How to build single-agent RAG system with LlamaIndex?

The blog post by Matea Pesic explores the integration of LlamaIndex and Memgraph to create a single-agent retrieval-augmented generation (RAG) system, enhancing how data is retrieved and processed in AI-powered applications. Memgraph, a fast graph database, is used as a structured knowledge store, while LlamaIndex optimizes information retrieval for large language models (LLMs). The tutorial demonstrates setting up Memgraph, creating a Property Graph Index, and implementing an agent that performs both arithmetic operations and semantic retrieval. It involves using OpenAI's GPT-4 model for generating contextual responses and highlights creating a RAG pipeline to efficiently retrieve and query structured data, such as the 2023 Canadian federal budget. By leveraging these technologies, developers can build advanced, knowledge-graph-aware AI applications, with the article providing foundational examples for further development.