How I Built an LLM App Based on Graph-RAG System with ChromaDB and Chainlit

Author(s): Dr. Alessandro Crimi

Originally published on Towards AI.

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End-to-end app with GUI and storing new knowledge on vector database in just 3 scripts

Large language models (LLMs) and knowledge graphs are valuable tools to work with natural language processing. Retrieval-augmented generation (RAG) has emerged as a powerful approach to enhance LLMs responses with contextual knowledge. Contextual knowledge is generally embedded and stored in a vector database and used to create the context to empower a prompt. However, in this way, knowledge is mapped in a conceptual space but it is not really organized. A knowledge graph captures information about data points or entities in a domain and the relationships between them. Data are described as nodes and relationships within a knowledge graph. This gives more structure than just embedding words in a vector space.

A graph-RAG is something that combines both aspects providing the augmented knowledge of RAG to be organized as knowledge graph for better responses by the LLM.

In this article, I am going to tell you how I created an application end-to-end putting together all this.

Shortly, I used

Chainlit for the front-endChromaDB to store knowledge as vectorsNetworkx to manage graphSentence-transformers (Pytorch) for generating… Read the full blog for free on Medium.

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Published via Towards AI