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Large Language Models (LLMs) have demonstrated superior results across a wide range of tasks, and Retrieval-augmented Generation (RAG) is an effective way to enhance the performance by locating relevant information and placing it into the…

Computation and Language · Computer Science 2024-02-22 Zixuan Ke , Weize Kong , Cheng Li , Mingyang Zhang , Qiaozhu Mei , Michael Bendersky

For middle-school math students, interactive question-answering (QA) with tutors is an effective way to learn. The flexibility and emergent capabilities of generative large language models (LLMs) has led to a surge of interest in automating…

Computation and Language · Computer Science 2023-11-14 Zachary Levonian , Chenglu Li , Wangda Zhu , Anoushka Gade , Owen Henkel , Millie-Ellen Postle , Wanli Xing

Large language models (LLMs) struggle with the factual error during inference due to the lack of sufficient training data and the most updated knowledge, leading to the hallucination problem. Retrieval-Augmented Generation (RAG) has gained…

Information Retrieval · Computer Science 2026-01-22 Zulun Zhu , Tiancheng Huang , Kai Wang , Junda Ye , Xinghe Chen , Siqiang Luo

Retrieval-Augmented Generation (RAG) improves large language models (LLMs) by retrieving relevant information from external sources and has been widely adopted for text-based tasks. For structured data, such as knowledge graphs, Graph…

Information Retrieval · Computer Science 2026-03-05 Haoyu Han , Li Ma , Yu Wang , Harry Shomer , Yongjia Lei , Zhisheng Qi , Kai Guo , Zhigang Hua , Bo Long , Hui Liu , Charu C. Aggarwal , Jiliang Tang

Retrieval-augmented large language models (LLMs) have been remarkably competent in various NLP tasks. However, it was observed by previous works that retrieval is not always helpful, especially when the LLM is already knowledgeable on the…

Computation and Language · Computer Science 2024-12-16 Chengkai Huang , Yu Xia , Rui Wang , Kaige Xie , Tong Yu , Julian McAuley , Lina Yao

Large language models (LLMs) have achieved strong empirical performance in various fields, benefiting from their huge amount of parameters that store knowledge. However, LLMs still suffer from several key issues, such as hallucination…

Computation and Language · Computer Science 2026-05-20 Shangyu Wu , Ying Xiong , Yufei Cui , Haolun Wu , Can Chen , Ye Yuan , Lianming Huang , Xue Liu , Tei-Wei Kuo , Nan Guan , Chun Jason Xue

Retrieval-Augmented Generation (RAG) systems are usually defined by the combination of a generator and a retrieval component that extracts textual context from a knowledge base to answer user queries. However, such basic implementations…

Computation and Language · Computer Science 2026-04-21 Pietro Ferrazzi , Milica Cvjeticanin , Alessio Piraccini , Davide Giannuzzi

Large Language Models (LLMs) exhibit remarkable capabilities but are prone to generating inaccurate or hallucinatory responses. This limitation stems from their reliance on vast pretraining datasets, making them susceptible to errors in…

Computation and Language · Computer Science 2024-04-02 Chi-Min Chan , Chunpu Xu , Ruibin Yuan , Hongyin Luo , Wei Xue , Yike Guo , Jie Fu

Large language models (LLMs) often struggle with knowledge intensive NLP tasks, such as answering "Who won the latest World Cup?" because the knowledge they learn during training may be insufficient or outdated. Conditioning generation on…

Computation and Language · Computer Science 2025-03-04 Matthew Finlayson , Ilia Kulikov , Daniel M. Bikel , Barlas Oguz , Xilun Chen , Aasish Pappu

Recent advancements in large language models (LLMs) have enabled their use as agents for planning complex tasks. Existing methods typically rely on a thought-action-observation (TAO) process to enhance LLM performance, but these approaches…

Artificial Intelligence · Computer Science 2025-04-18 Zheng Wang , Shu Xian Teo , Jun Jie Chew , Wei Shi

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by integrating external knowledge retrieved at inference time. While RAG demonstrates strong performance on benchmarks largely derived from general-domain corpora…

Computation and Language · Computer Science 2025-07-29 Ran Xu , Yuchen Zhuang , Yue Yu , Haoyu Wang , Wenqi Shi , Carl Yang

Large language models (LLMs) encapsulate a vast amount of factual information within their pre-trained weights, as evidenced by their ability to answer diverse questions across different domains. However, this knowledge is inherently…

Artificial Intelligence · Computer Science 2024-01-31 Oded Ovadia , Menachem Brief , Moshik Mishaeli , Oren Elisha

Large language models (LLMs) are transforming the landscape of medicine, yet two fundamental challenges persist: keeping up with rapidly evolving medical knowledge and providing verifiable, evidence-grounded reasoning. Retrieval-augmented…

The rapid growth of medical knowledge and increasing complexity of clinical practice pose challenges. In this context, large language models (LLMs) have demonstrated value; however, inherent limitations remain. Retrieval-augmented…

Retrieval-Augmented Generation (RAG) has gained significant popularity in modern Large Language Models (LLMs) due to its effectiveness in introducing new knowledge and reducing hallucinations. However, the deep understanding of RAG remains…

Computation and Language · Computer Science 2024-10-07 Jingyu Liu , Jiaen Lin , Yong Liu

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by retrieving relevant memories from an external database. However, existing RAG methods typically organize all memories in a whole database, potentially limiting…

Computation and Language · Computer Science 2024-05-28 Zheng Wang , Shu Xian Teo , Jieer Ouyang , Yongjun Xu , Wei Shi

Despite their remarkable capabilities, large language models (LLMs) often produce responses containing factual inaccuracies due to their sole reliance on the parametric knowledge they encapsulate. Retrieval-Augmented Generation (RAG), an ad…

Computation and Language · Computer Science 2023-10-19 Akari Asai , Zeqiu Wu , Yizhong Wang , Avirup Sil , Hannaneh Hajishirzi

Retrieval Augmented Generation (RAG) is a technique used to augment Large Language Models (LLMs) with contextually relevant, time-critical, or domain-specific information without altering the underlying model parameters. However,…

Information Retrieval · Computer Science 2024-08-20 Laurent Mombaerts , Terry Ding , Adi Banerjee , Florian Felice , Jonathan Taws , Tarik Borogovac

Retrieval-augmented Generation (RAG) has markedly enhanced the capabilities of Large Language Models (LLMs) in tackling knowledge-intensive tasks. The increasing demands of application scenarios have driven the evolution of RAG, leading to…

Computation and Language · Computer Science 2024-08-01 Yunfan Gao , Yun Xiong , Meng Wang , Haofen Wang

Retrieval-Augmented Generation (RAG) was introduced to enhance the capabilities of Large Language Models (LLMs) beyond their encoded prior knowledge. This is achieved by providing LLMs with an external source of knowledge, which helps…

Computation and Language · Computer Science 2026-03-11 Hazem Amamou , Stéphane Gagnon , Alan Davoust , Anderson R. Avila