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Object hallucination has been an Achilles' heel which hinders the broader applications of large vision-language models (LVLMs). Object hallucination refers to the phenomenon that the LVLMs claim non-existent objects in the image. To…

计算机视觉与模式识别 · 计算机科学 2024-07-01 Junfei Wu , Qiang Liu , Ding Wang , Jinghao Zhang , Shu Wu , Liang Wang , Tieniu Tan

Large language models (LLMs) are known to "hallucinate" by generating false or misleading outputs. Hallucinations pose various harms, from erosion of trust to widespread misinformation. Existing hallucination evaluation, however, focuses…

机器学习 · 计算机科学 2026-02-03 Prakhar Ganesh , Reza Shokri , Golnoosh Farnadi

Large language models(LLMs) excel at text generation and knowledge question-answering tasks, but they are prone to generating hallucinated content, severely limiting their application in high-risk domains. Current hallucination detection…

计算与语言 · 计算机科学 2025-12-25 Shize Liang , Hongzhi Wang

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…

计算与语言 · 计算机科学 2025-08-01 Esmail Gumaan

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…

计算机视觉与模式识别 · 计算机科学 2025-02-25 Yaqi Sun , Kyohei Atarashi , Koh Takeuchi , Hisashi Kashima

Large Language Models (LLMs) have revolutionized Natural Language Processing (NLP) based applications including automated text generation, question answering, chatbots, and others. However, they face a significant challenge: hallucinations,…

计算与语言 · 计算机科学 2024-11-22 Ernests Lavrinovics , Russa Biswas , Johannes Bjerva , Katja Hose

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

Despite the state-of-the-art performance of Large Language Models (LLMs), these models often suffer from hallucinations, which can undermine their performance in critical applications. In this work, we propose SAFE, a novel method for…

计算与语言 · 计算机科学 2025-03-06 Samir Abdaljalil , Filippo Pallucchini , Andrea Seveso , Hasan Kurban , Fabio Mercorio , Erchin Serpedin

Large language models (LLMs) possess extensive world knowledge, including geospatial knowledge, which has been successfully applied to various geospatial tasks such as mobility prediction and social indicator prediction. However, LLMs often…

计算与语言 · 计算机科学 2025-07-29 Shengyuan Wang , Jie Feng , Tianhui Liu , Dan Pei , Yong Li

Large language models (LLMs) exhibit hallucinations in long-form question-answering tasks across various domains and wide applications. Current hallucination detection and mitigation datasets are limited in domains and sizes, which struggle…

计算与语言 · 计算机科学 2024-12-20 Yuzhe Gu , Ziwei Ji , Wenwei Zhang , Chengqi Lyu , Dahua Lin , Kai Chen

Empowered by large language models (LLMs), intelligent agents have become a popular paradigm for interacting with open environments to facilitate AI deployment. However, hallucinations generated by LLMs-where outputs are inconsistent with…

机器学习 · 计算机科学 2025-07-23 Siyuan Liu , Wenjing Liu , Zhiwei Xu , Xin Wang , Bo Chen , Tao Li

Due to the unidirectional masking mechanism, Decoder-Only models propagate information from left to right. LVLMs (Large Vision-Language Models) follow the same architecture, with visual information gradually integrated into semantic…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Jianfei Zhao , Feng Zhang , Xin Sun , Chong Feng

The hallucination issue is recognized as a fundamental deficiency of large language models (LLMs), especially when applied to fields such as finance, education, and law. Despite the growing concerns, there has been a lack of empirical…

计算与语言 · 计算机科学 2023-11-28 Haoqiang Kang , Xiao-Yang Liu

The emergence of Large Language Models (LLMs) has revolutionized how users access information, shifting from traditional search engines to direct question-and-answer interactions with LLMs. However, the widespread adoption of LLMs has…

计算与语言 · 计算机科学 2024-07-23 Weihang Su , Yichen Tang , Qingyao Ai , Changyue Wang , Zhijing Wu , Yiqun Liu

Large Language Models (LLMs) excel in language comprehension and generation but are prone to hallucinations, producing factually incorrect or unsupported outputs. Retrieval Augmented Generation (RAG) systems address this issue by grounding…

信息检索 · 计算机科学 2025-04-09 Chandana Sree Mala , Gizem Gezici , Fosca Giannotti

Fusing visual understanding into language generation, Multi-modal Large Language Models (MLLMs) are revolutionizing visual-language applications. Yet, these models are often plagued by the hallucination problem, which involves generating…

机器学习 · 计算机科学 2025-01-28 Yining Wang , Mi Zhang , Junjie Sun , Chenyue Wang , Min Yang , Hui Xue , Jialing Tao , Ranjie Duan , Jiexi Liu

Large Language Models (LLMs) have shown remarkable capabilities in tool calling and tool usage, but suffer from hallucinations where they choose incorrect tools, provide malformed parameters and exhibit 'tool bypass' behavior by performing…

人工智能 · 计算机科学 2026-01-09 Kait Healy , Bharathi Srinivasan , Visakh Madathil , Jing Wu

Large Language Models (LLMs) are increasingly applied to medical imaging tasks, including image interpretation and synthetic image generation. However, these models often produce hallucinations, which are confident but incorrect outputs…

图像与视频处理 · 电气工程与系统科学 2025-08-12 Anindya Bijoy Das , Shahnewaz Karim Sakib , Shibbir Ahmed

Hallucination, a phenomenon where large language models (LLMs) produce output that is factually incorrect or unrelated to the input, is a major challenge for LLM applications that require accuracy and dependability. In this paper, we…

计算与语言 · 计算机科学 2025-04-01 Song Wang , Xun Wang , Jie Mei , Yujia Xie , Sean Muarray , Zhang Li , Lingfeng Wu , Si-Qing Chen , Wayne Xiong

Large Language Models (LLMs) exhibit impressive reasoning and question-answering capabilities. However, they often produce inaccurate or unreliable content known as hallucinations. This unreliability significantly limits their deployment in…

机器学习 · 计算机科学 2025-09-16 Minh Vu , Brian K. Tran , Syed A. Shah , Geigh Zollicoffer , Nhat Hoang-Xuan , Manish Bhattarai