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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

Semantic versus keyword search

As we’ve already said many times, vectors capture the meaning behind our data in a mathematical representation. To find data points similar in meaning to a user query, we can search and retrieve the closest objects in a vector space such as the one we just showed. This is known as semantic or vector search. A semantic search, as opposed to keyword matching, is searching for documents that have similar semantic meaning, rather than just the same words. As humans, we can say the same or similar things in so many different ways! Semantic search can capture that aspect of our language because it assigns similar mathematical values to similar concepts, whereas keyword search focuses on specific word matching and often misses similar semantic meanings partially or entirely.

From a technical standpoint, semantic search utilizes the meaning of the documents we have vectorized that is mathematically embedded in the vector that represents it. For math...

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