RAG and RAU: A Survey on Retrieval-Augmented Language Model in Natural Language Processing

arXiv:2404.19543v1 Announce Type: new
Abstract: Large Language Models (LLMs) have catalyzed significant advancements in Natural Language Processing (NLP), yet they encounter challenges such as hallucination and the need for domain-specific knowledge. To mitigate these, recent methodologies have integrated information retrieved from external resources with LLMs, substantially enhancing their performance across NLP tasks. This survey paper addresses the absence of a comprehensive overview on Retrieval-Augmented Language Models (RALMs), both Retrieval-Augmented Generation (RAG) and Retrieval-Augmented Understanding (RAU), providing an in-depth examination of …

arxiv cs.ai cs.cl language language model language processing natural natural language natural language processing processing rag retrieval retrieval-augmented survey type