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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

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…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Xiaochen Yang , Hao Fang , Jiawei Kong , Yaoxin Mao , Bin Chen , Shu-Tao Xia

Hallucination in large language models (LLMs) is a fundamental challenge, particularly in open-domain question answering. Prior work attempts to detect hallucination with model-internal signals such as token-level entropy or generation…

计算与语言 · 计算机科学 2025-11-25 Shuo Zhang , Fabrizio Gotti , Fengran Mo , Jian-Yun Nie

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

Hallucinations in large vision-language models (LVLMs) often stem from the model's sensitivity to image tokens during decoding, as evidenced by attention peaks observed when generating both real and hallucinated entities. To address this,…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Shuaiye Lu , Linjiang Zhou , Xiaochuan Shi

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…

计算与语言 · 计算机科学 2025-08-13 Yuying Shang , Xinyi Zeng , Yutao Zhu , Xiao Yang , Zhengwei Fang , Jingyuan Zhang , Jiawei Chen , Zinan Liu , Yu Tian

This paper mainly describes a unified system for hallucination detection of LLMs, which wins the second prize in the model-agnostic track of the SemEval-2024 Task 6, and also achieves considerable results in the model-aware track. This task…

计算与语言 · 计算机科学 2024-02-21 Chengcheng Wei , Ze Chen , Songtan Fang , Jiarong He , Max Gao

Hallucinations of vision-language models (VLMs), which are misalignments between visual content and generated text, undermine the reliability of VLMs. One common approach for detecting them employs the same VLM, or a different one, to…

计算机视觉与模式识别 · 计算机科学 2025-11-17 Ofir Azachi , Kfir Eliyahu , Eyal El Ani , Rom Himelstein , Roi Reichart , Yuval Pinter , Nitay Calderon

Rapid progress in large vision-language models (LVLMs) has achieved unprecedented performance in vision-language tasks. However, due to the strong prior of large language models (LLMs) and misaligned attention across modalities, LVLMs often…

计算机视觉与模式识别 · 计算机科学 2026-02-11 Ziqiang Shi , Rujie Liu , Shanshan Yu , Satoshi Munakata , Koichi Shirahata

Large language models (LLMs) are prone to hallucinations, which sparked a widespread effort to detect and prevent them. Recent work attempts to mitigate hallucinations by intervening in the model's generation, typically computing…

计算与语言 · 计算机科学 2024-07-12 Adi Simhi , Jonathan Herzig , Idan Szpektor , Yonatan Belinkov

The rapid advancement of large language models (LLMs) has significantly impacted various domains, including healthcare and biomedicine. However, the phenomenon of hallucination, where LLMs generate outputs that deviate from factual accuracy…

计算与语言 · 计算机科学 2024-08-27 Duy Khoa Pham , Bao Quoc Vo

Hallucinations of large language models (LLMs) commonly occur in domain-specific downstream tasks, with no exception in ontology matching (OM). The prevalence of using LLMs for OM raises the need for benchmarks to better understand LLM…

人工智能 · 计算机科学 2026-01-30 Zhangcheng Qiang , Kerry Taylor , Weiqing Wang , Jing Jiang

Evaluating the importance of different layers in large language models (LLMs) is crucial for optimizing model performance and interpretability. This paper first explores layer importance using the Activation Variance-Sparsity Score (AVSS),…

计算与语言 · 计算机科学 2024-11-18 Zichen Song , Sitan Huang , Yuxin Wu , Zhongfeng Kang

Hallucinations in large language models (LLMs) - instances where models generate plausible but factually incorrect information - present a significant challenge for AI. We introduce "Ask a Local", a novel hallucination detection method…

计算与语言 · 计算机科学 2025-06-05 Aldan Creo , Héctor Cerezo-Costas , Pedro Alonso-Doval , Maximiliano Hormazábal-Lagos

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…

人工智能 · 计算机科学 2024-10-22 Wei Lan , Wenyi Chen , Qingfeng Chen , Shirui Pan , Huiyu Zhou , Yi Pan

Large language models (LLMs) have garnered significant interest in AI community. Despite their impressive generation capabilities, they have been found to produce misleading or fabricated information, a phenomenon known as hallucinations.…

机器学习 · 计算机科学 2025-10-21 Wenyun Li , Zheng Zhang , Dongmei Jiang , Xiangyuan Lan

Hallucination is a well-known phenomenon in text generated by large language models (LLMs). The existence of hallucinatory responses is found in almost all application scenarios e.g., summarization, question-answering (QA) etc. For…

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…

计算机视觉与模式识别 · 计算机科学 2026-02-11 Jingyi Wang , Fei Li , Rujie Liu

Large Vision-Language Models (VLMs) rely on effective multimodal alignment between pre-trained vision encoders and Large Language Models (LLMs) to integrate visual and textual information. This paper presents a comprehensive analysis of…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Shweta Mahajan , Hoang Le , Hyojin Park , Farzad Farhadzadeh , Munawar Hayat , Fatih Porikli

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…