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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.…

Computer Vision and Pattern Recognition · Computer Science 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) deliver detailed responses on vision-language tasks, yet remain susceptible to object hallucination (introducing objects not present in the image), undermining reliability in practice. Prior efforts…

Machine Learning · Computer Science 2026-02-26 Shiwei Tan , Hengyi Wang , Weiyi Qin , Qi Xu , Zhigang Hua , Hao Wang

Large Vision-Language Models (LVLMs) usually generate texts which satisfy context coherence but don't match the visual input. Such a hallucination issue hinders LVLMs' applicability in the real world. The key to solving hallucination in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-20 Nanxing Hu , Xiaoyue Duan , Jinchao Zhang , Guoliang Kang

Large Language Models (LLMs) are widely used to generate plausible text on online platforms, without revealing the generation process. As users increasingly encounter such black-box outputs, detecting hallucinations has become a critical…

Computation and Language · Computer Science 2026-04-08 Joosung Lee , Cheonbok Park , Hwiyeol Jo , Jeonghoon Kim , Joonsuk Park , Kang Min Yoo

Artificial Intelligence (AI), particularly Large Language Models (LLMs), is transforming scientific discovery, enabling rapid knowledge generation and hypothesis formulation. However, a critical challenge is hallucination, where LLMs…

Artificial Intelligence · Computer Science 2025-12-30 Bhanu Prakash Vangala , Sajid Mahmud , Pawan Neupane , Joel Selvaraj , Jianlin Cheng

Hallucinations in large language models (LLMs) pose significant safety concerns that impede their broader deployment. Recent research in hallucination detection has demonstrated that LLMs' internal representations contain truthfulness…

Machine Learning · Computer Science 2025-11-11 Mengjia Niu , Hamed Haddadi , Guansong Pang

In the era of large language models (LLMs), hallucination (i.e., the tendency to generate factually incorrect content) poses great challenge to trustworthy and reliable deployment of LLMs in real-world applications. To tackle the LLM…

Computation and Language · Computer Science 2024-01-09 Junyi Li , Jie Chen , Ruiyang Ren , Xiaoxue Cheng , Wayne Xin Zhao , Jian-Yun Nie , Ji-Rong Wen

This research work delves into the manifestation of hallucination within Large Language Models (LLMs) and its consequential impacts on applications within the domain of mental health. The primary objective is to discern effective strategies…

Computation and Language · Computer Science 2024-10-16 Abdul Muqtadir , Hafiz Syed Muhammad Bilal , Ayesha Yousaf , Hafiz Farooq Ahmed , Jamil Hussain

Despite their impressive performance across a wide range of tasks, Large Vision-Language Models (LVLMs) remain prone to hallucination. In this study, we propose a comprehensive intervention framework aligned with the transformer's causal…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Jiaye Qian , Ge Zheng , Yuchen Zhu , Sibei Yang

By leveraging both texts and images, large vision language models (LVLMs) have shown significant progress in various multi-modal tasks. Nevertheless, these models often suffer from hallucinations, e.g., they exhibit inconsistencies between…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Nhi Pham , Michael Schott

Uncertainty estimation is a necessary component when implementing AI in high-risk settings, such as autonomous cars, medicine, or insurances. Large Language Models (LLMs) have seen a surge in popularity in recent years, but they are subject…

Machine Learning · Computer Science 2024-12-09 Gabriel Y. Arteaga , Thomas B. Schön , Nicolas Pielawski

The rise of Large Language Models (LLMs) has significantly advanced various applications on software engineering tasks, particularly in code generation. Despite the promising performance, LLMs are prone to generate hallucinations, which…

Software Engineering · Computer Science 2026-01-22 Fang Liu , Yang Liu , Lin Shi , Zhen Yang , Li Zhang , Xiaoli Lian , Zhongqi Li , Yuchi Ma

Hallucination is a persistent issue affecting all large language Models (LLMs), particularly within low-resource languages such as Persian. PerHalluEval (Persian Hallucination Evaluation) is the first dynamic hallucination evaluation…

Computation and Language · Computer Science 2025-09-26 Mohammad Hosseini , Kimia Hosseini , Shayan Bali , Zahra Zanjani , Saeedeh Momtazi

Large Vision-Language Models (LVLMs) have demonstrated proficiency in tackling a variety of visual-language tasks. However, current LVLMs suffer from misalignment between text and image modalities which causes three kinds of hallucination…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Liqiang Jing , Xinya Du

Hallucinations in large language models (LLMs) are commonly regarded as errors to be minimized. However, recent perspectives suggest that some hallucinations may encode creative or epistemically valuable content, a dimension that remains…

Computation and Language · Computer Science 2026-01-01 Chengxu Yang , Jingling Yuan , Siqi Cai , Jiawei Jiang , Chuang Hu

Large language models (LLMs) have achieved significant success in interacting with human. However, recent studies have revealed that these models often suffer from hallucinations, leading to overly confident but incorrect judgments. This…

Computation and Language · Computer Science 2023-09-06 Yusheng Liao , Yutong Meng , Hongcheng Liu , Yanfeng Wang , Yu Wang

Large Language Models (LLMs) have expanded their capabilities beyond language generation to interact with external tools, enabling automation and real-world applications. However, tool hallucinations, where models either select…

Computation and Language · Computer Science 2025-05-30 Hongshen Xu , Zichen Zhu , Lei Pan , Zihan Wang , Su Zhu , Da Ma , Ruisheng Cao , Lu Chen , Kai Yu

Large language models (LLMs) are increasingly deployed in multilingual applications but often generate plausible yet incorrect or misleading outputs, known as hallucinations. While hallucination detection has been studied extensively in…

Computation and Language · Computer Science 2025-12-02 Hrishikesh Terdalkar , Kirtan Bhojani , Aryan Dongare , Omm Aditya Behera

Multi-modal Large Language Models (MLLMs) tuned on machine-generated instruction-following data have demonstrated remarkable performance in various multi-modal understanding and generation tasks. However, the hallucinations inherent in…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Qifan Yu , Juncheng Li , Longhui Wei , Liang Pang , Wentao Ye , Bosheng Qin , Siliang Tang , Qi Tian , Yueting Zhuang

Hallucinations in large language models (LLMs) are always seen as limitations. However, could they also be a source of creativity? This survey explores this possibility, suggesting that hallucinations may contribute to LLM application by…

Artificial Intelligence · Computer Science 2024-02-13 Xuhui Jiang , Yuxing Tian , Fengrui Hua , Chengjin Xu , Yuanzhuo Wang , Jian Guo