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Retrieval-Augmented Generation (RAG) improves reliability of large language models by incorporating external knowledge, but the retrieval process can introduce bias that propagates to generated outputs. This issue is particularly…

数据库 · 计算机科学 2026-05-18 Yingqi Zhao , Vasilis Efthymiou , Jyrki Nummenmaa , Kostas Stefanidis

Retrieval Augmented Generation (RAG) has proven to be highly effective in boosting the generative performance of language model in knowledge-intensive tasks. However, existing RAG framework either indiscriminately perform retrieval or rely…

人工智能 · 计算机科学 2025-01-03 Xiaqiang Tang , Qiang Gao , Jian Li , Nan Du , Qi Li , Sihong Xie

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…

计算与语言 · 计算机科学 2025-09-26 Yaxiong Wu , Jianyuan Bo , Yongyue Zhang , Sheng Liang , Yong Liu

Generative retrieval represents a novel approach to information retrieval. It uses an encoder-decoder architecture to directly produce relevant document identifiers (docids) for queries. While this method offers benefits, current approaches…

信息检索 · 计算机科学 2024-09-30 Yubao Tang , Ruqing Zhang , Jiafeng Guo , Maarten de Rijke , Wei Chen , Xueqi Cheng

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by grounding generation in external knowledge, yielding relevance responses that are aligned with factual evidence and evolving corpora. Standard RAG pipelines…

机器学习 · 计算机科学 2026-04-07 Xun Sun , Baiheng Xie , Li Huang , Qiang Gao

Multi-vector retrieval methods such as ColBERT and its recent variant, the ConteXtualized Token Retriever (XTR), offer high accuracy but face efficiency challenges at scale. To address this, we present WARP, a retrieval engine that…

信息检索 · 计算机科学 2025-07-08 Jan Luca Scheerer , Matei Zaharia , Christopher Potts , Gustavo Alonso , Omar Khattab

To mitigate the hallucination and knowledge deficiency in large language models (LLMs), Knowledge Graph (KG)-based Retrieval-Augmented Generation (RAG) has shown promising potential by utilizing KGs as external resource to enhance LLMs…

计算与语言 · 计算机科学 2025-01-23 Zengyi Gao , Yukun Cao , Hairu Wang , Ao Ke , Yuan Feng , Xike Xie , S Kevin Zhou

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,…

计算与语言 · 计算机科学 2026-05-19 Woongyeong Yeo , Kangsan Kim , Soyeong Jeong , Jinheon Baek , Sung Ju Hwang

Retrieval-Augmented Generation (RAG) encounters efficiency challenges when scaling to massive knowledge bases while preserving contextual relevance. We propose Hash-RAG, a framework that integrates deep hashing techniques with systematic…

信息检索 · 计算机科学 2025-06-04 Jinyu Guo , Xunlei Chen , Qiyang Xia , Zhaokun Wang , Jie Ou , Libo Qin , Shunyu Yao , Wenhong Tian

Retrieval-augmented generation (RAG) is a common way to ground language models in external documents and up-to-date information. Classical retrieval systems relied on lexical methods such as BM25, which rank documents by term overlap with…

计算与语言 · 计算机科学 2026-03-05 Martin Asenov , Kenza Benkirane , Dan Goldwater , Aneiss Ghodsi

Retrieval-Augmented Generation (RAG) has emerged as a powerful approach to mitigate large language model (LLM) hallucinations by incorporating external knowledge retrieval. However, existing RAG frameworks often apply retrieval…

信息检索 · 计算机科学 2025-07-29 Jinyan Su , Jennifer Healey , Preslav Nakov , Claire Cardie

Typical retrieval systems have three requirements: a) Accurate retrieval i.e., the method should have high precision, b) Diverse retrieval, i.e., the obtained set of points should be diverse, c) Retrieval time should be small. However, most…

信息检索 · 计算机科学 2020-08-25 Vidyadhar Rao , Prateek Jain , C. V Jawahar

Retrieval-augmented generation (RAG) has become a cornerstone for knowledge-intensive tasks. However, the efficacy of RAG is often bottlenecked by the ``one-size-fits-all'' retrieval paradigm, as different queries exhibit distinct…

信息检索 · 计算机科学 2026-04-28 Tong Zhao , Yutao Zhu , Yucheng Tian , Zhicheng Dou

Retrieval-augmented generation (RAG) systems have predominantly focused on text-based retrieval, limiting their effectiveness in handling visually-rich documents that encompass text, images, tables, and charts. To bridge this gap, we…

信息检索 · 计算机科学 2025-05-07 Mingjun Xu , Zehui Wang , Hengxing Cai , Renxin Zhong

Retrieval-Augmented Generation (RAG) prevails in Large Language Models. It mainly consists of retrieval and generation. The retrieval modules (a.k.a. retrievers) aim to find useful information used to facilitate the generation modules…

信息检索 · 计算机科学 2025-02-18 Xinping Zhao , Yan Zhong , Zetian Sun , Xinshuo Hu , Zhenyu Liu , Dongfang Li , Baotian Hu , Min Zhang

We propose a scalable and cost-efficient framework for deploying Graph-based Retrieval-Augmented Generation (GraphRAG) in enterprise environments. While GraphRAG has shown promise for multi- hop reasoning and structured retrieval, its…

人工智能 · 计算机科学 2025-12-19 Congmin Min , Sahil Bansal , Joyce Pan , Abbas Keshavarzi , Rhea Mathew , Amar Viswanathan Kannan

Knowledge Graph Retrieval-Augmented Generation (KG-RAG) extends the RAG paradigm by incorporating structured knowledge from knowledge graphs, enabling Large Language Models (LLMs) to perform more precise and explainable reasoning. While…

计算与语言 · 计算机科学 2026-02-04 Jing Ren , Bowen Li , Ziqi Xu , Xikun Zhang , Haytham Fayek , Xiaodong Li

Cardinality-constrained binary optimization is a fundamental computational primitive with broad applications in machine learning, finance, and scientific computing. In this work, we introduce a Grover-based quantum algorithm that exploits…

量子物理 · 物理学 2026-03-17 Haomu Yuan , Hanqing Wu , Kuan-Cheng Chen , Bin Cheng , Crispin H. W. Barnes

This study presents a question-based knowledge encoding approach that improves retrieval-augmented generation (RAG) systems without requiring fine-tuning or traditional chunking. We encode textual content using generated questions that span…

Retrieval-augmented generation (RAG) is a common technique for grounding language model outputs in domain-specific information. However, RAG is often challenged by reasoning-intensive question-answering (QA), since common retrieval methods…

计算与语言 · 计算机科学 2026-01-27 Saadat Hasan Khan , Spencer Hong , Jingyu Wu , Kevin Lybarger , Youbing Yin , Erin Babinsky , Daben Liu
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