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Vision-Language Models (VLMs) trained on web-scale corpora excel at natural image tasks and are increasingly repurposed for healthcare; however, their competence in medical tasks remains underexplored. We present a comprehensive evaluation…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Che Liu , Jiazhen Pan , Weixiang Shen , Wenjia Bai , Daniel Rueckert , Rossella Arcucci

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…

Computation and Language · Computer Science 2024-07-12 Adi Simhi , Jonathan Herzig , Idan Szpektor , Yonatan Belinkov

Evaluating large language models (LLMs) in the biomedical domain requires benchmarks that can distinguish reasoning from pattern matching and remain discriminative as model capabilities improve. Existing biomedical question answering (QA)…

Medical vision--language models (VLMs) have shown strong potential for medical visual question answering (VQA), yet their reasoning remains largely text-centric: images are encoded once as static context, and subsequent inference is…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Suyang Xi , Songtao Hu , Yuxiang Lai , Wangyun Dan , Yaqi Liu , Shansong Wang , Xiaofeng Yang

Large language models (LLMs) offer transformative potential for clinical decision support in spine surgery but pose significant risks through hallucinations, which are factually inconsistent or contextually misaligned outputs that may…

Machine Learning · Computer Science 2025-11-21 Dong Chen , Yanzhe Wei , Zonglin He , Guan-Ming Kuang , Canhua Ye , Meiru An , Huili Peng , Yong Hu , Huiren Tao , Kenneth MC Cheung

Hallucinations pose a significant challenge in Large Vision Language Models (LVLMs), with misalignment between multimodal features identified as a key contributing factor. This paper reveals the negative impact of the long-term decay in…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Qiyan Zhao , Xiaofeng Zhang , Yiheng Li , Yun Xing , Xiaosong Yuan , Feilong Tang , Sinan Fan , Xuhang Chen , Xuyao Zhang , Dahan Wang

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

Recent advances in multimodal large language models (MLLMs) mark a shift from non-thinking models to post-trained reasoning models capable of solving complex problems through thinking. However, whether such thinking mitigates hallucinations…

Computation and Language · Computer Science 2026-02-02 Zhidian Huang , Zijun Yao , Ji Qi , Shangqing Tu , Junxian Ma , Jinxin Liu , Weichuan Liu , Xiaoyin Che , Lei Hou , Juanzi Li

Medical Vision-Language Models (Med-VLMs) have achieved expert-level proficiency in interpreting diagnostic imaging. However, current models are predominantly trained on professional literature, limiting their ability to communicate…

Computation and Language · Computer Science 2026-04-08 Han Jang , Junhyeok Lee , Heeseong Eum , Kyu Sung Choi

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…

Computation and Language · Computer Science 2024-08-27 Duy Khoa Pham , Bao Quoc Vo

This paper presents MobQA, a benchmark dataset designed to evaluate the semantic understanding capabilities of large language models (LLMs) for human mobility data through natural language question answering. While existing models excel at…

Computation and Language · Computer Science 2025-08-18 Hikaru Asano , Hiroki Ouchi , Akira Kasuga , Ryo Yonetani

Large Vision-Language Models (LVLMs) are an extension of Large Language Models (LLMs) that facilitate processing both image and text inputs, expanding AI capabilities. However, LVLMs struggle with object hallucinations due to their reliance…

Computation and Language · Computer Science 2024-08-12 Avshalom Manevich , Reut Tsarfaty

Vision-Language Models (VLM) can support clinicians by analyzing medical images and engaging in natural language interactions to assist in diagnostic and treatment tasks. However, VLMs often exhibit "hallucinogenic" behavior, generating…

Artificial Intelligence · Computer Science 2024-10-11 Shenghuan Sun , Alexander Schubert , Gregory M. Goldgof , Zhiqing Sun , Thomas Hartvigsen , Atul J. Butte , Ahmed Alaa

Multimodal large language models (MLLMs) have revolutionized the landscape of AI, demonstrating impressive capabilities in tackling complex vision and audio-language tasks. However, a critical challenge remains: these models often suffer…

Machine Learning · Computer Science 2026-05-05 Itai Allouche , Joseph Keshet

As we all know, hallucinations prevail in Large Language Models (LLMs), where the generated content is coherent but factually incorrect, which inflicts a heavy blow on the widespread application of LLMs. Previous studies have shown that…

Computation and Language · Computer Science 2024-10-15 Xinping Zhao , Jindi Yu , Zhenyu Liu , Jifang Wang , Dongfang Li , Yibin Chen , Baotian Hu , Min Zhang

Medical Vision-Language Models (MedVLMs) excel at perception tasks but struggle with complex clinical reasoning required in real-world scenarios. While reinforcement learning (RL) has been explored to enhance reasoning capabilities,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Meidan Ding , Jipeng Zhang , Wenxuan Wang , Haiqin Zhong , Xiaoling Luo , Wenting Chen , Linlin Shen

Medical Image Quality Assessment (IQA) serves as the first-mile safety gate for clinical AI, yet existing approaches remain constrained by scalar, score-based metrics and fail to reflect the descriptive, human-like reasoning process central…

Long-form mental health assessments pose unique challenges for large language models (LLMs), which often exhibit hallucinations or inconsistent reasoning when handling extended, domain-specific contexts. We introduce Stacked Multi-Model…

Computation and Language · Computer Science 2025-09-22 Jinwen Tang , Qiming Guo , Wenbo Sun , Yi Shang

Hallucinations pose a significant challenge to the reliability of large vision-language models, making their detection essential for ensuring accuracy in critical applications. Current detection methods often rely on computationally…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Eunkyu Park , Minyeong Kim , Gunhee Kim

Large Vision-Language Models (LVLMs) bridge the gap between visual and linguistic modalities, demonstrating strong potential across a variety of domains. However, despite significant progress, LVLMs still suffer from severe hallucination…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Ruiqi Ma , Yu Yan , Chunhong Zhang , Minghao Yin , XinChao Liu , Zhihong Jin , Zheng Hu