER8-2_HYBRID-CUSTOM.ipynb file. The complete code for this code lab is CHAPTER8-3_HYBRID-ENSEMBLE.ipynb. First, we need to import the retriever from LangChain; add this to your imports:

from langchain.retrievers import EnsembleRetriever

This adds EnsembleRetriever from LangChain to be used as a third retriever that combines the other two retrievers. Note that previously, in Code lab 8.2, we added k=10 to each of the two retrievers to make sure we got enough responses to be similar to the other response.

In the past, we just had one set of documents that we defined as documents, but here we want to change the name of those documents to dense_documents, and then add a second set of documents called sparse_documents...

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