Open-domain question-answering (ODQA) is a wildly popular pipeline of databases and language models that allow us to ask a machine human-like questions and return comprehensible and even intelligent answers.
Despite the outward guise of simplicity, ODQA requires a reasonably advanced set of components placed together to enable the extractive Q&A functionality.
This is a companion discussion topic for the original entry at https://www.pinecone.io/learn/reader-models/