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Large Vision-Language Models (LVLMs) demonstrate remarkable capabilities in multimodal tasks, but visual object hallucination remains a persistent issue. It refers to scenarios where models generate inaccurate visual object-related…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Liqiang Jing , Guiming Hardy Chen , Ehsan Aghazadeh , Xin Eric Wang , Xinya Du

Large vision-language models (LVLMs) suffer from hallucination a lot, generating responses that apparently contradict to the image content occasionally. The key problem lies in its weak ability to comprehend detailed content in a…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Zhiyang Chen , Yousong Zhu , Yufei Zhan , Zhaowen Li , Chaoyang Zhao , Jinqiao Wang , Ming Tang

While Vision-Language Models (VLMs) have garnered increasing attention in the AI community due to their promising practical applications, they exhibit persistent hallucination issues, generating outputs misaligned with visual inputs. Recent…

Computer Vision and Pattern Recognition · Computer Science 2025-12-29 Jiayu Hu , Beibei Li , Jiangwei Xia , Yanjun Qin , Bing Ji , Zhongshi He

Large vision-language models have become widely adopted to advance in various domains. However, developing a trustworthy system with minimal interpretable characteristics of large-scale models presents a significant challenge. One of the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Huu-Thien Tran , Thanh-Dat Truong , Khoa Luu

Hallucinations in large language models (LLMs) present a growing challenge across real-world applications, from healthcare to law, where factual reliability is essential. Despite advances in alignment and instruction tuning, LLMs can still…

Computation and Language · Computer Science 2025-05-02 Makoto Sato

Although Large Vision-Language Models (LVLMs) have made substantial progress, hallucination, where generated text is not grounded in the visual input, remains a challenge. As LVLMs become stronger, previously reported hallucination…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 April Fu

Large Vision-Language Models (LVLMs) have achieved impressive performance in multimodal tasks, but they still suffer from hallucinations, i.e., generating content that is grammatically accurate but inconsistent with visual inputs. In this…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Chenxi Li , Yichen Guo , Benfang Qian , Jinhao You , Kai Tang , Yaosong Du , Zonghao Zhang , Xiande Huang

Hallucinations in Large Language Models (LLMs) represent a critical barrier to their reliable deployment, a vulnerability heavily exacerbated in non-English and resource-constrained contexts. Existing detection approaches that rely on…

Computation and Language · Computer Science 2026-05-26 Riasad Alvi , Nurul Labib Sayeedi , Md. Faiyaz Abdullah Sayeedi

Contrastive learning models based on Siamese structure have demonstrated remarkable performance in self-supervised learning. Such a success of contrastive learning relies on two conditions, a sufficient number of positive pairs and adequate…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Jing Wu , Jennifer Hobbs , Naira Hovakimyan

Multi-modal large language models (MLLMs) have been shown to efficiently integrate natural language with visual information to handle multi-modal tasks. However, MLLMs still face a fundamental limitation of hallucinations, where they tend…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Chaoya Jiang , Haiyang Xu , Mengfan Dong , Jiaxing Chen , Wei Ye , Ming Yan , Qinghao Ye , Ji Zhang , Fei Huang , Shikun Zhang

Machine Translation (MT) is undergoing a paradigm shift, with systems based on fine-tuned large language models (LLM) becoming increasingly competitive with traditional encoder-decoder models trained specifically for translation tasks.…

Computation and Language · Computer Science 2025-01-30 Zilu Tang , Rajen Chatterjee , Sarthak Garg

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…

Computer Vision and Pattern Recognition · Computer Science 2024-07-01 Junfei Wu , Qiang Liu , Ding Wang , Jinghao Zhang , Shu Wu , Liang Wang , Tieniu Tan

While large language models have transformed how we interact with AI systems, they have a critical weakness: they confidently state false information that sounds entirely plausible. This "hallucination" problem has become a major barrier to…

Artificial Intelligence · Computer Science 2025-11-18 Piyushkumar Patel

Large Vision-Language Models have demonstrated exceptional performance in multimodal reasoning and complex scene understanding. However, these models still face significant hallucination issues, where outputs contradict visual facts. Recent…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Wei Suo , Hanzu Zhang , Lijun Zhang , Ji Ma , Peng Wang , Yanning Zhang

Recent advancements in multimodal large language models have enhanced document understanding by integrating textual and visual information. However, existing models exhibit incompleteness within their paradigm in real-world scenarios,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Zhentao He , Can Zhang , Ziheng Wu , Zhenghao Chen , Yufei Zhan , Yifan Li , Zhao Zhang , Xian Wang , Minghui Qiu

The widespread adoption of large language and vision models in real-world applications has made urgent the need to address hallucinations -- instances where models produce incorrect or nonsensical outputs. These errors can propagate…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Zhengyi Ho , Siyuan Liang , Dacheng Tao

Hallucinations and off-target translation remain unsolved problems in MT, especially for low-resource languages and massively multilingual models. In this paper, we introduce two related methods to mitigate these failure cases with a…

Computation and Language · Computer Science 2024-01-30 Rico Sennrich , Jannis Vamvas , Alireza Mohammadshahi

Diffusion large language models generate text through multi-step denoising, where hallucination signals may emerge throughout the trajectory rather than only in the final output. Existing detectors mainly rely on output uncertainty or…

Computation and Language · Computer Science 2026-05-18 Guoshenghui Zhao , Tan Yu , Weijie Zhao

Large Language Model (LLM) hallucination is a significant barrier to their reliable deployment. Current methods like Retrieval-Augmented Generation (RAG) are often reactive. We introduce **Dynamic Self-reinforcing Calibration for…

Computation and Language · Computer Science 2025-09-18 Xiao Zheng

Hallucinations pose a significant obstacle to the reliability and widespread adoption of language models, yet their accurate measurement remains a persistent challenge. While many task- and domain-specific metrics have been proposed to…

Computation and Language · Computer Science 2025-10-10 Atharva Kulkarni , Yuan Zhang , Joel Ruben Antony Moniz , Xiou Ge , Bo-Hsiang Tseng , Dhivya Piraviperumal , Swabha Swayamdipta , Hong Yu