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Retrieval-augmented generation (RAG) appears as a promising method to alleviate the "hallucination" problem in large language models (LLMs), since it can incorporate external traceable resources for response generation. The essence of RAG…

计算与语言 · 计算机科学 2024-10-16 Haosheng Qian , Yixing Fan , Ruqing Zhang , Jiafeng Guo

Retrieval-Augmented Generation (RAG) models frequently encounter hallucination phenomena when integrating external information with internal parametric knowledge. Empirical studies demonstrate that the disequilibrium between external…

计算与语言 · 计算机科学 2025-05-13 Lei Wang

Retrieval Augmented Generation (RAG) has emerged as a promising solution to address hallucination issues in Large Language Models (LLMs). However, the integration of multiple retrieval sources, while potentially more informative, introduces…

信息检索 · 计算机科学 2025-08-12 Wenlong Wu , Haofen Wang , Bohan Li , Peixuan Huang , Xinzhe Zhao , Lei Liang

Despite the potential of Large Language Models (LLMs) in medicine, they may generate responses lacking supporting evidence or based on hallucinated evidence. While Retrieval Augment Generation (RAG) is popular to address this issue, few…

Despite their significant advancements, Multimodal Large Language Models (MLLMs) often generate factually inaccurate information, referred to as hallucination. In this work, we address object hallucinations in MLLMs, where information is…

计算机视觉与模式识别 · 计算机科学 2025-03-03 Pritam Sarkar , Sayna Ebrahimi , Ali Etemad , Ahmad Beirami , Sercan Ö. Arık , Tomas Pfister

Retrieval-Augmented Generation (RAG) significantly enhances Large Language Models (LLMs) by providing access to external knowledge. However, current research primarily focuses on retrieval quality, often overlooking the critical…

计算与语言 · 计算机科学 2026-04-16 Zhengyi Zhao , Shubo Zhang , Zezhong Wang , Yuxi Zhang , Huimin Wang , Yutian Zhao , Yefeng Zheng , Binyang Li , Kam-Fai Wong , Xian Wu

While large language models (LLMs) have demonstrated increasing power, they have also called upon studies on their hallucinated outputs that deviate from factually correct statements. In this paper, we focus on one important scenario of…

计算与语言 · 计算机科学 2025-01-23 Nan Xu , Xuezhe Ma

Although Large Language Models (LLMs) have demonstrated impressive text generation capabilities, they are easily misled by untruthful contexts provided by users or knowledge augmentation tools, leading to hallucinations. To alleviate LLMs…

计算与语言 · 计算机科学 2024-09-16 Tian Yu , Shaolei Zhang , Yang Feng

Retrieval-Augmented Generation (RAG) has emerged as a powerful framework to improve factuality in large language models (LLMs) by grounding their outputs in retrieved documents. However, ensuring perfect retrieval of relevant information…

计算与语言 · 计算机科学 2025-12-04 Zhan Peng Lee , Andre Lin , Calvin Tan

Large language models (LLMs) trained on datasets of publicly available source code have established a new state of the art in code generation tasks. However, these models are mostly unaware of the code that exists within a specific project,…

软件工程 · 计算机科学 2024-06-21 Aryaz Eghbali , Michael Pradel

Hallucination is a key roadblock for applications of Large Language Models (LLMs), particularly for enterprise applications that are sensitive to information accuracy. To address this issue, two general approaches have been explored:…

计算与语言 · 计算机科学 2024-10-15 Xinxi Chen , Li Wang , Wei Wu , Qi Tang , Yiyao Liu

Large Vision-Language Models (LVLMs) have achieved impressive performance in multimodal tasks, but they still suffer from hallucinations, i.e., generating content that is grammatically accurate but inconsistent with visual inputs. In this…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Chenxi Li , Yichen Guo , Benfang Qian , Jinhao You , Kai Tang , Yaosong Du , Zonghao Zhang , Xiande Huang

Retrieval-Augmented Generation (RAG) aims to reduce hallucination by grounding answers in retrieved evidence, yet hallucinated answers remain common even when relevant documents are available. Existing evaluations focus on answer-level or…

计算与语言 · 计算机科学 2026-05-21 Passant Elchafei , Monorama Swain , Shahed Masoudian , Markus Schedl

Can Large Language Models (LLMs) be trained to avoid hallucinating factual statements, and can Retrieval-Augmented Generation (RAG) be triggered only when necessary to reduce retrieval and computation costs? In this work, we address both…

Large Language Models (LLMs)-based question answering (QA) systems play a critical role in modern AI, demonstrating strong performance across various tasks. However, LLM-generated responses often suffer from hallucinations, unfaithful…

计算与语言 · 计算机科学 2026-01-29 Yuqing Zhao , Ziyao Liu , Yongsen Zheng , Kwok-Yan Lam

Large language models (LLMs) have demonstrated exceptional proficiency in language understanding. However, when LLMs align their outputs with deceptive and/or misleading prompts, the generated responses could deviate from the de facto…

计算与语言 · 计算机科学 2025-09-03 Zixuan Shangguan , Yanjie Dong , Lanjun Wang , Xiaoyi Fan , Victor C. M. Leung , Xiping Hu

Retrieval-augmented generation (RAG) has demonstrated effectiveness in mitigating the hallucination problem of large language models (LLMs). However, the difficulty of aligning the retriever with the diverse LLMs' knowledge preferences…

计算与语言 · 计算机科学 2024-07-19 Guanting Dong , Yutao Zhu , Chenghao Zhang , Zechen Wang , Zhicheng Dou , Ji-Rong Wen

Large Language Models (LLMs) excel in various language tasks but they often generate incorrect information, a phenomenon known as "hallucinations". Retrieval-Augmented Generation (RAG) aims to mitigate this by using document retrieval for…

信息检索 · 计算机科学 2024-07-18 Hamin Koo , Minseon Kim , Sung Ju Hwang

Despite the impressive capabilities of Large Vision-Language Models (LVLMs), they remain susceptible to hallucinations-generating content that is inconsistent with the input image. Existing training-free hallucination mitigation methods…

机器学习 · 计算机科学 2025-05-20 Kai Tang , Jinhao You , Xiuqi Ge , Hanze Li , Yichen Guo , Xiande Huang

Large language models (LLMs) have transformed various sectors, including education, finance, and medicine, by enhancing content generation and decision-making processes. However, their integration into the medical field is cautious due to…

信息检索 · 计算机科学 2025-04-15 Yifan Feng , Hao Hu , Xingliang Hou , Shiquan Liu , Shihui Ying , Shaoyi Du , Han Hu , Yue Gao