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Multimodal self-supervised representation learning has consistently proven to be a highly effective method in medical image analysis, offering strong task performance and producing biologically informed insights. However, these methods…

Computer Vision and Pattern Recognition · Computer Science 2024-03-11 Lucas Farndale , Chris Walsh , Robert Insall , Ke Yuan

This study explores the generation and evaluation of synthetic fake news through fact based manipulations using large language models (LLMs). We introduce a novel methodology that extracts key facts from real articles, modifies them, and…

Computation and Language · Computer Science 2025-04-10 Abdul Sittar , Luka Golob , Mateja Smiljanic

Collecting high-quality training data is essential for fine-tuning Large Language Models (LLMs). However, acquiring such data is often costly and time-consuming, especially for non-English languages such as Italian. Recently, researchers…

Computation and Language · Computer Science 2025-04-01 Fatemeh Mohammadi , Tommaso Romano , Samira Maghool , Paolo Ceravolo

Misinformation has become a major challenge in the era of increasing digital information, requiring the development of effective detection methods. We have investigated a novel approach to Out-Of-Context detection (OOCD) that uses synthetic…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Fatma Shalabi , Huy H. Nguyen , Hichem Felouat , Ching-Chun Chang , Isao Echizen

The increasing proliferation of misinformation and its alarming impact have motivated both industry and academia to develop approaches for fake news detection. However, state-of-the-art approaches are usually trained on datasets of smaller…

Computation and Language · Computer Science 2023-05-31 Sahar Tahmasebi , Sherzod Hakimov , Ralph Ewerth , Eric Müller-Budack

Recent years have witnessed the sustained evolution of misinformation that aims at manipulating public opinions. Unlike traditional rumors or fake news editors who mainly rely on generated and/or counterfeited images, text and videos,…

Computation and Language · Computer Science 2024-04-09 Yizhou Zhang , Loc Trinh , Defu Cao , Zijun Cui , Yan Liu

Large Language Models (LLM) are increasingly trained on data generated by other LLM, either because generated text and images become part of the pre-training corpus, or because synthetized data is used as a replacement for expensive…

Machine Learning · Computer Science 2024-10-28 Yunzhen Feng , Elvis Dohmatob , Pu Yang , Francois Charton , Julia Kempe

Synthetic data has been proposed as a solution to address the issue of high-quality data scarcity in the training of large language models (LLMs). Studies have shown that synthetic data can effectively improve the performance of LLMs on…

Computation and Language · Computer Science 2024-06-19 Jie Chen , Yupeng Zhang , Bingning Wang , Wayne Xin Zhao , Ji-Rong Wen , Weipeng Chen

Multimodal misinformation on online social platforms is becoming a critical concern due to increasing credibility and easier dissemination brought by multimedia content, compared to traditional text-only information. While existing…

Multimedia · Computer Science 2024-09-17 Hui Liu , Wenya Wang , Haoliang Li

Short video platforms have become important channels for news dissemination, offering a highly engaging and immediate way for users to access current events and share information. However, these platforms have also emerged as significant…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Weihao Zhong , Yinhao Xiao , Minghui Xu , Xiuzhen Cheng

The rise of multimodal misinformation on social platforms poses significant challenges for individuals and societies. Its increased credibility and broader impact compared to textual misinformation make detection complex, requiring robust…

Computation and Language · Computer Science 2024-06-24 Keyang Xuan , Li Yi , Fan Yang , Ruochen Wu , Yi R. Fung , Heng Ji

Generative models achieve remarkable results in multiple data domains, including images and texts, among other examples. Unfortunately, malicious users exploit synthetic media for spreading misinformation and disseminating deepfakes.…

Artificial Intelligence · Computer Science 2025-08-04 Tom Or , Omri Azencot

Synthetic data augmentation via large language models (LLMs) allows researchers to leverage additional training data, thus enhancing the performance of downstream tasks, especially when real-world data is scarce. However, the generated data…

Machine Learning · Computer Science 2025-03-25 Hsun-Yu Kuo , Yin-Hsiang Liao , Yu-Chieh Chao , Wei-Yun Ma , Pu-Jen Cheng

The recent success in language generation capabilities of large language models (LLMs), such as GPT, Bard, Llama etc., can potentially lead to concerns about their possible misuse in inducing mass agitation and communal hatred via…

Computation and Language · Computer Science 2024-01-10 Shrey Satapara , Parth Mehta , Debasis Ganguly , Sandip Modha

Multimedia content has become ubiquitous on social media platforms, leading to the rise of multimodal misinformation (MM) and the urgent need for effective strategies to detect and prevent its spread. In recent years, the challenge of…

Computer Vision and Pattern Recognition · Computer Science 2023-10-19 Stefanos-Iordanis Papadopoulos , Christos Koutlis , Symeon Papadopoulos , Panagiotis C. Petrantonakis

The widespread prevalence of misinformation poses significant societal concerns. Out-of-context misinformation, where authentic images are paired with false text, is particularly deceptive and easily misleads audiences. Most existing…

Artificial Intelligence · Computer Science 2025-02-04 Giovanni Pio Delvecchio , Huy Hong Nguyen , Isao Echizen

Multimodal misinformation floods on various social media, and continues to evolve in the era of AI-generated content (AIGC). The emerged misinformation with low creation cost and high deception poses significant threats to society. While…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Junjie Wu , Guohong Fu

Multimodal misinformation, such as miscaptioned images, where captions misrepresent an image's origin, context, or meaning, poses a growing challenge in the digital age. Due to the scarcity of large-scale annotated datasets for multimodal…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Stefanos-Iordanis Papadopoulos , Christos Koutlis , Symeon Papadopoulos , Panagiotis C. Petrantonakis

New advancements for the detection of synthetic images are critical for fighting disinformation, as the capabilities of generative AI models continuously evolve and can lead to hyper-realistic synthetic imagery at unprecedented scale and…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Pantelis Dogoulis , Giorgos Kordopatis-Zilos , Ioannis Kompatsiaris , Symeon Papadopoulos

Large language models (LLMs) make it possible to generate synthetic behavioural data at scale, offering an ethical and low-cost alternative to human experiments. Whether such data can faithfully capture psychological differences driven by…

Computation and Language · Computer Science 2025-11-27 Manuel Pratelli , Marinella Petrocchi