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Related papers: PruneHal: Reducing Hallucinations in Multi-modal L…

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While Large Vision-Language Models (LVLMs) have rapidly advanced in recent years, the prevalent issue known as the `hallucination' problem has emerged as a significant bottleneck, hindering their real-world deployments. Existing methods…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Fushuo Huo , Wenchao Xu , Zhong Zhang , Haozhao Wang , Zhicheng Chen , Peilin Zhao

Large vision-language models (LVLMs) have demonstrated impressive capabilities across diverse multimodal tasks, yet they remain highly susceptible to visual hallucinations (VH), often producing confident but inaccurate descriptions of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Lexiang Tang , Xianwei Zhuang , Bang Yang , Zhiyuan Hu , Hongxiang Li , Lu Ma , Jinghan Ru , Yuexian Zou

Although large vision-language models (LVLMs) have demonstrated remarkable capabilities, they are prone to hallucinations in multi-image tasks. We attribute this issue to limitations in existing attention mechanisms and insufficient…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Xiaochen Yang , Hao Fang , Jiawei Kong , Yaoxin Mao , Bin Chen , Shu-Tao Xia

Hallucinations in large vision-language models (LVLMs) are a significant challenge, i.e., generating objects that are not presented in the visual input, which impairs their reliability. Recent studies often attribute hallucinations to a…

Computation and Language · Computer Science 2025-08-13 Yuying Shang , Xinyi Zeng , Yutao Zhu , Xiao Yang , Zhengwei Fang , Jingyuan Zhang , Jiawei Chen , Zinan Liu , Yu Tian

Hallucination, posed as a pervasive challenge of multi-modal large language models (MLLMs), has significantly impeded their real-world usage that demands precise judgment. Existing methods mitigate this issue with either training with…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Qidong Huang , Xiaoyi Dong , Pan Zhang , Bin Wang , Conghui He , Jiaqi Wang , Dahua Lin , Weiming Zhang , Nenghai Yu

Multimodal large language models (MLLMs) have achieved remarkable success across diverse vision-language tasks, yet they remain highly susceptible to hallucinations, producing content that is fluent but inconsistent with visual evidence.…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Youxu Shi , Suorong Yang , Dong Liu

Large Vision-Language Models (LVLMs) rely on dense visual tokens to capture fine-grained visual information, but processing all these tokens incurs substantial computational and memory overhead during inference. To address this issue, we…

Machine Learning · Computer Science 2026-03-24 Xu Li , Yi Zheng , Yuxuan Liang , Zhe Liu , Xiaolei Chen , Haotian Chen , Rui Zhu , Xiangyang Xue

Large Vision-Language Models (LVLMs) have advanced multimodal learning but face high computational costs due to the large number of visual tokens, motivating token pruning to improve inference efficiency. The key challenge lies in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Ao Li , Yuxiang Duan , Jinghui Zhang , Congbo Ma , Yutong Xie , Gustavo Carneiro , Mohammad Yaqub , Hu Wang

Existing Large Vision-Language Models (LVLMs) exhibit insufficient visual attention, leading to hallucinations. To alleviate this problem, some previous studies adjust and amplify visual attention. These methods present a limitation that…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Jingyi Wang , Fei Li , Rujie Liu

Existing Large Vision-Language Models (LVLMs) primarily align image features of vision encoder with Large Language Models (LLMs) to leverage their superior text generation capabilities. However, the scale disparity between vision encoder…

Computer Vision and Pattern Recognition · Computer Science 2024-08-01 Shi Liu , Kecheng Zheng , Wei Chen

Hallucinations in large language models (LLMs) pose significant safety concerns that impede their broader deployment. Recent research in hallucination detection has demonstrated that LLMs' internal representations contain truthfulness…

Machine Learning · Computer Science 2025-11-11 Mengjia Niu , Hamed Haddadi , Guansong Pang

Large language models (LLMs) have shown remarkable performance in natural language processing (NLP) tasks. To comprehend and execute diverse human instructions over image data, instruction-tuned large vision-language models (LVLMs) have…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Lei Wang , Jiabang He , Shenshen Li , Ning Liu , Ee-Peng Lim

Multi-Modal Large Language Models (MLLMs) stand out in various tasks but still struggle with hallucinations. While recent training-free mitigation methods mostly introduce additional inference overhead via retrospection strategy and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Chongjun Tu , Peng Ye , Dongzhan Zhou , Lei Bai , Gang Yu , Tao Chen , Wanli Ouyang

Multimodal Large Language Models (MLLMs) deliver detailed responses on vision-language tasks, yet remain susceptible to object hallucination (introducing objects not present in the image), undermining reliability in practice. Prior efforts…

Machine Learning · Computer Science 2026-02-26 Shiwei Tan , Hengyi Wang , Weiyi Qin , Qi Xu , Zhigang Hua , Hao Wang

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…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Xiaofeng Zhang , Yihao Quan , Chaochen Gu , Chen Shen , Xiaosong Yuan , Shaotian Yan , Hao Cheng , Kaijie Wu , Jieping Ye

Multimodal large language models (MLLMs) incur substantial inference cost due to the processing of hundreds of visual tokens per image. Although token pruning has proven effective for accelerating inference, determining when and where to…

Computer Vision and Pattern Recognition · Computer Science 2026-02-20 Yahong Wang , Juncheng Wu , Zhangkai Ni , Chengmei Yang , Yihang Liu , Longzhen Yang , Yuyin Zhou , Ying Wen , Lianghua He

Instruction-following Vision Large Language Models (VLLMs) have achieved significant progress recently on a variety of tasks. These approaches merge strong pre-trained vision models and large language models (LLMs). Since these components…

Machine Learning · Computer Science 2024-02-20 Yiyang Zhou , Chenhang Cui , Rafael Rafailov , Chelsea Finn , Huaxiu Yao

Despite their impressive capabilities, multimodal large language models (MLLMs) are prone to hallucinations, i.e., the generated content that is nonsensical or unfaithful to input sources. Unlike in LLMs, hallucinations in MLLMs often stem…

Computer Vision and Pattern Recognition · Computer Science 2025-05-09 Xin Zou , Yizhou Wang , Yibo Yan , Yuanhuiyi Lyu , Kening Zheng , Sirui Huang , Junkai Chen , Peijie Jiang , Jia Liu , Chang Tang , Xuming Hu

Large Language Models (LLMs) often produce hallucinations in retrieval-augmented or long-context generation, even when relevant evidence is present. This stems from two issues: head importance is treated as input-agnostic, and raw attention…

Computation and Language · Computer Science 2025-09-09 Xin Tong , Zhi Lin , Jingya Wang , Bo Jin

Recent advancements in large vision-language models (LVLMs) have demonstrated impressive capability in visual information understanding with human language. Despite these advances, LVLMs still face challenges with multimodal hallucination,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-16 Zongbo Han , Zechen Bai , Haiyang Mei , Qianli Xu , Changqing Zhang , Mike Zheng Shou