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Large Vision Language Models (LVLMs) are becoming increasingly important in the medical domain, yet Medical LVLMs (Med-LVLMs) frequently generate hallucinations due to limited expertise and the complexity of medical applications. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Aofei Chang , Le Huang , Parminder Bhatia , Taha Kass-Hout , Fenglong Ma , Cao Xiao

Hallucinations pose a significant challenge to the reliability and alignment of Large Language Models (LLMs), limiting their widespread acceptance beyond chatbot applications. Despite ongoing efforts, hallucinations remain a prevalent…

Computation and Language · Computer Science 2024-02-27 Cem Uluoglakci , Tugba Taskaya Temizel

Given the higher information load processed by large vision-language models (LVLMs) compared to single-modal LLMs, detecting LVLM hallucinations requires more human and time expense, and thus rise a wider safety concerns. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Ruiyang Zhang , Hu Zhang , Zhedong Zheng

Despite impressive advances in Natural Language Generation (NLG) and Large Language Models (LLMs), researchers are still unclear about important aspects of NLG evaluation. To substantiate this claim, I examine current classifications of…

Computation and Language · Computer Science 2024-01-17 Kees van Deemter

Object hallucination in Large Vision-Language Models (LVLMs) significantly impedes their real-world applicability. As the primary component for accurately interpreting visual information, the choice of visual encoder is pivotal. We…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Weihang Wang , Xinhao Li , Ziyue Wang , Yan Pang , Jielei Zhang , Peiyi Li , Qiang Zhang , Longwen Gao

Hallucinations in Large Vision-Language Models (LVLMs) significantly undermine their reliability, motivating researchers to explore the causes of hallucination. However, most studies primarily focus on the language aspect rather than the…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Zhangqi Jiang , Junkai Chen , Beier Zhu , Tingjin Luo , Yankun Shen , Xu Yang

Large Vision-Language Models (LVLMs) have recently demonstrated remarkable progress, yet hallucination remains a critical barrier, particularly in chart understanding, which requires sophisticated perceptual and cognitive abilities as well…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Xingqi Wang , Yiming Cui , Xin Yao , Shijin Wang , Guoping Hu , Xiaoyu Qin

Large Vision Language Models (LVLMs) have achieved significant progress in integrating visual and textual inputs for multimodal reasoning. However, a recurring challenge is ensuring these models utilize visual information as effectively as…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Estelle Aflalo , Gabriela Ben Melech Stan , Tiep Le , Man Luo , Shachar Rosenman , Sayak Paul , Shao-Yen Tseng , Vasudev Lal

While Large Language Models (LLMs) have emerged as powerful foundational models to solve a variety of tasks, they have also been shown to be prone to hallucinations, i.e., generating responses that sound confident but are actually incorrect…

Computation and Language · Computer Science 2026-04-29 Jiawei Li , Akshayaa Magesh , Venugopal V. Veeravalli

The rapid advancement of Large Language Models (LLMs) has brought a pressing challenge: how to reliably assess hallucinations to guarantee model trustworthiness. Although Automatic Hallucination Evaluation (AHE) has become an indispensable…

Computation and Language · Computer Science 2025-10-22 Siya Qi , Lin Gui , Yulan He , Zheng Yuan

Hallucinations in Large Language Models (LLMs) pose a significant challenge, generating misleading or unverifiable content that undermines trust and reliability. Existing evaluation methods, such as KnowHalu, employ multi-stage verification…

Computation and Language · Computer Science 2026-04-10 Chenggong Zhang , Haopeng Wang , Hexi Meng

The troubling rise of hallucination presents perhaps the most significant impediment to the advancement of responsible AI. In recent times, considerable research has focused on detecting and mitigating hallucination in Large Language Models…

Artificial Intelligence · Computer Science 2024-04-02 Anku Rani , Vipula Rawte , Harshad Sharma , Neeraj Anand , Krishnav Rajbangshi , Amit Sheth , Amitava Das

Large language models (LLMs) are highly capable but face latency challenges in real-time applications, such as conducting online hallucination detection. To overcome this issue, we propose a novel framework that leverages a small language…

Computation and Language · Computer Science 2024-08-26 Mengya Hu , Rui Xu , Deren Lei , Yaxi Li , Mingyu Wang , Emily Ching , Eslam Kamal , Alex Deng

The recent advancements in Large Language Models (LLMs) have garnered widespread acclaim for their remarkable emerging capabilities. However, the issue of hallucination has parallelly emerged as a by-product, posing significant concerns.…

Large Vision-Language Models (LVLMs) often suffer from object hallucination, making erroneous judgments about the presence of objects in images. We propose this primar- ily stems from spurious correlations arising when models strongly…

Artificial Intelligence · Computer Science 2025-11-14 Zhe Xu , Zhicai Wang , Junkang Wu , Jinda Lu , Xiang Wang

Multimodal Large Language Models (MLLMs) often generate hallucinations, where the output deviates from the visual content. Given that these hallucinations can take diverse forms, detecting hallucinations at a fine-grained level is essential…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Yuiga Wada , Kazuki Matsuda , Komei Sugiura , Graham Neubig

Despite significant strides in multimodal tasks, Multimodal Large Language Models (MLLMs) are plagued by the critical issue of hallucination. The reliable detection of such hallucinations in MLLMs has, therefore, become a vital aspect of…

Computation and Language · Computer Science 2024-05-28 Xiang Chen , Chenxi Wang , Yida Xue , Ningyu Zhang , Xiaoyan Yang , Qiang Li , Yue Shen , Lei Liang , Jinjie Gu , Huajun Chen

As large language models continue to develop in the field of AI, text generation systems are susceptible to a worrisome phenomenon known as hallucination. In this study, we summarize recent compelling insights into hallucinations in LLMs.…

Computation and Language · Computer Science 2023-09-14 Hongbin Ye , Tong Liu , Aijia Zhang , Wei Hua , Weiqiang Jia

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…

Computation and Language · Computer Science 2025-08-01 Esmail Gumaan

Instruction tuned Large Vision Language Models (LVLMs) have significantly advanced in generalizing across a diverse set of multi-modal tasks, especially for Visual Question Answering (VQA). However, generating detailed responses that are…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Anisha Gunjal , Jihan Yin , Erhan Bas