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RAG-Driven Generative AI
RAG-Driven Generative AI

RAG-Driven Generative AI: Build custom retrieval augmented generation pipelines with LlamaIndex, Deep Lake, and Pinecone

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RAG-Driven Generative AI

RAG Embedding Vector Stores with Deep Lake and OpenAI

There will come a point in the execution of your project where complexity is unavoidable when implementing RAG-driven generative AI. Embeddings transform bulky structured or unstructured texts into compact, high-dimensional vectors that capture their semantic essence, enabling faster and more efficient information retrieval. However, we will inevitably be faced with a storage issue as the creation and storage of document embeddings become necessary when managing increasingly large datasets. You could ask the question at this point, why not use keywords instead of embeddings? And the answer is simple: although embeddings require more storage space, they capture the deeper semantic meanings of texts, with more nuanced and context-aware retrieval compared to the rigid and often-matched keywords. This results in better, more pertinent retrievals. Hence, our option is to turn to vector stores in which embeddings are organized and rapidly...

From raw data to embeddings in vector stores

Embeddings convert any form of data (text, images, or audio) into real numbers. Thus, a document is converted into a vector. These mathematical representations of documents allow us to calculate the distances between documents and retrieve similar data.

The raw data (books, articles, blogs, pictures, or songs) is first collected and cleaned to remove noise. The prepared data is then fed into a model such as OpenAI text-embedding-3-small, which will embed the data. Activeloop Deep Lake, for example, which we will implement in this chapter, will break a text down into pre-defined chunks defined by a certain number of characters. The size of a chunk could be 1,000 characters, for instance. We can let the system optimize these chunks, as we will implement them in the Optimizing chunking section of the next chapter. These chunks of text make it easier to process large amounts of data and provide more detailed embeddings of a document, as...

Organizing RAG in a pipeline

A RAG pipeline will typically collect data and prepare it by cleaning it, for example, chunking the documents, embedding them, and storing them in a vector store dataset. The vector dataset is then queried to augment the user input of a generative AI model to produce an output. However, it is highly recommended not to run this sequence of RAG in one single program when it comes to using a vector store. We should at least separate the process into three components:

  • Data collection and preparation
  • Data embedding and loading into the dataset of a vector store
  • Querying the vectorized dataset to augment the input of a generative AI model to produce a response

Let’s go through the main reasons for this component approach:

  • Specialization, which will allow each member of a team to do what they are best at, either collecting and cleaning data, running embedding models, managing vector stores, or tweaking generative...

A RAG-driven generative AI pipeline

Let’s dive into what a real-life RAG pipeline looks like. Imagine we’re a team that has to deliver a whole system in just a few weeks. Right off the bat, we’re bombarded with questions like:

  • Who’s going to gather and clean up all the data?
  • Who’s going to handle setting up OpenAI’s embedding model?
  • Who’s writing the code to get those embeddings up and running and managing the vector store?
  • Who’s going to take care of implementing GPT-4 and managing what it spits out?

Within a few minutes, everyone starts looking pretty worried. The whole thing feels overwhelming—like, seriously, who would even think about tackling all that alone?

So here’s what we do. We split into three groups, each of us taking on different parts of the pipeline, as shown in Figure 2.3:

Figure 2.3: RAG pipeline components

Each of the three groups has one...

Building a RAG pipeline

We will now build a RAG pipeline by implementing the pipeline described in the previous section and illustrated in Figure 2.3. We will implement three components assuming that three teams (Team #1, Team #2, and Team #3) work in parallel to implement the pipeline:

  • Data collection and preparation by Team #1
  • Data embedding and storage by Team #2
  • Augmented generation by Team #3

The first step is to set up the environment for these components.

Setting up the environment

Let’s face it here and now. Installing cross-platform, cross-library packages with their dependencies can be quite challenging! It is important to take this complexity into account and be prepared to get the environment running correctly. Each package has dependencies that may have conflicting versions. Even if we adapt the versions, an application may not run as expected anymore. So, take your time to install the right versions of the packages and dependencies...

Evaluating the output with cosine similarity

In this section, we will implement cosine similarity to measure the similarity between user input and the generative AI model’s output. We will also measure the augmented user input with the generative AI model’s output. Let’s first define a cosine similarity function:

from sklearn.feature_extraction.text import TfidfVectorizer
from sklearn.metrics.pairwise import cosine_similarity
def calculate_cosine_similarity(text1, text2):
    vectorizer = TfidfVectorizer()
    tfidf = vectorizer.fit_transform([text1, text2])
    similarity = cosine_similarity(tfidf[0:1], tfidf[1:2])
    return similarity[0][0]

Then, let’s calculate a score that measures the similarity between the user prompt and GPT-4’s response:

similarity_score = calculate_cosine_similarity(user_prompt, gpt4_response)
print(f"Cosine Similarity Score: {similarity_score:.3f}")

The score is low, although the output seemed...

Summary

In this chapter, we tackled the complexities of using RAG-driven generative AI, focusing on the essential role of document embeddings when handling large datasets. We saw how to go from raw texts to embeddings and store them in vector stores. Vector stores such as Activeloop, unlike parametric generative AI models, provide API tools and visual interfaces that allow us to see embedded text at any moment.

A RAG pipeline detailed the organizational process of integrating OpenAI embeddings into Activeloop Deep Lake vector stores. The RAG pipeline was broken down into distinct components that can vary from one project to another. This separation allows multiple teams to work simultaneously without dependency, accelerating development and facilitating specialized focus on individual aspects, such as data collection, embedding processing, and query generation for the augmented generation AI process.

We then built a three-component RAG pipeline, beginning by highlighting the...

Questions

Answer the following questions with Yes or No:

  1. Do embeddings convert text into high-dimensional vectors for faster retrieval in RAG?
  2. Are keyword searches more effective than embeddings in retrieving detailed semantic content?
  3. Is it recommended to separate RAG pipelines into independent components?
  4. Does the RAG pipeline consist of only two main components?
  5. Can Activeloop Deep Lake handle both embedding and vector storage?
  6. Is the text-embedding-3-small model from OpenAI used to generate embeddings in this chapter?
  7. Are data embeddings visible and directly traceable in an RAG-driven system?
  8. Can a RAG pipeline run smoothly without splitting into separate components?
  9. Is chunking large texts into smaller parts necessary for embedding and storage?
  10. Are cosine similarity metrics used to evaluate the relevance of retrieved information?

References

Further reading

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Key benefits

  • Implement RAG’s traceable outputs, linking each response to its source document to build reliable multimodal conversational agents
  • Deliver accurate generative AI models in pipelines integrating RAG, real-time human feedback improvements, and knowledge graphs
  • Balance cost and performance between dynamic retrieval datasets and fine-tuning static data

Description

RAG-Driven Generative AI provides a roadmap for building effective LLM, computer vision, and generative AI systems that balance performance and costs. This book offers a detailed exploration of RAG and how to design, manage, and control multimodal AI pipelines. By connecting outputs to traceable source documents, RAG improves output accuracy and contextual relevance, offering a dynamic approach to managing large volumes of information. This AI book shows you how to build a RAG framework, providing practical knowledge on vector stores, chunking, indexing, and ranking. You’ll discover techniques to optimize your project’s performance and better understand your data, including using adaptive RAG and human feedback to refine retrieval accuracy, balancing RAG with fine-tuning, implementing dynamic RAG to enhance real-time decision-making, and visualizing complex data with knowledge graphs. You’ll be exposed to a hands-on blend of frameworks like LlamaIndex and Deep Lake, vector databases such as Pinecone and Chroma, and models from Hugging Face and OpenAI. By the end of this book, you will have acquired the skills to implement intelligent solutions, keeping you competitive in fields from production to customer service across any project.

Who is this book for?

This book is ideal for data scientists, AI engineers, machine learning engineers, and MLOps engineers. If you are a solutions architect, software developer, product manager, or project manager looking to enhance the decision-making process of building RAG applications, then you’ll find this book useful.

What you will learn

  • Scale RAG pipelines to handle large datasets efficiently
  • Employ techniques that minimize hallucinations and ensure accurate responses
  • Implement indexing techniques to improve AI accuracy with traceable and transparent outputs
  • Customize and scale RAG-driven generative AI systems across domains
  • Find out how to use Deep Lake and Pinecone for efficient and fast data retrieval
  • Control and build robust generative AI systems grounded in real-world data
  • Combine text and image data for richer, more informative AI responses
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Table of Contents

12 Chapters
Why Retrieval Augmented Generation? Chevron down icon Chevron up icon
RAG Embedding Vector Stores with Deep Lake and OpenAI Chevron down icon Chevron up icon
Building Index-Based RAG with LlamaIndex, Deep Lake, and OpenAI Chevron down icon Chevron up icon
Multimodal Modular RAG for Drone Technology Chevron down icon Chevron up icon
Boosting RAG Performance with Expert Human Feedback Chevron down icon Chevron up icon
Scaling RAG Bank Customer Data with Pinecone Chevron down icon Chevron up icon
Building Scalable Knowledge-Graph-Based RAG with Wikipedia API and LlamaIndex Chevron down icon Chevron up icon
Dynamic RAG with Chroma and Hugging Face Llama Chevron down icon Chevron up icon
Empowering AI Models: Fine-Tuning RAG Data and Human Feedback Chevron down icon Chevron up icon
RAG for Video Stock Production with Pinecone and OpenAI Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

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Melvin Ng Nov 21, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Nice book
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dr t Oct 04, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Rothman has once again delivered something exceptional with RAG-Driven Generative AI. As expected from Rothman, this book shines in its ability to make complex topics accessible and practical, making it a standout in the growing literature on RAG systems. If you're looking for one of the best resources on RAG, packed with Python code and real-world applications, this book will not let you down.For readers keen to get hands-on, the book does not disappoint. Rothman provides a wealth of Python code throughout, with step-by-step examples that make it easy to follow along and implement RAG-driven solutions. Each chapter concludes with questions to test your understanding, reinforcing key concepts and ensuring that you grasp the material before moving on. For beginners and experienced practitioners alike, this interactive approach adds immense value to the learning experience.Chapter 4, Building a RAG Pipeline, is particularly valuable, offering clear instructions on how to build an end-to-end RAG system. The chapter walks readers through the process of designing a robust RAG pipeline. In addition, Rothman explores cutting-edge tools such as LlamaIndex, Deep Lake, and OpenAI to illustrate how to leverage them effectively for RAG-based projects. The comprehensive nature of this chapter makes it an essential guide for anyone looking to develop RAG systems from scratch or optimise existing ones.However, the most enlightening part of the book for this reader was Chapter 5: Boosting RAG Performance with Expert Human Feedback. This chapter delves into the creation of an adaptive RAG system that can evolve based on user feedback. Rothman guides readers through building a hybrid adaptive RAG program in Python on Google Colab. This hands-on project not only gives readers a solid grasp of adaptive RAG processes but also demonstrates how to adjust a system when predefined models fail to meet user expectations. Rothman goes further to show how human feedback, gathered through user rankings, can be integrated to fine-tune RAG systems, ensuring that the AI continues to meet users' needs. The chapter concludes with the implementation of an automated ranking system to enhance the generative model's performance, making it highly applicable to real-world business settings.In conclusion, RAG-Driven Generative AI is a must-read for anyone involved with LLMs. Rothman has delivered an insightful, practical, and highly recommended resource for anyone looking to explore RAG systems. Highly recommended.
Amazon Verified review Amazon
Jorge Deflon Oct 10, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I have been reading this new book on generative artificial intelligence complemented with RAG (Retrieval-Augmented Generation) and I find it quite useful and interesting.LLM models are advanced artificial intelligence systems designed to process and generate human language.They are trained with enormous amounts of text from several sources, to understand and respond coherently to a wide variety of questions and requests, but this also carries the disadvantage that they may not have the most relevant information for an organization, since it was not available when the model was trained, either due to time or confidentiality issues.Retrieval enhanced generation (RAG) is the process of optimizing the output so that it references an personalized knowledge base before generating a response.This allows the GAI to produce more useful and reliable responses to the organization's users.This book is one of the most complete and up-to-date references on how to use RAG techniques to improve the responses that GAI tools provide to organizational users.The book contains many examples on how use the different types of RAG, including the necessary code to incorporate it into your projects quickly and efficiently.Highly recommended for all practitioners, developers, and students of the topic of generative artificial intelligence.
Amazon Verified review Amazon
Subhayan Roy Oct 11, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
RAG being in the forefront of Gen AI LLM models is a highly sought after skill or knowledge to have.This book covers the theory part of RAG, vectorization, Vector databases.Yet what I found most fascinating was the code snippets, applications that you can directly use in your GenAI application with a bit of modification.Just one advice be clear on Transformer and language models before learning RAG.For this I would recommend Denis's other book Transformers for NLP.
Amazon Verified review Amazon
Siddhartha Vemuganti Oct 15, 2024
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Denis Rothman's "RAG-Driven Gen AI" offers a comprehensive exploration of Retrieval-Augmented Generation systems, addressing a critical need in the rapidly evolving field of artificial intelligence. This book stands out for its practical approach, bridging the gap between theoretical concepts and real-world applications.Rothman's writing style is accessible yet thorough, guiding readers from foundational principles to advanced implementations of RAG systems. The book's structure feels well-considered, allowing readers to build their understanding progressively. While it assumes some prior knowledge of machine learning and Python, making it less suitable for complete beginners, it offers valuable insights for software engineers, developers, and data scientists looking to expand their AI toolkit.One of the book's strengths lies in its diverse range of practical examples. By covering applications from drone technology to customer retention, Rothman effectively demonstrates the versatility of RAG systems. The chapter on multimodal RAG for drone technology is particularly intriguing, opening up new possibilities that many readers might not have previously considered.A standout feature is the book's attention to often-overlooked aspects of AI development, such as software versioning and package management. Rothman's detailed guidance on version control and dependency management addresses real challenges faced by practitioners, potentially saving readers significant time and frustration.The hands-on approach, complete with projects and source code, transforms the book from a mere reference into a practical learning tool. Rothman doesn't shy away from discussing performance optimization and cost management – crucial considerations for implementing AI solutions in production environments.However, readers should be aware that the rapid pace of AI advancement may necessitate supplementing this book with current research and developments. Some cutting-edge concepts discussed may evolve quickly."RAG-Driven Gen AI" serves as a valuable resource for those looking to understand and implement RAG systems. While it may not be the only book you'll need on the subject, it provides a solid foundation and practical insights that many readers will find useful. Rothman's work effectively captures the current state of RAG technology while offering guidance that should remain relevant as the field continues to evolve.For professionals aiming to leverage the power of RAG systems or enhance their AI capabilities, this book is a worthwhile addition to their technical library. It offers a balanced mix of theoretical understanding and practical application, making it a useful companion for those navigating the complex landscape of modern AI development.
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