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Large language models (LLMs), including ChatGPT, Bard, and Llama, have achieved remarkable successes over the last two years in a range of different applications. In spite of these successes, there exist concerns that limit the wide…

Computation and Language · Computer Science 2024-01-17 Junliang Luo , Tianyu Li , Di Wu , Michael Jenkin , Steve Liu , Gregory Dudek

The rapid advancement of image generation technologies intensifies the demand for interpretable and robust detection methods. Although existing approaches often attain high accuracy, they typically operate as black boxes without providing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Yikun Ji , Hong Yan , Jun Lan , Huijia Zhu , Weiqiang Wang , Qi Fan , Liqing Zhang , Jianfu Zhang

The rapid advancement of foundation models (FMs) across language, image, audio, and video domains has shown remarkable capabilities in diverse tasks. However, the proliferation of FMs brings forth a critical challenge: the potential to…

Machine Learning · Computer Science 2024-10-04 Pranab Sahoo , Prabhash Meharia , Akash Ghosh , Sriparna Saha , Vinija Jain , Aman Chadha

Multimodal Vision Language Models (VLMs) have emerged as a transformative topic at the intersection of computer vision and natural language processing, enabling machines to perceive and reason about the world through both visual and textual…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Zongxia Li , Xiyang Wu , Hongyang Du , Fuxiao Liu , Huy Nghiem , Guangyao Shi

Large Vision Language Models exhibit remarkable capabilities but struggle with hallucinations inconsistencies between images and their descriptions. Previous hallucination evaluation studies on LVLMs have identified hallucinations in terms…

Artificial Intelligence · Computer Science 2024-11-11 Chaoya Jiang , Hongrui Jia , Wei Ye , Mengfan Dong , Haiyang Xu , Ming Yan , Ji Zhang , Shikun Zhang

MLLMs often generate outputs that are inconsistent with the visual content, a challenge known as hallucination. Previous methods focus on determining whether a generated output is hallucinated, without identifying which image region leads…

Computer Vision and Pattern Recognition · Computer Science 2024-07-31 Zheng Lin , Zhenxing Niu , Zhibin Wang , Yinghui Xu

Large Vision-Language Models (LVLMs) have demonstrated remarkable capabilities in visual understanding and multimodal reasoning. However, LVLMs frequently exhibit hallucination phenomena, manifesting as the generated textual responses that…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Ziyun Dai , Xiaoqiang Li , Shaohua Zhang , Yuanchen Wu , Jide Li

Despite the rapid progress of multimodal large language models (MLLMs), they have largely overlooked the importance of visual processing. In a simple yet revealing experiment, we interestingly find that language-only models, when provided…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Yuting Li , Lai Wei , Kaipeng Zheng , Jingyuan Huang , Guilin Li , Bo Wang , Linghe Kong , Lichao Sun , Weiran Huang

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

Multimodal large language models (MLLMs) are increasingly deployed in open-ended, real-world environments where inputs are messy, underspecified, and not always trustworthy. Unlike curated benchmarks, these settings frequently involve…

Artificial Intelligence · Computer Science 2025-08-26 Qianqi Yan , Hongquan Li , Shan Jiang , Yang Zhao , Xinze Guan , Ching-Chen Kuo , Xin Eric Wang

Large Language Models (LLMs) have demonstrated remarkable capabilities across diverse applications, from open-domain question answering to scientific writing, medical decision support, and legal analysis. However, their tendency to generate…

Computation and Language · Computer Science 2025-12-30 Diyana Muhammed , Giusy Giulia Tuccari , Gollam Rabby , Sören Auer , Sahar Vahdati

Multi-modal Large Language Models (MLLMs) demonstrate remarkable success across various vision-language tasks. However, they suffer from visual hallucination, where the generated responses diverge from the provided image. Are MLLMs…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Dingchen Yang , Bowen Cao , Guang Chen , Changjun Jiang

Mental visualization, the ability to construct and manipulate visual representations internally, is a core component of human cognition and plays a vital role in tasks involving reasoning, prediction, and abstraction. Despite the rapid…

Computer Vision and Pattern Recognition · Computer Science 2026-01-22 Mohammad Shahab Sepehri , Berk Tinaz , Zalan Fabian , Mahdi Soltanolkotabi

Recently, Multimodal Large Language Models (MLLMs) and Vision Language Models (VLMs) have shown great promise in language-guided perceptual tasks such as recognition, segmentation, and object detection. However, their effectiveness in…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Xu Cao , Yifan Shen , Bolin Lai , Wenqian Ye , Yunsheng Ma , Joerg Heintz , Jintai Chen , Meihuan Huang , Jianguo Cao , Aidong Zhang , James M. Rehg

Large language models (LLMs) can be prone to hallucinations - generating unreliable outputs that are unfaithful to their inputs, external facts or internally inconsistent. In this work, we address several challenges for post-hoc…

Computation and Language · Computer Science 2024-08-12 Simon Valentin , Jinmiao Fu , Gianluca Detommaso , Shaoyuan Xu , Giovanni Zappella , Bryan Wang

Recently, there has been increased interest in Small Language Models (SLMs), which are fast, show good performance, and have lower hardware demands than large language models (LLMs). However, SLMs hallucinate more frequently than LLMs,…

Computation and Language · Computer Science 2026-05-28 Saptarshi Sengupta , Suhang Wang

Multimodal Large Language Models (MLLMs) have become a powerful tool for integrating visual and textual information. Despite their exceptional performance on visual understanding benchmarks, measuring their ability to reason abstractly…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Nilay Yilmaz , Maitreya Patel , Yiran Lawrence Luo , Tejas Gokhale , Chitta Baral , Suren Jayasuriya , Yezhou Yang

Large vision-language models (VLMs) demonstrate strong performance in medical image understanding, but frequently generate clinically plausible yet incorrect statements, raising significant safety concerns. Existing medical hallucination…

Context-grounded hallucinations are cases where model outputs contain information not verifiable against the source text. We study the applicability of LLMs for localizing such hallucinations, as a more practical alternative to existing…

Computation and Language · Computer Science 2025-09-30 Yehonatan Peisakhovsky , Zorik Gekhman , Yosi Mass , Liat Ein-Dor , Roi Reichart

Multi-modal Large Language Models (MLLMs) are increasingly prominent in the field of artificial intelligence. These models not only excel in traditional vision-language tasks but also demonstrate impressive performance in contemporary…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Xiaotian Han , Quanzeng You , Yongfei Liu , Wentao Chen , Huangjie Zheng , Khalil Mrini , Xudong Lin , Yiqi Wang , Bohan Zhai , Jianbo Yuan , Heng Wang , Hongxia Yang