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Vision-language models (VLMs) frequently generate hallucinated content plausible but incorrect claims about image content. We propose a training-free self-correction framework enabling VLMs to iteratively refine responses through…

计算机视觉与模式识别 · 计算机科学 2025-12-11 Kassoum Sanogo , Renzo Ardiccioni

Hallucinations in multimodal models have been extensively studied using benchmarks that probe reliability in image-text query settings. However, the effect of spoken queries on multimodal hallucinations remains largely unexplored, despite…

声音 · 计算机科学 2026-03-20 Hansol Park , Hoseong Ahn , Junwon Moon , Yejin Lee , Kyuhong Shim

Although large Language Models (LLMs) have achieved remarkable success, their practical application is often hindered by the generation of non-factual content, which is called "hallucination". Ensuring the reliability of LLMs' outputs is a…

计算与语言 · 计算机科学 2025-09-16 Yue Ding , Xiaofang Zhu , Tianze Xia , Junfei Wu , Xinlong Chen , Qiang Liu , Liang Wang

In this paper, we establish a benchmark named HalluQA (Chinese Hallucination Question-Answering) to measure the hallucination phenomenon in Chinese large language models. HalluQA contains 450 meticulously designed adversarial questions,…

Large language models (LLMs) are notorious for hallucinating, i.e., producing erroneous claims in their output. Such hallucinations can be dangerous, as occasional factual inaccuracies in the generated text might be obscured by the rest of…

Large language models are increasingly being used in patient-facing medical question answering, where hallucinated outputs can vary widely in potential harm. However, existing hallucination standards and evaluation metrics focus primarily…

计算与语言 · 计算机科学 2026-03-02 Savan Doshi

Large language models (LLMs), such as ChatGPT, are prone to generate hallucinations, i.e., content that conflicts with the source or cannot be verified by the factual knowledge. To understand what types of content and to which extent LLMs…

计算与语言 · 计算机科学 2023-10-24 Junyi Li , Xiaoxue Cheng , Wayne Xin Zhao , Jian-Yun Nie , Ji-Rong Wen

The reliability of Large Language Models (LLMs) in high-stakes domains such as healthcare, law, and scientific discovery is often compromised by hallucinations. These failures typically stem from two sources: data-driven hallucinations and…

机器学习 · 计算机科学 2026-03-03 Xinyue Zeng , Junhong Lin , Yujun Yan , Feng Guo , Liang Shi , Jun Wu , Dawei Zhou

Reasoning Large Language Models (R-LLMs) have significantly advanced complex reasoning tasks but often struggle with factuality, generating substantially more hallucinations than their non-reasoning counterparts on long-form factuality…

计算与语言 · 计算机科学 2025-08-08 Xilun Chen , Ilia Kulikov , Vincent-Pierre Berges , Barlas Oğuz , Rulin Shao , Gargi Ghosh , Jason Weston , Wen-tau Yih

Large Language Models (LLMs) are prone to hallucination with non-factual or unfaithful statements, which undermines the applications in real-world scenarios. Recent researches focus on uncertainty-based hallucination detection, which…

计算与语言 · 计算机科学 2025-04-08 Kedi Chen , Qin Chen , Jie Zhou , Xinqi Tao , Bowen Ding , Jingwen Xie , Mingchen Xie , Peilong Li , Feng Zheng , Liang He

Medical Large Language Models (MLLMs) play a crucial role in ophthalmic diagnosis, holding significant potential to address vision-threatening diseases. However, their accuracy is constrained by hallucinations stemming from limited…

计算与语言 · 计算机科学 2025-10-02 Xiaoyu Pan , Yang Bai , Ke Zou , Yang Zhou , Jun Zhou , Huazhu Fu , Yih-Chung Tham , Yong Liu

Large language models (LLMs) frequently generate confident yet inaccurate responses, introducing significant risks for deployment in safety-critical domains. We present a novel, test-time approach to detecting model hallucination through…

机器学习 · 计算机科学 2025-10-07 Hazel Kim , Tom A. Lamb , Adel Bibi , Philip Torr , Yarin Gal

Large language models (LLMs) exhibit strong generative capabilities but remain vulnerable to confabulations, fluent yet unreliable outputs that vary arbitrarily even under identical prompts. Leveraging a quantum tensor network based…

计算与语言 · 计算机科学 2026-02-03 Pragatheeswaran Vipulanandan , Kamal Premaratne , Dilip Sarkar

Hallucination in large language models (LLMs) has been widely studied in recent years, with progress in both detection and mitigation aimed at improving truthfulness. Yet, a critical side effect remains largely overlooked: enhancing…

计算与语言 · 计算机科学 2026-02-02 Omar Mahmoud , Ali Khalil , Buddhika Laknath Semage , Thommen George Karimpanal , Santu Rana

Prior works have shown that fine-tuning on new knowledge can induce factual hallucinations in large language models (LLMs), leading to incorrect outputs when evaluated on previously known information. However, the specific manifestations of…

计算与语言 · 计算机科学 2026-04-20 Renfei Dang , Peng Hu , Zhejian Lai , Changjiang Gao , Min Zhang , Shujian Huang

Hallucination in large language models (LLMs) continues to be a significant issue, particularly in tasks like question answering, where models often generate plausible yet incorrect or irrelevant information. Although various methods have…

计算与语言 · 计算机科学 2026-04-09 Ziqin Luo , Yihao Quan , Xiaofeng Zhang , Xiaosong Yuan , Chen Shen

Hallucination in Large Language Models (LLMs) refers to the generation of content that is not faithful to the input or the real-world facts. This paper provides a rigorous treatment of hallucination in LLMs, including formal definitions and…

计算与语言 · 计算机科学 2025-08-01 Esmail Gumaan

The hallucination problem in multimodal large language models (MLLMs) remains a common issue. Although image tokens occupy a majority of the input sequence of MLLMs, there is limited research to explore the relationship between image tokens…

计算机视觉与模式识别 · 计算机科学 2024-11-18 Xiaofeng Zhang , Yihao Quan , Chaochen Gu , Chen Shen , Xiaosong Yuan , Shaotian Yan , Hao Cheng , Kaijie Wu , Jieping Ye

To address hallucination issues in large language models (LLMs), this paper proposes a method for mitigating prompt-induced hallucinations. Building on a knowledge distillation chain-style model, we introduce a code module to guide…

计算与语言 · 计算机科学 2026-01-07 Jinbo Hao , Kai Yang , Qingzhen Su , Yang Chen , Yifan Li , Chao Jiang

Despite the rapid advancement of large language models, they remain highly susceptible to generating hallucinations, which significantly hinders their widespread application. Hallucination research requires dynamic and fine-grained…

计算与语言 · 计算机科学 2025-04-15 Xu Zhang , Zhifei Liu , Jiahao Wang , Huixuan Zhang , Fan Xu , Junzhe Zhang , Xiaojun Wan