Vector Retriever

Vector searchFinding the records whose vectors lie closest to a query vector. can be used in Retrieval Augmented Generation (RAGFetching relevant context from an external data source as additional context to inform a language model's response.) applications to find relevant documents based on their content.

In this lesson, you will update the LangChain agent to use a vector retrieverA component that searches a data source and returns the information relevant to a query. Often used to provide context for a language model. that will allow you to search for movies based on plot.