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Large language models achieve high task performance yet often hallucinate or rely on outdated knowledge. Retrieval-augmented generation (RAG) addresses these gaps by coupling generation with external search. We analyse how hyperparameters…

机器学习 · 计算机科学 2025-05-14 Adel Ammar , Anis Koubaa , Omer Nacar , Wadii Boulila

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

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) effectively enhances Large Language Models (LLMs) by incorporating retrieved external knowledge into the generation process. Reasoning models improve LLM performance in multi-hop QA tasks, which require…

计算与语言 · 计算机科学 2026-01-21 Guo Chen , Junjie Huang , Huaijin Xie , Fei Sun , Tao Jia

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…

Standard accuracy metrics indicate that reading comprehension systems are making rapid progress, but the extent to which these systems truly understand language remains unclear. To reward systems with real language understanding abilities,…

计算与语言 · 计算机科学 2017-07-25 Robin Jia , Percy Liang

Retrieval-augmented generation (RAG) mitigates many problems of fully parametric language models, such as temporal degradation, hallucinations, and lack of grounding. In RAG, the model's knowledge can be updated from documents provided in…

机器学习 · 计算机科学 2024-10-10 Evgenii Kortukov , Alexander Rubinstein , Elisa Nguyen , Seong Joon Oh

The Context-Compliance Regime in Retrieval-Augmented Generation (RAG) occurs when retrieved context dominates the final answer even when it conflicts with the model's parametric knowledge. Accuracy alone does not reveal how retrieved…

计算与语言 · 计算机科学 2026-05-27 Yihang Chen , Pin Qian , Su Wang , Sipeng Zhang , Huan Xu , Shuhuai Lin , Xinpeng Wei

Retrieval-augmented Generation (RAG) extends large language models (LLMs) with external knowledge but faces key challenges: restricted effective context length and redundancy in retrieved documents. Pure compression-based approaches reduce…

计算与语言 · 计算机科学 2025-07-09 Yiqiao Jin , Kartik Sharma , Vineeth Rakesh , Yingtong Dou , Menghai Pan , Mahashweta Das , Srijan Kumar

Retrieval-Augmented Generation (RAG) enables Large Language Models (LLMs) to extend their existing knowledge by dynamically incorporating external information. However, practical deployment is fundamentally constrained by the LLM's finite…

信息检索 · 计算机科学 2026-03-24 Jiarui Guo , Yuemeng Xu , Zongwei Lv , Yangyujia Wang , Xiaolin Wang , Kan Liu , Tao Lan , Lin Qu , Tong Yang

Retrieval-augmented generation (RAG) ranks passages by semantic similarity to the input, implicitly assuming that semantic similarity is a reliable indication of applicability in downstream tasks. This assumption breaks down when task…

信息检索 · 计算机科学 2026-05-28 Zhixing Sun , Shenghe Xu , Tao Li

While Retrieval-Augmented Generation (RAG) systems enhance Large Language Models (LLMs) by incorporating external knowledge, they still face persistent challenges in retrieval inefficiency and the inability of LLMs to filter out irrelevant…

计算与语言 · 计算机科学 2025-02-13 Ruobing Yao , Yifei Zhang , Shuang Song , Yuhua Liu , Neng Gao , Chenyang Tu

Recent models have achieved human level performance on the Stanford Question Answering Dataset when using F1 scores to evaluate the reading comprehension task. Yet, teaching machines to comprehend text has not been solved in the general…

计算与语言 · 计算机科学 2024-01-19 Ariel Marcus

Retrieval-augmented generation (RAG) with large language models (LLMs) has demonstrated strong performance in multilingual question-answering (QA) tasks by leveraging relevant passages retrieved from corpora. In multilingual RAG (mRAG), the…

计算与语言 · 计算机科学 2025-12-12 Jirui Qi , Raquel Fernández , Arianna Bisazza

Retrieval-Augmented Generation (RAG) grounds language models in external evidence, but multi-hop question answering remains difficult because iterative pipelines must control what to retrieve next and when the available evidence is…

信息检索 · 计算机科学 2026-04-28 Minghan Li , Junjie Zou , Xinxuan Lv , Chao Zhang , Guodong Zhou

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…

信息检索 · 计算机科学 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 Generation (RAG) systems rely on retrieved documents being concatenated into a model's input context, making both document ordering and context size critical yet controversial design choices. Prior work reports…

信息检索 · 计算机科学 2026-05-28 Jorge Gabín , Anxo Perez , Javier Parapar

Retrieval-augmented generation (RAG) grounds large language models with external evidence, but under a limited context budget, the key challenge is deciding which retrieved passages should be injected. We show that retrieval relevance…

计算与语言 · 计算机科学 2026-01-27 Zhipeng Song , Yizhi Zhou , Xiangyu Kong , Jiulong Jiao , Xinrui Bao , Xu You , Xueqing Shi , Yuhang Zhou , Heng Qi

Retrieval-Augmented Generation (RAG) has recently emerged as a method to extend beyond the pre-trained knowledge of Large Language Models by augmenting the original prompt with relevant passages or documents retrieved by an Information…

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…