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Retrieval-Augmented Generation (RAG) systems commonly use chunking strategies for retrieval, which enhance large language models (LLMs) by enabling them to access external knowledge, ensuring that the retrieved information is up-to-date and…

Computation and Language · Computer Science 2025-07-15 Hai Toan Nguyen , Tien Dat Nguyen , Viet Ha Nguyen

Retrieval-Augmented Generation (RAG) has shown substantial promise in improving factual accuracy by grounding model responses with external knowledge relevant to queries. However, most existing approaches are limited to a text-only corpus,…

Computation and Language · Computer Science 2026-05-19 Woongyeong Yeo , Kangsan Kim , Soyeong Jeong , Jinheon Baek , Sung Ju Hwang

Graph-based retrieval-augmented generation (RAG) enriches large language models (LLMs) with external knowledge for long-context understanding and multi-hop reasoning, but existing methods face a granularity dilemma: fine-grained…

Computation and Language · Computer Science 2025-09-26 Yaxiong Wu , Jianyuan Bo , Yongyue Zhang , Sheng Liang , Yong Liu

Retrieval Augmented Generation (RAG) is a promising technique for mitigating two key limitations of large language models (LLMs): outdated information and hallucinations. RAG system stores documents as embedding vectors in a database. Given…

Information Retrieval · Computer Science 2026-02-10 Taehee Jeong , Xingzhe Zhao , Peizu Li , Markus Valvur , Weihua Zhao

Retrieval-Augmented Generation (RAG) is a promising approach to mitigate hallucinations in Large Language Models (LLMs) for legal applications, but its reliability is critically dependent on the accuracy of the retrieval step. This is…

Computation and Language · Computer Science 2025-10-09 Markus Reuter , Tobias Lingenberg , Rūta Liepiņa , Francesca Lagioia , Marco Lippi , Giovanni Sartor , Andrea Passerini , Burcu Sayin

Retrieval-Augmented Generation (RAG) has proven effective on server infrastructures, but its application on mobile devices is still underexplored due to limited memory and power resources. Existing vector search and RAG solutions largely…

Databases · Computer Science 2025-07-03 Taehwan Park , Geonho Lee , Min-Soo Kim

With the rapid development of Large Language Models (LLMs), Retrieval-Augmented Generation (RAG) has become a predominant method in the field of professional knowledge-based question answering. Presently, major foundation model companies…

Artificial Intelligence · Computer Science 2024-01-24 Demiao Lin

Traditional Retrieval-Augmented Generation (RAG) methods are limited by their reliance on a fixed number of retrieved documents, often resulting in incomplete or noisy information that undermines task performance. Although recent adaptive…

Computation and Language · Computer Science 2024-10-16 Wenjia Zhai

Retrieval augmented generation (RAG) enhances the accuracy and reliability of generative AI models by sourcing factual information from external databases, which is extensively employed in document-grounded question-answering (QA) tasks.…

Computation and Language · Computer Science 2024-07-29 Yuan Pu , Zhuolun He , Tairu Qiu , Haoyuan Wu , Bei Yu

Retrieval-Augmented Generation (RAG) integrates non-parametric knowledge into Large Language Models (LLMs), typically from unstructured texts and structured graphs. While recent progress has advanced text-based RAG to multi-turn reasoning…

Computation and Language · Computer Science 2025-12-11 Yucan Guo , Miao Su , Saiping Guan , Zihao Sun , Xiaolong Jin , Jiafeng Guo , Xueqi Cheng

Generative retrieval (GR) reformulates the Information Retrieval (IR) task as the generation of document identifiers (docIDs). Despite its promise, existing GR models exhibit poor generalization to newly added documents, often failing to…

Information Retrieval · Computer Science 2026-05-12 Zhen Zhang , Zihan Wang , Xinyu Ma , Shuaiqiang Wang , Dawei Yin , Xin Xin , Pengjie Ren , Maarten de Rijke , Zhaochun Ren

Retrieval-based multimodal document QA aims to identify and integrate relevant information from visually rich documents with complex multimodal structures. While retrieval-augmented generation (RAG) has shown strong performance in…

Information Retrieval · Computer Science 2026-04-21 Hui Wu , Haoquan Zhai , Yuchen Li , Hengyi Cai , Peirong Zhang , Yidan Zhang , Lei Wang , Chunle Wang , Yingyan Hou , Shuaiqiang Wang , Dawei Yin

Standard Retrieval-Augmented Generation (RAG) chunking methods often create excessive redundancy, increasing storage costs and slowing retrieval. This study explores chunk filtering strategies, such as semantic, topic-based, and…

Computation and Language · Computer Science 2026-04-28 Daria Berdyugina , Anaëlle Cohen , Yohann Rioual

We present QuOTE (Question-Oriented Text Embeddings), a novel enhancement to retrieval-augmented generation (RAG) systems, aimed at improving document representation for accurate and nuanced retrieval. Unlike traditional RAG pipelines,…

Information Retrieval · Computer Science 2025-02-18 Andrew Neeser , Kaylen Latimer , Aadyant Khatri , Chris Latimer , Naren Ramakrishnan

Integrating information from various reference databases is a major challenge for Retrieval-Augmented Generation (RAG) systems because each knowledge source adopts a unique data structure and follows different conventions. Retrieving from…

Machine Learning · Computer Science 2025-01-28 Zijie Zhong , Hanwen Liu , Xiaoya Cui , Xiaofan Zhang , Zengchang Qin

We introduce a novel retrieval-augmented generation (RAG) framework tailored for multihop question answering. First, our system uses large language model (LLM) to decompose complex multihop questions into a sequence of single-hop…

Computation and Language · Computer Science 2025-08-14 Seokgi Lee

Large Language Models (LLMs) have achieved impressive progress in natural language processing, but their limited ability to retain long-term context constrains performance on document-level or multi-turn tasks. Retrieval-Augmented…

Computation and Language · Computer Science 2025-05-20 Zhangyu Wang , Siyuan Gao , Rong Zhou , Hao Wang , Li Ning

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by pulling in external material, document, code, manuals, from vast and ever-growing corpora, to effectively answer user queries. The effectiveness of RAG depends…

Information Retrieval · Computer Science 2025-11-20 Yifan Xu , Vipul Gupta , Rohit Aggarwal , Varsha Mahadevan , Bhaskar Krishnamachari

Retrieval-Augmented Generation (RAG) systems critically depend on retrieval quality, yet no systematic comparison of modern retrieval methods exists for heterogeneous documents containing both text and tabular data. We benchmark ten…

Information Retrieval · Computer Science 2026-04-03 Meftun Akarsu , Recep Kaan Karaman , Christopher Mierbach

Large language models (LLMs) inevitably exhibit hallucinations since the accuracy of generated texts cannot be secured solely by the parametric knowledge they encapsulate. Although retrieval-augmented generation (RAG) is a practicable…

Computation and Language · Computer Science 2024-10-08 Shi-Qi Yan , Jia-Chen Gu , Yun Zhu , Zhen-Hua Ling