A Survey on RAG Meeting LLMs: Towards Retrieval-Augmented Large Language Models

Fuente: arXiv
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Autori principali: Fan, Wenqi, Ding, Yujuan, Ning, Liangbo, Wang, Shijie, Li, Hengyun, Yin, Dawei, Chua, Tat-Seng, Li, Qing
Natura: Preprint
Pubblicazione: 2024
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author Fan, Wenqi
Ding, Yujuan
Ning, Liangbo
Wang, Shijie
Li, Hengyun
Yin, Dawei
Chua, Tat-Seng
Li, Qing
author_facet Fan, Wenqi
Ding, Yujuan
Ning, Liangbo
Wang, Shijie
Li, Hengyun
Yin, Dawei
Chua, Tat-Seng
Li, Qing
contents As one of the most advanced techniques in AI, Retrieval-Augmented Generation (RAG) can offer reliable and up-to-date external knowledge, providing huge convenience for numerous tasks. Particularly in the era of AI-Generated Content (AIGC), the powerful capacity of retrieval in providing additional knowledge enables RAG to assist existing generative AI in producing high-quality outputs. Recently, Large Language Models (LLMs) have demonstrated revolutionary abilities in language understanding and generation, while still facing inherent limitations, such as hallucinations and out-of-date internal knowledge. Given the powerful abilities of RAG in providing the latest and helpful auxiliary information, Retrieval-Augmented Large Language Models (RA-LLMs) have emerged to harness external and authoritative knowledge bases, rather than solely relying on the model's internal knowledge, to augment the generation quality of LLMs. In this survey, we comprehensively review existing research studies in RA-LLMs, covering three primary technical perspectives: architectures, training strategies, and applications. As the preliminary knowledge, we briefly introduce the foundations and recent advances of LLMs. Then, to illustrate the practical significance of RAG for LLMs, we systematically review mainstream relevant work by their architectures, training strategies, and application areas, detailing specifically the challenges of each and the corresponding capabilities of RA-LLMs. Finally, to deliver deeper insights, we discuss current limitations and several promising directions for future research. Updated information about this survey can be found at https://advanced-recommender-systems.github.io/RAG-Meets-LLMs/
format Preprint
id arxiv_https___arxiv_org_abs_2405_06211
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A Survey on RAG Meeting LLMs: Towards Retrieval-Augmented Large Language Models
Fan, Wenqi
Ding, Yujuan
Ning, Liangbo
Wang, Shijie
Li, Hengyun
Yin, Dawei
Chua, Tat-Seng
Li, Qing
Computation and Language
Artificial Intelligence
Information Retrieval
As one of the most advanced techniques in AI, Retrieval-Augmented Generation (RAG) can offer reliable and up-to-date external knowledge, providing huge convenience for numerous tasks. Particularly in the era of AI-Generated Content (AIGC), the powerful capacity of retrieval in providing additional knowledge enables RAG to assist existing generative AI in producing high-quality outputs. Recently, Large Language Models (LLMs) have demonstrated revolutionary abilities in language understanding and generation, while still facing inherent limitations, such as hallucinations and out-of-date internal knowledge. Given the powerful abilities of RAG in providing the latest and helpful auxiliary information, Retrieval-Augmented Large Language Models (RA-LLMs) have emerged to harness external and authoritative knowledge bases, rather than solely relying on the model's internal knowledge, to augment the generation quality of LLMs. In this survey, we comprehensively review existing research studies in RA-LLMs, covering three primary technical perspectives: architectures, training strategies, and applications. As the preliminary knowledge, we briefly introduce the foundations and recent advances of LLMs. Then, to illustrate the practical significance of RAG for LLMs, we systematically review mainstream relevant work by their architectures, training strategies, and application areas, detailing specifically the challenges of each and the corresponding capabilities of RA-LLMs. Finally, to deliver deeper insights, we discuss current limitations and several promising directions for future research. Updated information about this survey can be found at https://advanced-recommender-systems.github.io/RAG-Meets-LLMs/
title A Survey on RAG Meeting LLMs: Towards Retrieval-Augmented Large Language Models
topic Computation and Language
Artificial Intelligence
Information Retrieval
url https://arxiv.org/abs/2405.06211