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Large Vision-Language Models (LVLMs) have advanced considerably, intertwining visual recognition and language understanding to generate content that is not only coherent but also contextually attuned. Despite their success, LVLMs still…

计算机视觉与模式识别 · 计算机科学 2023-11-29 Sicong Leng , Hang Zhang , Guanzheng Chen , Xin Li , Shijian Lu , Chunyan Miao , Lidong Bing

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…

计算机视觉与模式识别 · 计算机科学 2025-09-18 Weihang Wang , Xinhao Li , Ziyue Wang , Yan Pang , Jielei Zhang , Peiyi Li , Qiang Zhang , Longwen Gao

Object hallucination in Large Vision-Language Models (LVLMs) significantly hinders their reliable deployment. Existing methods struggle to balance efficiency and accuracy: they often require expensive reference models and multiple forward…

计算机视觉与模式识别 · 计算机科学 2026-02-27 Yangguang Lin , Quan Fang , Yufei Li , Jiachen Sun , Junyu Gao , Jitao Sang

Large Vision-Language Models (LVLMs) excel in diverse cross-modal tasks. However, object hallucination, where models produce plausible but inaccurate object descriptions, remains a significant challenge. In contrast to previous work…

计算机视觉与模式识别 · 计算机科学 2026-02-11 Yiyang Huang , Liang Shi , Yitian Zhang , Yi Xu , Yun Fu

Machine unlearning empowers individuals with the `right to be forgotten' by removing their private or sensitive information encoded in machine learning models. However, it remains uncertain whether MU can be effectively applied to…

计算机视觉与模式识别 · 计算机科学 2025-03-31 Jiaqi Li , Qianshan Wei , Chuanyi Zhang , Guilin Qi , Miaozeng Du , Yongrui Chen , Sheng Bi , Fan Liu

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

Large-scale vision-language pre-trained (VLP) models are prone to hallucinate non-existent visual objects when generating text based on visual information. In this paper, we systematically study the object hallucination problem from three…

计算与语言 · 计算机科学 2023-02-13 Wenliang Dai , Zihan Liu , Ziwei Ji , Dan Su , Pascale Fung

Despite their remarkable progress in multimodal understanding tasks, large vision language models (LVLMs) often suffer from "hallucinations", generating texts misaligned with the visual context. Existing methods aimed at reducing…

计算机视觉与模式识别 · 计算机科学 2025-10-17 Sreetama Sarkar , Yue Che , Alex Gavin , Peter A. Beerel , Souvik Kundu

Vision-Language Models (VLMs) occasionally generate outputs that contradict input images, constraining their reliability in real-world applications. While visual prompting is reported to suppress hallucinations by augmenting prompts with…

计算机视觉与模式识别 · 计算机科学 2025-02-24 Masayo Tomita , Katsuhiko Hayashi , Tomoyuki Kaneko

Recent advancements in Multimodal Large Language Models (MLLMs) have enabled them to effectively integrate vision and language, addressing a variety of downstream tasks. However, despite their significant success, these models still exhibit…

计算机视觉与模式识别 · 计算机科学 2025-06-10 Zixian Gao , Chao Yang , Zhanhui Zhou , Xing Xu , Chaochao Lu

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…

计算机视觉与模式识别 · 计算机科学 2024-08-01 Shi Liu , Kecheng Zheng , Wei Chen

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,…

计算机视觉与模式识别 · 计算机科学 2026-01-05 Hongseok Oh , Wonseok Hwang

The recent success of reinforcement learning (RL) in large reasoning models has inspired the growing adoption of RL for post-training Multimodal Large Language Models (MLLMs) to enhance their visual reasoning capabilities. Although many…

Multimodal large language models (MLLMs) may memorize sensitive cross-modal information during pretraining, making machine unlearning (MU) crucial. Existing methods typically evaluate unlearning effectiveness based on output deviations,…

计算与语言 · 计算机科学 2026-05-18 Jiahui Guang , Yingjie Zhu , Cuiyun Gao , Haiyan Wang , Jing Li , Di Shao , Zhaoquan Gu

The advancement of Large Vision-Language Models (LVLMs) has increasingly highlighted the critical issue of their tendency to hallucinate non-existing objects in the images. To address this issue, previous works focused on using specially…

机器学习 · 计算机科学 2025-06-13 Linxi Zhao , Yihe Deng , Weitong Zhang , Quanquan Gu

The rapidly developing Large Vision Language Models (LVLMs) have shown notable capabilities on a range of multi-modal tasks, but still face the hallucination phenomena where the generated texts do not align with the given contexts,…

计算机视觉与模式识别 · 计算机科学 2025-01-07 Wenyi Xiao , Ziwei Huang , Leilei Gan , Wanggui He , Haoyuan Li , Zhelun Yu , Fangxun Shu , Hao Jiang , Linchao Zhu

Despite the rapid success of Large Vision-Language Models (LVLMs), a persistent challenge is their tendency to generate hallucinated content, undermining reliability in real-world use. Existing training-free methods address hallucinations…

计算机视觉与模式识别 · 计算机科学 2026-01-05 Neeraj Anand , Samyak Jha , Udbhav Bamba , Rahul Rahaman

Large vision-language models (LVLMs) suffer from hallucination a lot, generating responses that apparently contradict to the image content occasionally. The key problem lies in its weak ability to comprehend detailed content in a…

计算机视觉与模式识别 · 计算机科学 2023-11-29 Zhiyang Chen , Yousong Zhu , Yufei Zhan , Zhaowen Li , Chaoyang Zhao , Jinqiao Wang , Ming Tang

Object hallucination is a critical issue in Large Vision-Language Models (LVLMs), where outputs include objects that do not appear in the input image. A natural question arises from this phenomenon: Which component of the LVLM pipeline…

计算机视觉与模式识别 · 计算机科学 2026-02-26 Lingfeng Ren , Weihao Yu , Runpeng Yu , Xinchao Wang

The undesired memorization of sensitive information by Large Language Models (LLMs) has emphasized the need for safety mechanisms that can regulate model behavior. This has led to the development of machine unlearning techniques that enable…

机器学习 · 计算机科学 2025-10-10 Anu Agarwal , Mihir Pamnani , Dilek Hakkani-Tur