Langchain, Llm, Generative Ai Tools, Large Language Models, Llmops.
you need to find relevant documents based on a query. Question answering over documents consists of four steps: 1) Create an index 2) Create a Retriever from that index 3) Create a question-answering chain 4) Ask questions! Note: By default, LangChain uses Chroma as the vectorstore to index and