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Recent black-box counterfactual generation frameworks fail to take into account the semantic content of the proposed edits, while relying heavily on training to guide the generation process. We propose a novel, plug-and-play black-box…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Nikolaos Spanos , Maria Lymperaiou , Giorgos Filandrianos , Konstantinos Thomas , Athanasios Voulodimos , Giorgos Stamou

Hallucinations in large language model (LLM) outputs severely limit their reliability in knowledge-intensive tasks such as question answering. To address this challenge, we introduce REFIND (Retrieval-augmented Factuality hallucINation…

Computation and Language · Computer Science 2025-04-09 DongGeon Lee , Hwanjo Yu

The Large Visual Language Models (LVLMs) enhances user interaction and enriches user experience by integrating visual modality on the basis of the Large Language Models (LLMs). It has demonstrated their powerful information processing and…

Artificial Intelligence · Computer Science 2024-10-22 Wei Lan , Wenyi Chen , Qingfeng Chen , Shirui Pan , Huiyu Zhou , Yi Pan

Despite the recent breakthroughs achieved by Large Vision Language Models (LVLMs) in understanding and responding to complex visual-textual contexts, their inherent hallucination tendencies limit their practical application in real-world…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Junzhe Chen , Tianshu Zhang , Shiyu Huang , Yuwei Niu , Linfeng Zhang , Lijie Wen , Xuming Hu

Multimodal hallucination in multimodal large language models (MLLMs) restricts the correctness of MLLMs. However, multimodal hallucinations are multi-sourced and arise from diverse causes. Existing benchmarks fail to adequately distinguish…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Bowen Dong , Minheng Ni , Zitong Huang , Guanglei Yang , Wangmeng Zuo , Lei Zhang

Vision-language models (VLMs) excel in semantic tasks but falter at a core human capability: detecting hidden content in optical illusions or AI-generated images through perceptual adjustments like zooming. We introduce HC-Bench, a…

Computation and Language · Computer Science 2025-10-16 Sifan Li , Yujun Cai , Yiwei Wang

Despite significant strides in factual reliability, errors -- often termed hallucinations -- remain a major concern for generative AI, especially as LLMs are increasingly expected to be helpful in more complex or nuanced setups. Yet even in…

Computation and Language · Computer Science 2026-05-05 Gal Yona , Mor Geva , Yossi Matias

Large pretrained generative models like GPT-3 often suffer from hallucinating non-existent or incorrect content, which undermines their potential merits in real applications. Existing work usually attempts to detect these hallucinations…

Computation and Language · Computer Science 2022-04-05 Tianyu Liu , Yizhe Zhang , Chris Brockett , Yi Mao , Zhifang Sui , Weizhu Chen , Bill Dolan

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

Despite the groundbreaking advancements made by large language models (LLMs), hallucination remains a critical bottleneck for their deployment in high-stakes domains. Existing classification-based methods mainly rely on static and passive…

Machine Learning · Computer Science 2026-05-12 Linggang Kong , Lei Wu , Yunlong Zhang , Xiaofeng Zhong , Zhen Wang , Yongjie Wang , Yao Pan

Video language models (Video-LLMs) are prone to hallucinations, often generating plausible but ungrounded content when visual evidence is weak, ambiguous, or biased. Existing decoding methods, such as contrastive decoding (CD), rely on…

Artificial Intelligence · Computer Science 2026-02-10 Qixin Xiao

Multimodal Large Language Models (MLLMs) have shown impressive perception and reasoning capabilities, yet they often suffer from hallucinations -- generating outputs that are linguistically coherent but inconsistent with the context of the…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Bingkui Tong , Jiaer Xia , Kaiyang Zhou

While large vision-language models (LVLMs) have shown impressive capabilities in generating plausible responses correlated with input visual contents, they still suffer from hallucinations, where the generated text inaccurately reflects…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Yi-Lun Lee , Yi-Hsuan Tsai , Wei-Chen Chiu

Vision-Language Models (VLMs) are increasingly deployed in autonomous driving and embodied AI systems, where reliable perception is critical for safe semantic reasoning and decision-making. While recent VLMs demonstrate strong performance…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Guo Cheng

Large Vision-Language Models (LVLMs) have demonstrated remarkable performance in complex multimodal tasks. However, these models still suffer from hallucinations, particularly when required to implicitly recognize or infer diverse visual…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Ashish Seth , Dinesh Manocha , Chirag Agarwal

Hallucinations in large language models (LLMs) refer to the phenomenon of LLMs producing responses that are coherent yet factually inaccurate. This issue undermines the effectiveness of LLMs in practical applications, necessitating research…

Computation and Language · Computer Science 2024-06-11 Weihang Su , Changyue Wang , Qingyao Ai , Yiran HU , Zhijing Wu , Yujia Zhou , Yiqun Liu

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…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Yangguang Lin , Quan Fang , Yufei Li , Jiachen Sun , Junyu Gao , Jitao Sang

Multimodal Large Language Models (MLLMs) excel in vision-language tasks, such as image captioning and visual question answering. However, they often suffer from over-reliance on spurious correlations, primarily due to linguistic priors that…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Yixuan Wu , Yang Zhang , Jian Wu , Philip Torr , Jindong Gu

Large vision-language models (LVLMs) are prone to hallucinations, where certain contextual cues in an image can trigger the language module to produce overconfident and incorrect reasoning about abnormal or hypothetical objects. While some…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Xiyang Wu , Tianrui Guan , Dianqi Li , Shuaiyi Huang , Xiaoyu Liu , Xijun Wang , Ruiqi Xian , Abhinav Shrivastava , Furong Huang , Jordan Lee Boyd-Graber , Tianyi Zhou , Dinesh Manocha

Hallucinations pose a significant challenge to the reliability of large language models (LLMs) in critical domains. Recent benchmarks designed to assess LLM hallucinations within conventional NLP tasks, such as knowledge-intensive question…

Computation and Language · Computer Science 2024-09-17 Zhiying Zhu , Yiming Yang , Zhiqing Sun