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Retrieval-augmented generation (RAG) enhances large language models (LLMs) with external knowledge but incurs significant inference costs due to lengthy retrieved contexts. While context compression mitigates this issue, existing methods…

计算与语言 · 计算机科学 2025-09-25 Shuyu Guo , Shuo Zhang , Zhaochun Ren

Retrieval-augmented generation (RAG) is a prevalent approach for building LLM-based question-answering systems that can take advantage of external knowledge databases. Due to the complexity of real-world RAG systems, there are many…

计算与语言 · 计算机科学 2026-01-16 Kin Kwan Leung , Mouloud Belbahri , Yi Sui , Alex Labach , Xueying Zhang , Stephen Anthony Rose , Jesse C. Cresswell

Retrieval-Augmented Generation (RAG) systems for question answering typically retrieve evidence by semantic similarity between the query and document chunks. While effective for unstructured text, this approach is less reliable on…

Multi-entity question answering (MEQA) poses significant challenges for large language models (LLMs), which often struggle to consolidate scattered information across multiple documents. An example question might be "What is the…

计算与语言 · 计算机科学 2025-03-07 Teng Lin , Yizhang Zhu , Yuyu Luo , Nan Tang

The Retrieval Augmented Generation (RAG) framework utilizes a combination of parametric knowledge and external knowledge to demonstrate state-of-the-art performance on open-domain question answering tasks. However, the RAG framework suffers…

计算与语言 · 计算机科学 2024-10-25 Kiseung Kim , Jay-Yoon Lee

Retrieval-Augmented Generation (RAG) has emerged as a standard framework for knowledge-intensive NLP tasks, combining large language models (LLMs) with document retrieval from external corpora. Despite its widespread use, most RAG pipelines…

信息检索 · 计算机科学 2025-08-26 Mandeep Rathee , V Venktesh , Sean MacAvaney , Avishek Anand

Retrieval-Augmented Generation (RAG) has become a standard architectural pattern for incorporating domain-specific knowledge into user-facing chat applications powered by Large Language Models (LLMs). RAG systems are characterized by (1) a…

计算与语言 · 计算机科学 2025-01-17 Robert Friel , Masha Belyi , Atindriyo Sanyal

Financial analysts face significant challenges extracting information from lengthy 10-K reports, which often exceed 100 pages. This paper presents a Retrieval-Augmented Generation (RAG) system designed to answer questions about S&P 500…

计算与语言 · 计算机科学 2026-04-29 Zhiyuan Cheng , Longying Lai , Yue Liu , Kai Cheng , Xiaoxi Qi

Retrieval-Augmented Generation has made significant progress in the field of natural language processing. By combining the advantages of information retrieval and large language models, RAG can generate relevant and contextually appropriate…

信息检索 · 计算机科学 2025-10-20 Da Li , Zecheng Fang , Qiang Yan , Wei Huang , Xuanpu Luo

Retrieval-Augmented Generation (RAG) enables large language models to provide more precise and pertinent responses by incorporating external knowledge. In the Query-Focused Summarization (QFS) task, GraphRAG-based approaches have notably…

信息检索 · 计算机科学 2025-04-11 Yubin Hong , Chaofan Li , Jingyi Zhang , Yingxia Shao

Large Language Models (LLMs) and Knowledge Graphs (KGs) offer a promising approach to robust and explainable Question Answering (QA). While LLMs excel at natural language understanding, they suffer from knowledge gaps and hallucinations.…

机器学习 · 计算机科学 2025-04-15 Jasper Linders , Jakub M. Tomczak

Retrieval-augmented generation (RAG) combines document retrieval with large language models to produce responses grounded in external evidence. While several R packages support core components of RAG workflows, integrated evaluation of RAG…

统计计算 · 统计学 2026-04-28 Muhammad Aimal Rehman , Zhili Lu , Chi-Kuang Yeh

Retrieval-augmented generation (RAG) methods are viable solutions for addressing the static memory limits of pre-trained language models. Nevertheless, encountering conflicting sources of information within the retrieval context is an…

计算与语言 · 计算机科学 2025-06-05 Quang Hieu Pham , Hoang Ngo , Anh Tuan Luu , Dat Quoc Nguyen

Retrieval-Augmented Generation (RAG) grounds large language model outputs in external evidence, but remains challenged on multi-hop question answering that requires long reasoning. Recent works scale RAG at inference time along two…

Retrieval-Augmented Generation (RAG) addresses large language model (LLM) hallucinations by grounding responses in external knowledge, but its effectiveness is compromised by poor-quality retrieved contexts containing irrelevant or noisy…

计算与语言 · 计算机科学 2025-10-27 Jiale Deng , Yanyan Shen , Ziyuan Pei , Youmin Chen , Linpeng Huang

This study aims to improve knowledge-based question-answering (QA) systems by overcoming the limitations of existing Retrieval-Augmented Generation (RAG) models and implementing an advanced RAG system based on Graph technology to develop…

人工智能 · 计算机科学 2024-10-04 Cheonsu Jeong

We present a retrieval-augmented question answering framework for 5G/6G networks, where the Open Radio Access Network (O-RAN) has become central to disaggregated, virtualized, and AI-driven wireless systems. While O-RAN enables multi-vendor…

网络与互联网体系结构 · 计算机科学 2026-01-07 Nathan Conger , Nathan Scollar , Kemal Davaslioglu , Yalin E. Sagduyu , Sastry Kompella

We present a comprehensive study of answer quality evaluation in Retrieval-Augmented Generation (RAG) applications using vRAG-Eval, a novel grading system that is designed to assess correctness, completeness, and honesty. We further map the…

计算与语言 · 计算机科学 2024-11-08 Yang Wang , Alberto Garcia Hernandez , Roman Kyslyi , Nicholas Kersting

Incorporating specific knowledge into large language models via retrieval-augmented generation (RAG) is a widespread technique that fuels many of today's industry AI applications. A fundamental problem is to assess if the context retrieved…

信息检索 · 计算机科学 2026-05-08 Florian Geissler , Francesco Carella , Laura Fieback , Jakob Spiegelberg

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…

计算与语言 · 计算机科学 2025-08-14 Seokgi Lee