Repo : https://github.com/dinesh-coderepo/astrology-rag

Tutorial : https://www.youtube.com/watch?v=sVcwVQRHIc8&t=28s

Code repo for the tutorial : https://github.com/langchain-ai/rag-from-scratch

RAG pipelines contain as mentioned in the screenshot is indexing, retrieval and then generation -

First is indexing :

It is easy to compare numbers/vectors than text, so converting text to numerical makes it easy to search

embedding methods - compressed fixed length