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Community Question Answering (CQA) platforms can be deemed as important knowledge bases in community, but effectively leveraging historical interactions and domain knowledge in real-time remains a challenge. Existing methods often…

计算与语言 · 计算机科学 2025-07-02 Qinwen Chen , Wenbiao Tao , Zhiwei Zhu , Mingfan Xi , Liangzhong Guo , Yuan Wang , Wei Wang , Yunshi Lan

Retrieval-augmented generation (RAG) often falls short when retrieved context includes confusing semi-relevant passages, or when answering questions require deep contextual understanding and reasoning. We propose an efficient fine-tuning…

Retrieval-augmented generation (RAG) enhances LLM reasoning in knowledge-intensive tasks, but existing RAG pipelines incur substantial retrieval and generation overhead when applied to large-scale entity matching. To address this…

数据库 · 计算机科学 2026-02-06 Chuangtao Ma , Zeyu Zhang , Arijit Khan , Sebastian Schelter , Paul Groth

Retrieval-augmented generation (RAG) equips large language models (LLMs) with reliable knowledge memory. To strengthen cross-text associations, recent research integrates graphs and hypergraphs into RAG to capture pairwise and multi-entity…

信息检索 · 计算机科学 2026-02-10 Xingliang Hou , Yuyan Liu , Qi Sun , haoxiu wang , Hao Hu , Shaoyi Du , Zhiqiang Tian

The Retrieval-Augmented Generation (RAG) approach enhances question-answering systems and dialogue generation tasks by integrating information retrieval (IR) technologies with large language models (LLMs). This strategy, which retrieves…

计算与语言 · 计算机科学 2025-09-15 Duolin Sun , Dan Yang , Yue Shen , Yihan Jiao , Zhehao Tan , Jie Feng , Lianzhen Zhong , Jian Wang , Peng Wei , Jinjie Gu

Retrieval-Augmented Generation (RAG) has become the standard paradigm for grounding Large Language Model outputs in external knowledge. Lumer et al. [1] presented the first systematic evaluation comparing vector-based agentic RAG against…

信息检索 · 计算机科学 2026-04-17 Afshan Hashmi

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…

计算与语言 · 计算机科学 2025-07-15 Hai Toan Nguyen , Tien Dat Nguyen , Viet Ha Nguyen

Retrieval-Augmented Generation (RAG) has emerged as a widely adopted approach for enhancing LLMs in scenarios that demand extensive factual knowledge. However, current RAG evaluations concentrate primarily on correctness, which may not…

计算与语言 · 计算机科学 2026-03-23 Vinh Nguyen , Cuong Dang , Jiahao Zhang , Hoa Tran , Minh Tran , Trinh Chau , Thai Le , Lu Cheng , Suhang Wang

Traditional Retrieval-Augmented Generation (RAG) approaches generally assume that retrieval and generation occur on powerful servers removed from the end user. While this reduces local hardware constraints, it introduces significant…

信息检索 · 计算机科学 2026-04-17 Julian Killingback , Ofer Meshi , Henry Li , Hamed Zamani , Maryam Karimzadehgan

Retrieval-Augmented Generation (RAG) enhances the response quality and domain-specific performance of large language models (LLMs) by incorporating external knowledge to combat hallucinations. In recent research, graph structures have been…

信息检索 · 计算机科学 2025-12-17 Hao Hu , Yifan Feng , Ruoxue Li , Rundong Xue , Xingliang Hou , Zhiqiang Tian , Yue Gao , Shaoyi Du

Large Language Models (LLMs) excel at reasoning and generation but are inherently limited by static pretraining data, resulting in factual inaccuracies and weak adaptability to new information. Retrieval-Augmented Generation (RAG) addresses…

计算与语言 · 计算机科学 2025-11-03 Qi Luo , Xiaonan Li , Yuxin Wang , Tingshuo Fan , Yuan Li , Xinchi Chen , Xipeng Qiu

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.…

计算与语言 · 计算机科学 2024-07-29 Yuan Pu , Zhuolun He , Tairu Qiu , Haoyuan Wu , Bei Yu

Large Language Models (LLMs) augmented with Retrieval-Augmented Generation (RAG) techniques are revolutionizing applications across multiple domains, such as healthcare, finance, and customer service. Despite their potential, evaluating RAG…

Retrieval-Augmented Generation (RAG) has advanced significantly in recent years. The complexity of RAG systems, which involve multiple components-such as indexing, retrieval, and generation-along with numerous other parameters, poses…

信息检索 · 计算机科学 2025-08-08 Lorenz Brehme , Thomas Ströhle , Ruth Breu

Motivated by the imperative for real-time responsiveness and data privacy preservation, large language models (LLMs) are increasingly deployed on resource-constrained edge devices to enable localized inference. To improve output quality,…

分布式、并行与集群计算 · 计算机科学 2025-11-11 Guihang Hong , Tao Ouyang , Kongyange Zhao , Zhi Zhou , Xu Chen

Retrieval-Augmented Generation (RAG) systems commonly adopt retrieval fusion techniques such as multi-query retrieval and reciprocal rank fusion (RRF) to increase document recall, under the assumption that higher recall leads to better…

信息检索 · 计算机科学 2026-03-03 Luigi Medrano , Arush Verma , Mukul Chhabra

Retrieval-augmented generation (RAG) enhances large language models with external knowledge, and tree-based RAG organizes documents into hierarchical indexes to support queries at multiple granularities. However, existing Tree-RAG methods…

机器学习 · 计算机科学 2026-05-04 Ziwen Zhao , Menglin Yang

Retrieval-augmented generation (RAG) systems address complex user requests by decomposing them into subqueries, retrieving potentially relevant documents for each, and then aggregating them to generate an answer. Efficiently selecting…

人工智能 · 计算机科学 2025-10-22 Roxana Petcu , Kenton Murray , Daniel Khashabi , Evangelos Kanoulas , Maarten de Rijke , Dawn Lawrie , Kevin Duh

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…

计算与语言 · 计算机科学 2023-10-19 Akari Asai , Zeqiu Wu , Yizhong Wang , Avirup Sil , Hannaneh Hajishirzi

Retrieval Augmented Generation (RAG) systems deployed across organizational boundaries face fundamental tensions between security, accuracy, and efficiency. Current encryption methods expose plaintext during decryption, while federated…

密码学与安全 · 计算机科学 2026-04-13 Yu Liu , Kun Peng , Wenxiao Zhang , Fangfang Yuan , Cong Cao , Wenxuan Lu , Yanbing Liu