Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks
Lewis, Perez, Piktus, Petroni et al. · NeurIPS · 2020
Abstract
Combines a parametric language model with a non-parametric retriever over a document index, letting the model ground its answers in fetched passages rather than memorized weights.
Why it matters
The origin of "RAG". Explains why bolting a retriever onto a model beats fine-tuning for fast-changing knowledge — the pattern behind most production AI search today.
https://arxiv.org/abs/2005.11401