Hands-On RAG guide for personal data with Vespa and LLamaIndex

This blog post presents a hands-on tutorial on using Vespa's streaming mode for efficient retrieval of personal data, in conjunction with LLamaIndex, to create advanced generative AI pipelines. It details the configuration of Vespa with PyVespa, including the use of Vespa's native embedders and various ranking methods such as hybrid retrieval and Vespa Rank Fusion. It also covers the integration of LLamaIndex retrievers to build Retrieval Augmented Generation (RAG) applications that can federate and blend query results from multiple data sources like personal email and calendar data. The tutorial emphasizes Vespa's cost-effective approach by using disk-based storage and avoiding in-memory data retention, significantly reducing deployment costs. Additionally, it highlights the potential for expanding the application to include more data sources for comprehensive personal context tracking, showcasing Vespa's versatility in managing and querying large-scale personal datasets.