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Medical problem-solving demands expert knowledge and intricate reasoning. Recent studies of large language models (LLMs) attempt to ease this complexity by introducing external knowledge verification through retrieval-augmented generation…

Computation and Language · Computer Science 2026-01-19 Yue Huang , Yanyuan Chen , Dexuan Xu , Chenzhuo Zhao , Weihua Yue , Yu Huang

While Multimodal Large Language Models (MLLMs) show promising performance in automated electrocardiogram interpretation, it remains unclear whether they genuinely perform actual step-by-step reasoning or just rely on superficial visual…

Machine Learning · Computer Science 2026-03-17 Jungwoo Oh , Hyunseung Chung , Junhee Lee , Min-Gyu Kim , Hangyul Yoon , Ki Seong Lee , Youngchae Lee , Muhan Yeo , Edward Choi

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

Automated medical report generation (MRG) holds great promise for reducing the heavy workload of radiologists. However, its clinical deployment is hindered by three major sources of uncertainty. First, visual uncertainty, caused by noisy or…

Artificial Intelligence · Computer Science 2026-01-23 Yuhang Gu , Xingyu Hu , Yuyu Fan , Xulin Yan , Longhuan Xu , Peng peng

The rapid advancements in Vision Language Models (VLMs) have prompted the development of multi-modal medical assistant systems. Despite this progress, current models still have inherent probabilistic uncertainties, often producing erroneous…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Xiao Liang , Di Wang , Zhicheng Jiao , Ronghan Li , Pengfei Yang , Quan Wang , Tat-Seng Chua

Large language models are increasingly being used in patient-facing medical question answering, where hallucinated outputs can vary widely in potential harm. However, existing hallucination standards and evaluation metrics focus primarily…

Computation and Language · Computer Science 2026-03-02 Savan Doshi

Hallucinations in Large Language Models (LLMs), defined as the generation of content inconsistent with facts or context, represent a core obstacle to their reliable deployment in critical domains. Current research primarily focuses on…

Computation and Language · Computer Science 2026-03-20 Yanyi Liu , Qingwen Yang , Tiezheng Guo , Feiyu Qu , Jun Liu , Yingyou Wen

Large Reasoning Models (LRMs) have shown impressive capabilities in multi-step reasoning tasks. However, alongside these successes, a more deceptive form of model error has emerged--Reasoning Hallucination--where logically coherent but…

Artificial Intelligence · Computer Science 2025-05-20 Zhongxiang Sun , Qipeng Wang , Haoyu Wang , Xiao Zhang , Jun Xu

This research paper focuses on the challenges posed by hallucinations in large language models (LLMs), particularly in the context of the medical domain. Hallucination, wherein these models generate plausible yet unverified or incorrect…

Computation and Language · Computer Science 2023-10-17 Ankit Pal , Logesh Kumar Umapathi , Malaikannan Sankarasubbu

Vision-language foundation models achieve promising performance in natural image classification, yet their direct application to medical imaging is limited by severe domain shifts, resolution mismatches, and the multi-label nature of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Yitong Li , Morteza Ghahremani , Christian Wachinger

Vision-language models (VLMs) have shown potential for automated radiology report generation, yet existing approaches rely on global embedding compression of volumetric data, often leading to hallucinated findings and limited anatomical…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Giuseppe A. Orlando , Paolo Papotti , Maria A. Zuluaga , Olivier Humbert , Marco Lorenzi

Bias in medical artificial intelligence is conventionally viewed as a defect requiring elimination. However, human reasoning inherently incorporates biases shaped by education, culture, and experience, suggesting their presence may be…

Artificial Intelligence · Computer Science 2026-03-05 Farhad Abtahi , Mehdi Astaraki , Fernando Seoane

Vision-Language Foundation Models (VLFM) have shown a tremendous increase in performance in terms of generating high-resolution, photorealistic natural images. While VLFMs show a rich understanding of semantic content across modalities,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Parham Saremi , Amar Kumar , Mohamed Mohamed , Zahra TehraniNasab , Tal Arbel

Deepfake detection remains highly challenging, particularly in cross-dataset scenarios and complex real-world settings. This challenge mainly arises because artifact patterns vary substantially across different forgery methods, whereas…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Xiang Zhang , Wenliang Weng , Daoyong Fu , Beijing Chen , Ziqiang Li , Ziwen He , Zhangjie Fu

With the rapid advancement of generative AI, synthetic content across images, videos, and audio has become increasingly realistic, amplifying the risk of misinformation. Existing detection approaches predominantly focus on binary…

Machine Learning · Computer Science 2025-07-23 Xu Yang , Qi Zhang , Shuming Jiang , Yaowen Xu , Zhaofan Zou , Hao Sun , Xuelong Li

Medical Anomaly Detection (MedAD) presents a significant opportunity to enhance diagnostic accuracy using Large Multimodal Models (LMMs) to interpret and answer questions based on medical images. However, the reliance on Supervised…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Haitao Zhang , Yingying Wang , Jiaxiang Wang , Haote Xu , Hongyang Zhang , Yirong Chen , Yue Huang , Xinghao Ding

Current medical language models, adapted from large language models (LLMs), typically predict ICD code-based diagnosis from electronic health records (EHRs) because these labels are readily available. However, ICD codes do not capture the…

Computation and Language · Computer Science 2025-12-09 Wenhao Li , Hongkuan Zhang , Hongwei Zhang , Zhengxu Li , Zengjie Dong , Yafan Chen , Niranjan Bidargaddi , Hong Liu

Large vision-language models (LVLMs) have significantly improved multimodal reasoning tasks, such as visual question answering and image captioning. These models embed multimodal facts within their parameters, rather than relying on…

Computation and Language · Computer Science 2025-02-18 Shengkang Wang , Hongzhan Lin , Ziyang Luo , Zhen Ye , Guang Chen , Jing Ma

In this paper we present TruFor, a forensic framework that can be applied to a large variety of image manipulation methods, from classic cheapfakes to more recent manipulations based on deep learning. We rely on the extraction of both…

Computer Vision and Pattern Recognition · Computer Science 2023-05-29 Fabrizio Guillaro , Davide Cozzolino , Avneesh Sud , Nicholas Dufour , Luisa Verdoliva

Existing deepfake detection research has primarily focused on scenarios where the manipulated subject is actively speaking, i.e., generating fabricated content by altering the speaker's appearance or voice. However, in realistic interaction…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Miao Liu , Fangda Wei , Jing Wang , Xinyuan Qian
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