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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

Large Language Models (LLMs) often generate hallucinations, producing outputs that are contextually inaccurate or factually incorrect. We introduce HICD, a novel method designed to induce hallucinations for contrastive decoding to mitigate…

Computation and Language · Computer Science 2025-05-26 Xinyan Jiang , Hang Ye , Yongxin Zhu , Xiaoying Zheng , Zikang Chen , Jun Gong

Large Vision-Language Models (LVLMs) are an extension of Large Language Models (LLMs) that facilitate processing both image and text inputs, expanding AI capabilities. However, LVLMs struggle with object hallucinations due to their reliance…

Computation and Language · Computer Science 2024-08-12 Avshalom Manevich , Reut Tsarfaty

Large language models (LLMs) have demonstrated exceptional proficiency in language understanding. However, when LLMs align their outputs with deceptive and/or misleading prompts, the generated responses could deviate from the de facto…

Computation and Language · Computer Science 2025-09-03 Zixuan Shangguan , Yanjie Dong , Lanjun Wang , Xiaoyi Fan , Victor C. M. Leung , Xiping Hu

Despite their impressive capabilities, large language models (LLMs) have been observed to generate responses that include inaccurate or fabricated information, a phenomenon commonly known as ``hallucination''. In this work, we propose a…

Computation and Language · Computer Science 2024-03-12 Yue Zhang , Leyang Cui , Wei Bi , Shuming Shi

The impressive capabilities of large language models (LLMs) have attracted extensive interests of applying LLMs to medical field. However, the complex nature of clinical environments presents significant hallucination challenges for LLMs,…

Computation and Language · Computer Science 2024-10-22 Derong Xu , Ziheng Zhang , Zhihong Zhu , Zhenxi Lin , Qidong Liu , Xian Wu , Tong Xu , Xiangyu Zhao , Yefeng Zheng , Enhong Chen

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…

Computation and Language · Computer Science 2024-10-17 Huiwen Wu , Xiaohan Li , Xiaogang Xu , Jiafei Wu , Deyi Zhang , Zhe Liu

Although multimodal large language models (MLLMs) exhibit remarkable reasoning capabilities on complex multimodal understanding tasks, they still suffer from the notorious hallucination issue: generating outputs misaligned with obvious…

Machine Learning · Computer Science 2025-11-04 Wei Chen , Xin Yan , Bin Wen , Fan Yang , Tingting Gao , Di Zhang , Long Chen

Large language models (LLMs) excel at natural language understanding and generation but remain vulnerable to factual errors, limiting their reliability in knowledge-intensive tasks. While decoding-time strategies provide a promising…

Artificial Intelligence · Computer Science 2025-10-06 Jingze Zhu , Yongliang Wu , Wenbo Zhu , Jiawang Cao , Yanqiang Zheng , Jiawei Chen , Xu Yang , Bernt Schiele , Jonas Fischer , Xinting Hu

Large Vision-Language Models (LVLMs) have demonstrated remarkable capabilities in multimodal task reasoning. However, they often generate responses that appear plausible yet do not accurately reflect the visual content, a phenomenon known…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Jiaqi Wang , Yifei Gao , Jitao Sang

Large Language Models (LLMs) have demonstrated exceptional performance across various natural language processing tasks. However, they occasionally generate inaccurate and counterfactual outputs, a phenomenon commonly referred to as…

Computation and Language · Computer Science 2025-06-04 Dingwei Chen , Feiteng Fang , Shiwen Ni , Feng Liang , Xiping Hu , Ahmadreza Argha , Hamid Alinejad-Rokny , Min Yang , Chengming Li

Large Vision-Language Models (LVLMs) are increasingly adept at generating contextually detailed and coherent responses from visual inputs. However, their application in multimodal decision-making and open-ended generation is hindered by a…

Computer Vision and Pattern Recognition · Computer Science 2024-06-06 Xintong Wang , Jingheng Pan , Liang Ding , Chris Biemann

Large language models (LLMs) demonstrate strong capabilities in natural language processing but remain prone to hallucinations, generating factually incorrect or fabricated content. This issue undermines their reliability, particularly in…

Computation and Language · Computer Science 2025-02-19 Cheng Peng Huang , Hao-Yuan Chen

Despite recent advances in Large Vision Language Models (LVLMs), these models still suffer from generating hallucinatory responses that do not align with the visual input provided. To mitigate such hallucinations, we introduce Efficient…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Laura Fieback , Nishilkumar Balar , Jakob Spiegelberg , Hanno Gottschalk

Despite the impressive capabilities of Large Vision-Language Models (LVLMs), they remain susceptible to hallucinations-generating content that is inconsistent with the input image. Existing training-free hallucination mitigation methods…

Machine Learning · Computer Science 2025-05-20 Kai Tang , Jinhao You , Xiuqi Ge , Hanze Li , Yichen Guo , Xiande Huang

Large Vision-Language Models have shown strong multimodal reasoning capabilities, yet they remain susceptible to object hallucinations when language priors dominate insufficient or misaligned visual evidence. Training-free contrastive…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Xiaoyi Huang , Kejia Zhang , Zhiming Luo

Despite their impressive capabilities, large language models (LLMs) are prone to hallucinations, i.e., generating content that deviates from facts seen during pretraining. We propose a simple decoding strategy for reducing hallucinations…

Computation and Language · Computer Science 2024-03-12 Yung-Sung Chuang , Yujia Xie , Hongyin Luo , Yoon Kim , James Glass , Pengcheng He

Multimodal large language models (MLLMs) frequently hallucinate by over-committing to spurious visual cues. Prior remedies-Visual and Instruction Contrastive Decoding (VCD, ICD)-mitigate this issue, yet the mechanism remains opaque. We…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Yujun Wang , Aniri , Jinhe Bi , Soeren Pirk , Yunpu Ma

Hallucination remains a major challenge in multimodal large language models (MLLMs). To address this, various contrastive decoding (CD) methods have been proposed that contrasts original logits with hallucinated logits generated from…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Chaeyoung Jung , Youngjoon Jang , Joon Son Chung

Large Vision-Language Models (LVLMs) integrate image encoders with Large Language Models (LLMs) to process multi-modal inputs and perform complex visual tasks. However, they often generate hallucinations by describing non-existent objects…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Yaqi Sun , Kyohei Atarashi , Koh Takeuchi , Hisashi Kashima
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