FakeExpose:通过迁移学习,以多模态为目标,揭露新闻的虚假

IF 1.1 Q3 INFORMATION SCIENCE & LIBRARY SCIENCE JOURNAL OF INFORMATION & OPTIMIZATION SCIENCES Pub Date : 2023-01-01 DOI:10.47974/jios-1342
Sakshi Kalra, Chitneedi Hemanth Sai Kumar, Yashvardhan Sharma, G. S. Chauhan
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引用次数: 0

摘要

社交媒体对新闻的利用有利有弊。人们通过网络媒体寻找和阅读新闻有几个原因。一方面,它更容易访问,另一方面,社交媒体的动态内容和错误信息给政府和公共机构带来了严重的问题。过去已经进行了几项研究,对在线评论及其文本内容进行分类。本文提出了一种涵盖文本和图像的多模式(FND)任务策略。建议的模型(FakeExpose)是为了自动学习各种判别特征而创建的,而不是依赖于手动创建的特征。使用了几个预训练的单词和图像嵌入模型,如蒸馏roberta和视觉变形器(ViTs),并对其进行了微调,以获得最佳的特征提取和各种单词依赖关系。数据增强用于解决预先训练的文本特征提取器一次最多不能处理512个令牌的问题。根据目前的标准,所提出的模型在PolitiFact和GossipCop上的准确率分别为91.35%和98.59%。据我们所知,这是第一次尝试使用FakeNewsNet存储库来达到最大的多模态精度。结果表明,与仅使用文本或图像相比,结合文本和图像数据提高了准确性(单模态)。此外,结果表明,增加更多的数据提高了模型的准确性,而不是降低了它。
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FakeExpose: Uncovering the falsity of news by targeting the multimodality via transfer learning
Social media for news utilization has its own pros and cons. There are several reasons why people look for and read news through internet media. On the one hand, it is easier to access, and on the other, social media’s dynamic content and misinformation pose serious problems for both government and public institutions. Several studies have been conducted in the past to classify online reviews and their textual content. The current paper suggests a multimodal strategy for the (FND) task that covers both text and image. The suggested model (FakeExpose) is created to automatically learn a variety of discriminative features, instead of relying on manually created features. Several pre-trained words and image embedding models, such as DistilRoBERTa and Vision Transformers (ViTs) are used and fine-tined for the best feature extraction and the various word dependencies. Data augmentation is used to address the issue of pre-trained textual feature extractors not processing a maximum of 512 tokens at a time. The accuracy of the presented model on PolitiFact and GossipCop is 91.35 percent and 98.59 percent, respectively, based on current standards. According to our knowledge, this is the first attempt to use the FakeNewsNet repository to reach the maximum multimodal accuracy. The results show that combining text and image data improves accuracy when compared to utilizing only text or images (Unimodal). Moreover, the outcomes imply that adding more data has improved the model’s accuracy rather than degraded it.
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JOURNAL OF INFORMATION & OPTIMIZATION SCIENCES
JOURNAL OF INFORMATION & OPTIMIZATION SCIENCES INFORMATION SCIENCE & LIBRARY SCIENCE-
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21.40%
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