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Large vision-language models (LVLMs) often hallucinate when language priors dominate weak or ambiguous visual evidence. Existing contrastive decoding methods mitigate this problem by comparing predictions from the original image with those…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Tian Qin , Junzhe Chen , Yuqing Shi , Tianshu Zhang , Qiang Ju , Lijie Wen

Hallucination remains a fundamental challenge in vision-language models (VLMs), where autoregressive generation may produce linguistically plausible yet physically inconsistent or visually ungrounded responses due to likelihood maximization…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Qinwu Xu

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) have achieved impressive progress in multimodal reasoning, yet they remain prone to object hallucinations, generating descriptions of objects that are not present in the input image. Recent approaches…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Sohyeon Kim , Sang Yeon Yoon , Kyeongbo Kong

Recent work has demonstrated state-of-the-art results in large language model (LLM) hallucination detection and mitigation through consistency-based approaches which involve aggregating multiple responses sampled from a single LLM for a…

机器学习 · 计算机科学 2025-10-24 Demian Till , John Smeaton , Peter Haubrick , Gouse Saheb , Florian Graef , David Berman

Recent advancements in massively multilingual machine translation systems have significantly enhanced translation accuracy; however, even the best performing systems still generate hallucinations, severely impacting user trust. Detecting…

Hallucination, the generation of factually incorrect content, is a growing challenge in Large Language Models (LLMs). Existing detection and mitigation methods are often isolated and insufficient for domain-specific needs, lacking a…

The development of Large Language Models (LLMs) has significantly advanced various AI applications in commercial and scientific research fields, such as scientific literature summarization, writing assistance, and knowledge graph…

计算与语言 · 计算机科学 2024-10-17 Huiwen Wu , Xiaohan Li , Xiaogang Xu , Jiafei Wu , Deyi Zhang , Zhe Liu

The widespread adoption of large language and vision models in real-world applications has made urgent the need to address hallucinations -- instances where models produce incorrect or nonsensical outputs. These errors can propagate…

计算机视觉与模式识别 · 计算机科学 2025-10-02 Zhengyi Ho , Siyuan Liang , Dacheng Tao

Although Visual-Language Models (VLMs) have shown impressive capabilities in tasks like visual question answering and image captioning, they still struggle with hallucinations. Analysis of attention distribution in these models shows that…

计算机视觉与模式识别 · 计算机科学 2024-09-11 Xiaoyu Liang , Jiayuan Yu , Lianrui Mu , Jiedong Zhuang , Jiaqi Hu , Yuchen Yang , Jiangnan Ye , Lu Lu , Jian Chen , Haoji Hu

Large language models (LLMs) have revolutionized natural language processing, yet their tendency to hallucinate poses serious challenges for reliable deployment. Despite numerous hallucination detection methods, their evaluations often rely…

计算与语言 · 计算机科学 2025-08-15 Denis Janiak , Jakub Binkowski , Albert Sawczyn , Bogdan Gabrys , Ravid Shwartz-Ziv , Tomasz Kajdanowicz

Hallucination is often regarded as a major impediment for using large language models (LLMs), especially for knowledge-intensive tasks. Even when the training corpus consists solely of true statements, language models still generate…

计算与语言 · 计算机科学 2024-07-12 Yuji Zhang , Sha Li , Jiateng Liu , Pengfei Yu , Yi R. Fung , Jing Li , Manling Li , Heng Ji

Multimodal large reasoning models (MLRMs) often suffer from hallucinations that stem not only from insufficient visual grounding but also from imbalanced allocation between perception and reasoning processes. Building upon recent…

人工智能 · 计算机科学 2026-03-10 Haolang Lu , Bolun Chu , WeiYe Fu , Guoshun Nan , Junning Liu , Minghui Pan , Qiankun Li , Yi Yu , Hua Wang , Kun Wang

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.…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Zehao Wang , Xinpeng Liu , Yudonglin Zhang , Xiaoqian Wu , Zhou Fang , Yifan Fang , Junfu Pu , Cewu Lu , Yong-Lu Li

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.…

计算机视觉与模式识别 · 计算机科学 2025-09-29 Youxu Shi , Suorong Yang , Dong Liu

When asked to summarize articles or answer questions given a passage, large language models (LLMs) can hallucinate details and respond with unsubstantiated answers that are inaccurate with respect to the input context. This paper describes…

计算与语言 · 计算机科学 2024-10-04 Yung-Sung Chuang , Linlu Qiu , Cheng-Yu Hsieh , Ranjay Krishna , Yoon Kim , James Glass

Large Vision-Language Models often generate hallucinated content that is not grounded in its visual inputs. While prior work focuses on mitigating hallucinations, we instead explore leveraging hallucination correction as a training…

计算机视觉与模式识别 · 计算机科学 2025-02-24 Lingjun Zhao , Mingyang Xie , Paola Cascante-Bonilla , Hal Daumé , Kwonjoon Lee

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…

计算机视觉与模式识别 · 计算机科学 2025-03-27 Kazi Hasan Ibn Arif , Sajib Acharjee Dip , Khizar Hussain , Lang Zhang , Chris Thomas

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

Large Language Models suffer from hallucination, generating plausible yet factually incorrect content. Current mitigation strategies focus on post-generation correction, which is computationally expensive and fails to prevent unreliable…

计算与语言 · 计算机科学 2025-10-03 Nandakishor M