Dynamic Analysis and Adaptive Discriminator for Fake News Detection
Great Bay University（大湾区大学）；Tianjin University（天津大学）；The Hong Kong Polytechnic University（香港理工大学）；Institute of Automation, Chinese Academy of Sciences（中国科学院自动化研究所）；Beihang University（北京航空航天大学）；Sun Yat-sen University（中山大学）
Xinqi Su, Zitong Yu, Yawen Cui, Ajian Liu, Xun Lin, Yuhao Wang, Haochen Liang, Wenhui Li, Li Shen, Xiaochun Cao
In current web environment, fake news spreads rapidly across online social networks, posing serious threats to society. Existing multimodal fake news detection methods can generally be classified into knowledge-based and semantic-based approaches. However, these methods are heavily rely on human expertise and feedback, lacking flexibility. To address this challenge, we propose a Dynamic Analysis and Adaptive Discriminator (DAAD) approach for fake news detection. For knowledge-based methods, we introduce the Monte Carlo Tree Search algorithm to leverage the self-reflective capabilities of large language models (LLMs) for prompt optimization, providing richer, domain-specific details and guidance to the LLMs, while enabling more flexible integration of LLM comment on news content. For semantic-based methods, we define four typical deceit patterns: emotional exaggeration, logical inconsistency, image manipulation, and semantic inconsistency, to reveal the mechanisms behind fake news creation. To detect these patterns, we carefully design four discriminators and expand them in depth and breadth, using the soft-routing mechanism to explore optimal detection models. Experimental results on three real-world datasets demonstrate the superiority of our approach. The code will be available at: https://github.com/SuXinqi/DAAD.
The Stepwise Deception: Simulating the Evolution from True News to Fake News with LLM Agents
Gaoling School of Artificial Intelligence, Renmin University of China（中国人民大学北京校区人工智能学院）；MBZUAI；Engineering Research Center of Next-Generation Intelligent Search and Recommendation, MoE（下一代智能搜索与推荐工程研究中心，教育部）；School of Artifcial Intelligence, Wuhan University（武汉大学人工智能学院）
Fake News Detectors are Biased against Texts Generated by Large Language Models
Mohamed bin Zayed University of Artificial Intelligence（穆罕默德·本·扎耶德人工智能大学）；King Abdullah University of Science and Technology（阿卜杜拉国王科技大学）；Monash University（莫纳什大学）；CSIRO’s Data61（澳大利亚联邦科学与工业研究组织Data61部门）
在过去的几十年里，社交媒体的重要性增加了许多倍，因为它可以帮助来自世界上最偏远角落的人们保持联系。随着技术的出现，数字媒体变得比以往任何时候都更加相关和广泛使用，与此同时，需要立即关注的假新闻和推文的传播死灰复燃。在本文中，我们描述了一种新型的假新闻检测系统，该系统可以自动识别新闻项目是“真”还是“假”，作为我们在CONSTRAINT COVID-19 Fake News Detection in English challenge中工作的扩展。我们使用了一个集成模型，该模型由预训练模型和统计特征融合网络组成，以及一种新的启发式算法，该算法通过将新闻项或推文中存在的各种属性（如来源，用户名句柄，URL域和作者）作为统计特征。我们提出的框架还量化了可靠的预测不确定性以及分类任务的适当类输出置信水平。我们已经在COVID-19 Fake News数据集和FakeNewsNet数据集上评估了我们的结果，以显示所提出的算法在检测短新闻内容以及新闻文章中的假新闻方面的有效性。我们在COVID-19数据集上获得了0.9892的最佳F1分数，在FakeNewsNet数据集上获得了0.9073的F1分数。
MCFEND: A Multi-source Benchmark Dataset for Chinese Fake News Detection
Hong Kong Baptist University（香港浸会大学）；The Chinese University of Hong Kong, Shenzhen（香港中文大学（深圳））；Beijing Normal University-Hong Kong Baptist University United International College（北京师范大学-香港浸会大学联合国际学院）；The University of Hong Kong（香港大学）
Key Lab of Intelligent Information Processing of Chinese Academy of Sciences (CAS), Institute of Computing Technology, CAS（中国科学院智能信息处理重点实验室，中国科学院计算技术研究所）；University of Chinese Academy of Sciences（中国科学院大学）；State Key Laboratory of Media Convergence Production Technology and Systems（媒体融合生产技术与系统国家重点实验室）
MPPFND: A Dataset and Analysis of Detecting Fake News with Multi-Platform Propagation
Institute of Information Engineering, Chinese Academy of Sciences（中国科学院信息工程研究所）；School of Cyber Security, University of Chinese Academy of Sciences（中国科学院大学网络安全学院）；Division of Emerging Interdisciplinary Areas, Hong Kong University of Science and Technology（香港科技大学新兴交叉学科 division）
