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Hallucination poses a challenge to the deployment of large vision-language models (LVLMs) in applications. Unlike in large language models (LLMs), hallucination in LVLMs often arises from misalignments between visual inputs and textual…

Computer Vision and Pattern Recognition · Computer Science 2024-10-23 Sheng Liu , Haotian Ye , Lei Xing , James Zou

Multimodal Large Language Models (MLLMs) have garnered significant attention recently and demonstrate outstanding capabilities in various tasks such as OCR, VQA, captioning, $\textit{etc}$. However, hallucination remains a persistent issue.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Zehao Wang , Xinpeng Liu , Yudonglin Zhang , Xiaoqian Wu , Zhou Fang , Yifan Fang , Junfu Pu , Cewu Lu , Yong-Lu Li

Large vision-language models (LVLMs) achieve impressive performance on multimodal tasks but often suffer from hallucination, and confidently describe objects or attributes not present in the image. Current training-free interventions…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Mehrdad Fazli , Bowen Wei , Ahmet Sari , Ziwei Zhu

Large Language Models (LLMs) excel in fluency but risk producing inaccurate content, called "hallucinations." This paper outlines a standardized process for categorizing fine-grained hallucination types and proposes an innovative…

Computation and Language · Computer Science 2024-07-02 Kunquan Deng , Zeyu Huang , Chen Li , Chenghua Lin , Min Gao , Wenge Rong

LVLMs have achieved strong multimodal reasoning capabilities but remain prone to hallucinations, producing outputs inconsistent with visual inputs or user instructions. Existing training-free methods, including contrastive decoding and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-18 Guangtao Lyu , Qi Liu , Chenghao Xu , Jiexi Yan , Muli Yang , Xueting Li , Fen Fang , Cheng Deng

Large language models (LLMs) frequently generate factually incorrect or unsupported content, commonly referred to as hallucinations. Prior work has explored decoding strategies, retrieval augmentation, and supervised fine-tuning for…

Machine Learning · Computer Science 2026-01-22 Bodla Krishna Vamshi , Rohan Bhatnagar , Haizhao Yang

Vision-Language Models (VLMs) are frequently undermined by object hallucination--generating content that contradicts visual reality--due to an over-reliance on linguistic priors. We introduce Positive-and-Negative Decoding (PND), a…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Yubo Jiang , Xin Yang , Abudukelimu Wuerkaixi , Zheming Yuan , Xuxin Cheng , Fengying Xie , Zhiguo Jiang , Cao Liu , Ke Zeng , Haopeng Zhang

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

Large language models (LLMs) have become pervasive in our everyday life. Yet, a fundamental obstacle prevents their use in many critical applications: their propensity to generate fluent, human-quality content that is not grounded in…

Computation and Language · Computer Science 2025-10-30 Kensuke Mitsuzawa , Damien Garreau

Multimodal Chain-of-Thought (MCoT) models have demonstrated impressive capability in complex visual reasoning tasks. Unfortunately, recent studies reveal that they suffer from severe hallucination problems due to diminished visual attention…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Ji Ma , Wei Suo , Peng Wang , Yanning Zhang

Current Large Vision-Language Models (LVLMs) have demonstrated remarkable capabilities in understanding multimodal data, but their potential remains underexplored for deepfake detection due to the misalignment of their knowledge and…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Peipeng Yu , Jianwei Fei , Hui Gao , Xuan Feng , Zhihua Xia , Chip Hong Chang

Despite the many advances of Large Language Models (LLMs) and their unprecedented rapid evolution, their impact and integration into every facet of our daily lives is limited due to various reasons. One critical factor hindering their…

Computation and Language · Computer Science 2024-08-20 Yakir Yehuda , Itzik Malkiel , Oren Barkan , Jonathan Weill , Royi Ronen , Noam Koenigstein

Object hallucination in Large Vision-Language Models (LVLMs) severely compromises their reliability in real-world applications, posing a critical barrier to their deployment in high-stakes scenarios such as autonomous driving and medical…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Han Sun , Qin Li , Peixin Wang , Min Zhang

Recently, Large Vision-Language Models (LVLMs) show remarkable performance across various domains. However, these models suffer from object hallucination. In this work, we study object hallucination primarily in a discriminative,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Hongseok Oh , Wonseok Hwang

Multilingual Large Language Models(MLLMs) demonstrate strong generalization across languages, yet they remain prone to hallucinations, especially in low-resource languages, due to training data imbalances. These hallucinations, which…

Computation and Language · Computer Science 2025-07-22 Weihua Zheng , Roy Ka-Wei Lee , Zhengyuan Liu , Kui Wu , AiTi Aw , Bowei Zou

This paper presents a way of enhancing the reliability of Large Multi-modal Models (LMMs) in addressing hallucination, where the models generate cross-modal inconsistent responses. Without additional training, we propose Counterfactual…

Computer Vision and Pattern Recognition · Computer Science 2024-06-24 Junho Kim , Yeon Ju Kim , Yong Man Ro

Large vision-language models (LVLMs) have significantly improved multimodal reasoning tasks, such as visual question answering and image captioning. These models embed multimodal facts within their parameters, rather than relying on…

Computation and Language · Computer Science 2025-02-18 Shengkang Wang , Hongzhan Lin , Ziyang Luo , Zhen Ye , Guang Chen , Jing Ma

Large Vision Language Models (LVLMs) have demonstrated remarkable capabilities in understanding and describing visual content, achieving state-of-the-art performance across various vision-language tasks. However, these models often generate…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Kazi Hasan Ibn Arif , Sajib Acharjee Dip , Khizar Hussain , Lang Zhang , Chris Thomas

Hallucination is a persistent challenge in large language models (LLMs), where even with rigorous quality control, models often generate distorted facts. This paradox, in which error generation continues despite high-quality training data,…

Computation and Language · Computer Science 2025-02-25 Yuji Zhang , Sha Li , Cheng Qian , Jiateng Liu , Pengfei Yu , Chi Han , Yi R. Fung , Kathleen McKeown , Chengxiang Zhai , Manling Li , Heng Ji

Large Vision-Language Models (LVLMs) have recently shown promising results on various multimodal tasks, even achieving human-comparable performance in certain cases. Nevertheless, LVLMs remain prone to hallucinations -- they often rely…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Kyungryul Back , Seongbeom Park , Milim Kim , Mincheol Kwon , SangHyeok Lee , Hyunyoung Lee , Junhee Cho , Seunghyun Park , Jinkyu Kim
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