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Building Neo4j-Powered Applications with LLMs

You're reading from   Building Neo4j-Powered Applications with LLMs Create LLM-driven search and recommendations applications with Haystack, LangChain4j, and Spring AI

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Product type Paperback
Published in Jun 2025
Publisher Packt
ISBN-13 9781836206231
Length 312 pages
Edition 1st Edition
Languages
Concepts
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Authors (2):
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Ravindranatha Anthapu Ravindranatha Anthapu
Author Profile Icon Ravindranatha Anthapu
Ravindranatha Anthapu
Siddhant Agarwal Siddhant Agarwal
Author Profile Icon Siddhant Agarwal
Siddhant Agarwal
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Toc

Table of Contents (20) Chapters Close

Preface 1. Part: 1 Introducing RAG and Knowledge Graphs for LLM Grounding 2. Introducing LLMs, RAGs, and Neo4j Knowledge Graphs FREE CHAPTER 3. Demystifying RAG 4. Building a Foundational Understanding of Knowledge Graph for Intelligent Applications 5. Part 2: Integrating Haystack with Neo4j: A Practical Guide to Building AI-Powered Search 6. Building Your Neo4j Graph with Movies Dataset 7. Implementing Powerful Search Functionalities with Neo4j and Haystack 8. Exploring Advanced Knowledge Graph Capabilities with Neo4j 9. Part 3: Building an Intelligent Recommendation System with Neo4j, Spring AI, and LangChain4j 10. Introducing the Neo4j Spring AI and LangChain4j Frameworks for Building Recommendation Systems 11. Constructing a Recommendation Graph with H&M Personalization Dataset 12. Integrating LangChain4j and Spring AI with Neo4j 13. Creating an Intelligent Recommendation System 14. Part 4: Deploying Your GenAI Application in the Cloud 15. Choosing the Right Cloud Platform for GenAI Applications 16. Deploying Your Application on the Google Cloud 17. Epilogue 18. Other Books You May Enjoy
19. Index

Understanding the power of RAG

RAG was introduced by Meta researchers in 2020 (https://arxiv.org/abs/2005.11401v4) as a framework that allows GenAI models to leverage external data that is not part of model training to enhance the output.

It is a widely known fact that LLMs suffer from hallucinations. One of the classic real-world examples of LLMs hallucinating is the case of Levidow, Levidow & Oberman, the New York law firm that was fined for submitting a legal brief containing fake citations generated by OpenAI’s ChatGPT in a case against Colombian airline Avianca. They were subsequently fined thousands of dollars, and they are likely to have lost more in reputational damage. You can read more about it here: https://news.sky.com/story/lawyers-fined-after-citing-bogus-cases-from-chatgpt-research-12908318.

LLM hallucinations can arise from several factors, such as the following:

  • Overfitting to training data: During training, the LLM might overfit to...
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