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Unlocking Data with Generative AI and RAG

Unlocking Data with Generative AI and RAG

By : Keith Bourne
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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

Defining your LLM

With the prompt template selected, we can select an LLM, a central component for any RAG application. The following code shows the LLM model as the next chain link in rag_chain:

rag_chain = (
    {"context": retriever | format_docs,
     "question": RunnablePassthrough()}
    | prompt
    | llm
    | StrOutputParser()
)

As discussed previously, the output of the previous step, which was the prompt object, is going to be the input of the next step, the LLM. In this case, the prompt will pipe right into the LLM with the prompt we generated in the previous step.

Above rag_chain, we define the LLM we want to use:

llm = ChatOpenAI(model_name="gpt-4o", temperature=0)

This is creating an instance of the ChatOpenAI class from the langchain_openai module, which serves as an interface to OpenAI’s language models, specifically...

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Unlocking Data with Generative AI and RAG
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